',\n BANG: '!',\n DOLLAR: '$',\n AMP: '&',\n PAREN_L: '(',\n PAREN_R: ')',\n SPREAD: '...',\n COLON: ':',\n EQUALS: '=',\n AT: '@',\n BRACKET_L: '[',\n BRACKET_R: ']',\n BRACE_L: '{',\n PIPE: '|',\n BRACE_R: '}',\n NAME: 'Name',\n INT: 'Int',\n FLOAT: 'Float',\n STRING: 'String',\n BLOCK_STRING: 'BlockString',\n COMMENT: 'Comment'\n});\n/**\n * The enum type representing the token kinds values.\n */\n\n/**\n * A helper function to describe a token as a string for debugging\n */\nexport function getTokenDesc(token) {\n var value = token.value;\n return value ? \"\".concat(token.kind, \" \\\"\").concat(value, \"\\\"\") : token.kind;\n}\nvar charCodeAt = String.prototype.charCodeAt;\nvar slice = String.prototype.slice;\n/**\n * Helper function for constructing the Token object.\n */\n\nfunction Tok(kind, start, end, line, column, prev, value) {\n this.kind = kind;\n this.start = start;\n this.end = end;\n this.line = line;\n this.column = column;\n this.value = value;\n this.prev = prev;\n this.next = null;\n} // Print a simplified form when appearing in JSON/util.inspect.\n\n\nTok.prototype.toJSON = Tok.prototype.inspect = function toJSON() {\n return {\n kind: this.kind,\n value: this.value,\n line: this.line,\n column: this.column\n };\n};\n\nfunction printCharCode(code) {\n return (// NaN/undefined represents access beyond the end of the file.\n isNaN(code) ? TokenKind.EOF : // Trust JSON for ASCII.\n code < 0x007f ? JSON.stringify(String.fromCharCode(code)) : // Otherwise print the escaped form.\n \"\\\"\\\\u\".concat(('00' + code.toString(16).toUpperCase()).slice(-4), \"\\\"\")\n );\n}\n/**\n * Gets the next token from the source starting at the given position.\n *\n * This skips over whitespace and comments until it finds the next lexable\n * token, then lexes punctuators immediately or calls the appropriate helper\n * function for more complicated tokens.\n */\n\n\nfunction readToken(lexer, prev) {\n var source = lexer.source;\n var body = source.body;\n var bodyLength = body.length;\n var pos = positionAfterWhitespace(body, prev.end, lexer);\n var line = lexer.line;\n var col = 1 + pos - lexer.lineStart;\n\n if (pos >= bodyLength) {\n return new Tok(TokenKind.EOF, bodyLength, bodyLength, line, col, prev);\n }\n\n var code = charCodeAt.call(body, pos); // SourceCharacter\n\n switch (code) {\n // !\n case 33:\n return new Tok(TokenKind.BANG, pos, pos + 1, line, col, prev);\n // #\n\n case 35:\n return readComment(source, pos, line, col, prev);\n // $\n\n case 36:\n return new Tok(TokenKind.DOLLAR, pos, pos + 1, line, col, prev);\n // &\n\n case 38:\n return new Tok(TokenKind.AMP, pos, pos + 1, line, col, prev);\n // (\n\n case 40:\n return new Tok(TokenKind.PAREN_L, pos, pos + 1, line, col, prev);\n // )\n\n case 41:\n return new Tok(TokenKind.PAREN_R, pos, pos + 1, line, col, prev);\n // .\n\n case 46:\n if (charCodeAt.call(body, pos + 1) === 46 && charCodeAt.call(body, pos + 2) === 46) {\n return new Tok(TokenKind.SPREAD, pos, pos + 3, line, col, prev);\n }\n\n break;\n // :\n\n case 58:\n return new Tok(TokenKind.COLON, pos, pos + 1, line, col, prev);\n // =\n\n case 61:\n return new Tok(TokenKind.EQUALS, pos, pos + 1, line, col, prev);\n // @\n\n case 64:\n return new Tok(TokenKind.AT, pos, pos + 1, line, col, prev);\n // [\n\n case 91:\n return new Tok(TokenKind.BRACKET_L, pos, pos + 1, line, col, prev);\n // ]\n\n case 93:\n return new Tok(TokenKind.BRACKET_R, pos, pos + 1, line, col, prev);\n // {\n\n case 123:\n return new Tok(TokenKind.BRACE_L, pos, pos + 1, line, col, prev);\n // |\n\n case 124:\n return new Tok(TokenKind.PIPE, pos, pos + 1, line, col, prev);\n // }\n\n case 125:\n return new Tok(TokenKind.BRACE_R, pos, pos + 1, line, col, prev);\n // A-Z _ a-z\n\n case 65:\n case 66:\n case 67:\n case 68:\n case 69:\n case 70:\n case 71:\n case 72:\n case 73:\n case 74:\n case 75:\n case 76:\n case 77:\n case 78:\n case 79:\n case 80:\n case 81:\n case 82:\n case 83:\n case 84:\n case 85:\n case 86:\n case 87:\n case 88:\n case 89:\n case 90:\n case 95:\n case 97:\n case 98:\n case 99:\n case 100:\n case 101:\n case 102:\n case 103:\n case 104:\n case 105:\n case 106:\n case 107:\n case 108:\n case 109:\n case 110:\n case 111:\n case 112:\n case 113:\n case 114:\n case 115:\n case 116:\n case 117:\n case 118:\n case 119:\n case 120:\n case 121:\n case 122:\n return readName(source, pos, line, col, prev);\n // - 0-9\n\n case 45:\n case 48:\n case 49:\n case 50:\n case 51:\n case 52:\n case 53:\n case 54:\n case 55:\n case 56:\n case 57:\n return readNumber(source, pos, code, line, col, prev);\n // \"\n\n case 34:\n if (charCodeAt.call(body, pos + 1) === 34 && charCodeAt.call(body, pos + 2) === 34) {\n return readBlockString(source, pos, line, col, prev);\n }\n\n return readString(source, pos, line, col, prev);\n }\n\n throw syntaxError(source, pos, unexpectedCharacterMessage(code));\n}\n/**\n * Report a message that an unexpected character was encountered.\n */\n\n\nfunction unexpectedCharacterMessage(code) {\n if (code < 0x0020 && code !== 0x0009 && code !== 0x000a && code !== 0x000d) {\n return \"Cannot contain the invalid character \".concat(printCharCode(code), \".\");\n }\n\n if (code === 39) {\n // '\n return \"Unexpected single quote character ('), did you mean to use \" + 'a double quote (\")?';\n }\n\n return \"Cannot parse the unexpected character \".concat(printCharCode(code), \".\");\n}\n/**\n * Reads from body starting at startPosition until it finds a non-whitespace\n * or commented character, then returns the position of that character for\n * lexing.\n */\n\n\nfunction positionAfterWhitespace(body, startPosition, lexer) {\n var bodyLength = body.length;\n var position = startPosition;\n\n while (position < bodyLength) {\n var code = charCodeAt.call(body, position); // tab | space | comma | BOM\n\n if (code === 9 || code === 32 || code === 44 || code === 0xfeff) {\n ++position;\n } else if (code === 10) {\n // new line\n ++position;\n ++lexer.line;\n lexer.lineStart = position;\n } else if (code === 13) {\n // carriage return\n if (charCodeAt.call(body, position + 1) === 10) {\n position += 2;\n } else {\n ++position;\n }\n\n ++lexer.line;\n lexer.lineStart = position;\n } else {\n break;\n }\n }\n\n return position;\n}\n/**\n * Reads a comment token from the source file.\n *\n * #[\\u0009\\u0020-\\uFFFF]*\n */\n\n\nfunction readComment(source, start, line, col, prev) {\n var body = source.body;\n var code;\n var position = start;\n\n do {\n code = charCodeAt.call(body, ++position);\n } while (code !== null && ( // SourceCharacter but not LineTerminator\n code > 0x001f || code === 0x0009));\n\n return new Tok(TokenKind.COMMENT, start, position, line, col, prev, slice.call(body, start + 1, position));\n}\n/**\n * Reads a number token from the source file, either a float\n * or an int depending on whether a decimal point appears.\n *\n * Int: -?(0|[1-9][0-9]*)\n * Float: -?(0|[1-9][0-9]*)(\\.[0-9]+)?((E|e)(+|-)?[0-9]+)?\n */\n\n\nfunction readNumber(source, start, firstCode, line, col, prev) {\n var body = source.body;\n var code = firstCode;\n var position = start;\n var isFloat = false;\n\n if (code === 45) {\n // -\n code = charCodeAt.call(body, ++position);\n }\n\n if (code === 48) {\n // 0\n code = charCodeAt.call(body, ++position);\n\n if (code >= 48 && code <= 57) {\n throw syntaxError(source, position, \"Invalid number, unexpected digit after 0: \".concat(printCharCode(code), \".\"));\n }\n } else {\n position = readDigits(source, position, code);\n code = charCodeAt.call(body, position);\n }\n\n if (code === 46) {\n // .\n isFloat = true;\n code = charCodeAt.call(body, ++position);\n position = readDigits(source, position, code);\n code = charCodeAt.call(body, position);\n }\n\n if (code === 69 || code === 101) {\n // E e\n isFloat = true;\n code = charCodeAt.call(body, ++position);\n\n if (code === 43 || code === 45) {\n // + -\n code = charCodeAt.call(body, ++position);\n }\n\n position = readDigits(source, position, code);\n }\n\n return new Tok(isFloat ? TokenKind.FLOAT : TokenKind.INT, start, position, line, col, prev, slice.call(body, start, position));\n}\n/**\n * Returns the new position in the source after reading digits.\n */\n\n\nfunction readDigits(source, start, firstCode) {\n var body = source.body;\n var position = start;\n var code = firstCode;\n\n if (code >= 48 && code <= 57) {\n // 0 - 9\n do {\n code = charCodeAt.call(body, ++position);\n } while (code >= 48 && code <= 57); // 0 - 9\n\n\n return position;\n }\n\n throw syntaxError(source, position, \"Invalid number, expected digit but got: \".concat(printCharCode(code), \".\"));\n}\n/**\n * Reads a string token from the source file.\n *\n * \"([^\"\\\\\\u000A\\u000D]|(\\\\(u[0-9a-fA-F]{4}|[\"\\\\/bfnrt])))*\"\n */\n\n\nfunction readString(source, start, line, col, prev) {\n var body = source.body;\n var position = start + 1;\n var chunkStart = position;\n var code = 0;\n var value = '';\n\n while (position < body.length && (code = charCodeAt.call(body, position)) !== null && // not LineTerminator\n code !== 0x000a && code !== 0x000d) {\n // Closing Quote (\")\n if (code === 34) {\n value += slice.call(body, chunkStart, position);\n return new Tok(TokenKind.STRING, start, position + 1, line, col, prev, value);\n } // SourceCharacter\n\n\n if (code < 0x0020 && code !== 0x0009) {\n throw syntaxError(source, position, \"Invalid character within String: \".concat(printCharCode(code), \".\"));\n }\n\n ++position;\n\n if (code === 92) {\n // \\\n value += slice.call(body, chunkStart, position - 1);\n code = charCodeAt.call(body, position);\n\n switch (code) {\n case 34:\n value += '\"';\n break;\n\n case 47:\n value += '/';\n break;\n\n case 92:\n value += '\\\\';\n break;\n\n case 98:\n value += '\\b';\n break;\n\n case 102:\n value += '\\f';\n break;\n\n case 110:\n value += '\\n';\n break;\n\n case 114:\n value += '\\r';\n break;\n\n case 116:\n value += '\\t';\n break;\n\n case 117:\n // u\n var charCode = uniCharCode(charCodeAt.call(body, position + 1), charCodeAt.call(body, position + 2), charCodeAt.call(body, position + 3), charCodeAt.call(body, position + 4));\n\n if (charCode < 0) {\n throw syntaxError(source, position, 'Invalid character escape sequence: ' + \"\\\\u\".concat(body.slice(position + 1, position + 5), \".\"));\n }\n\n value += String.fromCharCode(charCode);\n position += 4;\n break;\n\n default:\n throw syntaxError(source, position, \"Invalid character escape sequence: \\\\\".concat(String.fromCharCode(code), \".\"));\n }\n\n ++position;\n chunkStart = position;\n }\n }\n\n throw syntaxError(source, position, 'Unterminated string.');\n}\n/**\n * Reads a block string token from the source file.\n *\n * \"\"\"(\"?\"?(\\\\\"\"\"|\\\\(?!=\"\"\")|[^\"\\\\]))*\"\"\"\n */\n\n\nfunction readBlockString(source, start, line, col, prev) {\n var body = source.body;\n var position = start + 3;\n var chunkStart = position;\n var code = 0;\n var rawValue = '';\n\n while (position < body.length && (code = charCodeAt.call(body, position)) !== null) {\n // Closing Triple-Quote (\"\"\")\n if (code === 34 && charCodeAt.call(body, position + 1) === 34 && charCodeAt.call(body, position + 2) === 34) {\n rawValue += slice.call(body, chunkStart, position);\n return new Tok(TokenKind.BLOCK_STRING, start, position + 3, line, col, prev, blockStringValue(rawValue));\n } // SourceCharacter\n\n\n if (code < 0x0020 && code !== 0x0009 && code !== 0x000a && code !== 0x000d) {\n throw syntaxError(source, position, \"Invalid character within String: \".concat(printCharCode(code), \".\"));\n } // Escape Triple-Quote (\\\"\"\")\n\n\n if (code === 92 && charCodeAt.call(body, position + 1) === 34 && charCodeAt.call(body, position + 2) === 34 && charCodeAt.call(body, position + 3) === 34) {\n rawValue += slice.call(body, chunkStart, position) + '\"\"\"';\n position += 4;\n chunkStart = position;\n } else {\n ++position;\n }\n }\n\n throw syntaxError(source, position, 'Unterminated string.');\n}\n/**\n * Converts four hexidecimal chars to the integer that the\n * string represents. For example, uniCharCode('0','0','0','f')\n * will return 15, and uniCharCode('0','0','f','f') returns 255.\n *\n * Returns a negative number on error, if a char was invalid.\n *\n * This is implemented by noting that char2hex() returns -1 on error,\n * which means the result of ORing the char2hex() will also be negative.\n */\n\n\nfunction uniCharCode(a, b, c, d) {\n return char2hex(a) << 12 | char2hex(b) << 8 | char2hex(c) << 4 | char2hex(d);\n}\n/**\n * Converts a hex character to its integer value.\n * '0' becomes 0, '9' becomes 9\n * 'A' becomes 10, 'F' becomes 15\n * 'a' becomes 10, 'f' becomes 15\n *\n * Returns -1 on error.\n */\n\n\nfunction char2hex(a) {\n return a >= 48 && a <= 57 ? a - 48 // 0-9\n : a >= 65 && a <= 70 ? a - 55 // A-F\n : a >= 97 && a <= 102 ? a - 87 // a-f\n : -1;\n}\n/**\n * Reads an alphanumeric + underscore name from the source.\n *\n * [_A-Za-z][_0-9A-Za-z]*\n */\n\n\nfunction readName(source, start, line, col, prev) {\n var body = source.body;\n var bodyLength = body.length;\n var position = start + 1;\n var code = 0;\n\n while (position !== bodyLength && (code = charCodeAt.call(body, position)) !== null && (code === 95 || // _\n code >= 48 && code <= 57 || // 0-9\n code >= 65 && code <= 90 || // A-Z\n code >= 97 && code <= 122) // a-z\n ) {\n ++position;\n }\n\n return new Tok(TokenKind.NAME, start, position, line, col, prev, slice.call(body, start, position));\n}","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * strict\n */\n\n/**\n * The set of allowed kind values for AST nodes.\n */\nexport var Kind = Object.freeze({\n // Name\n NAME: 'Name',\n // Document\n DOCUMENT: 'Document',\n OPERATION_DEFINITION: 'OperationDefinition',\n VARIABLE_DEFINITION: 'VariableDefinition',\n SELECTION_SET: 'SelectionSet',\n FIELD: 'Field',\n ARGUMENT: 'Argument',\n // Fragments\n FRAGMENT_SPREAD: 'FragmentSpread',\n INLINE_FRAGMENT: 'InlineFragment',\n FRAGMENT_DEFINITION: 'FragmentDefinition',\n // Values\n VARIABLE: 'Variable',\n INT: 'IntValue',\n FLOAT: 'FloatValue',\n STRING: 'StringValue',\n BOOLEAN: 'BooleanValue',\n NULL: 'NullValue',\n ENUM: 'EnumValue',\n LIST: 'ListValue',\n OBJECT: 'ObjectValue',\n OBJECT_FIELD: 'ObjectField',\n // Directives\n DIRECTIVE: 'Directive',\n // Types\n NAMED_TYPE: 'NamedType',\n LIST_TYPE: 'ListType',\n NON_NULL_TYPE: 'NonNullType',\n // Type System Definitions\n SCHEMA_DEFINITION: 'SchemaDefinition',\n OPERATION_TYPE_DEFINITION: 'OperationTypeDefinition',\n // Type Definitions\n SCALAR_TYPE_DEFINITION: 'ScalarTypeDefinition',\n OBJECT_TYPE_DEFINITION: 'ObjectTypeDefinition',\n FIELD_DEFINITION: 'FieldDefinition',\n INPUT_VALUE_DEFINITION: 'InputValueDefinition',\n INTERFACE_TYPE_DEFINITION: 'InterfaceTypeDefinition',\n UNION_TYPE_DEFINITION: 'UnionTypeDefinition',\n ENUM_TYPE_DEFINITION: 'EnumTypeDefinition',\n ENUM_VALUE_DEFINITION: 'EnumValueDefinition',\n INPUT_OBJECT_TYPE_DEFINITION: 'InputObjectTypeDefinition',\n // Directive Definitions\n DIRECTIVE_DEFINITION: 'DirectiveDefinition',\n // Type System Extensions\n SCHEMA_EXTENSION: 'SchemaExtension',\n // Type Extensions\n SCALAR_TYPE_EXTENSION: 'ScalarTypeExtension',\n OBJECT_TYPE_EXTENSION: 'ObjectTypeExtension',\n INTERFACE_TYPE_EXTENSION: 'InterfaceTypeExtension',\n UNION_TYPE_EXTENSION: 'UnionTypeExtension',\n ENUM_TYPE_EXTENSION: 'EnumTypeExtension',\n INPUT_OBJECT_TYPE_EXTENSION: 'InputObjectTypeExtension'\n});\n/**\n * The enum type representing the possible kind values of AST nodes.\n */","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * strict\n */\n\n/**\n * The set of allowed directive location values.\n */\nexport var DirectiveLocation = Object.freeze({\n // Request Definitions\n QUERY: 'QUERY',\n MUTATION: 'MUTATION',\n SUBSCRIPTION: 'SUBSCRIPTION',\n FIELD: 'FIELD',\n FRAGMENT_DEFINITION: 'FRAGMENT_DEFINITION',\n FRAGMENT_SPREAD: 'FRAGMENT_SPREAD',\n INLINE_FRAGMENT: 'INLINE_FRAGMENT',\n VARIABLE_DEFINITION: 'VARIABLE_DEFINITION',\n // Type System Definitions\n SCHEMA: 'SCHEMA',\n SCALAR: 'SCALAR',\n OBJECT: 'OBJECT',\n FIELD_DEFINITION: 'FIELD_DEFINITION',\n ARGUMENT_DEFINITION: 'ARGUMENT_DEFINITION',\n INTERFACE: 'INTERFACE',\n UNION: 'UNION',\n ENUM: 'ENUM',\n ENUM_VALUE: 'ENUM_VALUE',\n INPUT_OBJECT: 'INPUT_OBJECT',\n INPUT_FIELD_DEFINITION: 'INPUT_FIELD_DEFINITION'\n});\n/**\n * The enum type representing the directive location values.\n */","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * strict\n */\nimport inspect from '../jsutils/inspect';\nimport { Source } from './source';\nimport { syntaxError } from '../error';\nimport { createLexer, TokenKind, getTokenDesc } from './lexer';\nimport { Kind } from './kinds';\nimport { DirectiveLocation } from './directiveLocation';\n/**\n * Configuration options to control parser behavior\n */\n\n/**\n * Given a GraphQL source, parses it into a Document.\n * Throws GraphQLError if a syntax error is encountered.\n */\nexport function parse(source, options) {\n var sourceObj = typeof source === 'string' ? new Source(source) : source;\n\n if (!(sourceObj instanceof Source)) {\n throw new TypeError(\"Must provide Source. Received: \".concat(inspect(sourceObj)));\n }\n\n var lexer = createLexer(sourceObj, options || {});\n return parseDocument(lexer);\n}\n/**\n * Given a string containing a GraphQL value (ex. `[42]`), parse the AST for\n * that value.\n * Throws GraphQLError if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Values directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: valueFromAST().\n */\n\nexport function parseValue(source, options) {\n var sourceObj = typeof source === 'string' ? new Source(source) : source;\n var lexer = createLexer(sourceObj, options || {});\n expect(lexer, TokenKind.SOF);\n var value = parseValueLiteral(lexer, false);\n expect(lexer, TokenKind.EOF);\n return value;\n}\n/**\n * Given a string containing a GraphQL Type (ex. `[Int!]`), parse the AST for\n * that type.\n * Throws GraphQLError if a syntax error is encountered.\n *\n * This is useful within tools that operate upon GraphQL Types directly and\n * in isolation of complete GraphQL documents.\n *\n * Consider providing the results to the utility function: typeFromAST().\n */\n\nexport function parseType(source, options) {\n var sourceObj = typeof source === 'string' ? new Source(source) : source;\n var lexer = createLexer(sourceObj, options || {});\n expect(lexer, TokenKind.SOF);\n var type = parseTypeReference(lexer);\n expect(lexer, TokenKind.EOF);\n return type;\n}\n/**\n * Converts a name lex token into a name parse node.\n */\n\nfunction parseName(lexer) {\n var token = expect(lexer, TokenKind.NAME);\n return {\n kind: Kind.NAME,\n value: token.value,\n loc: loc(lexer, token)\n };\n} // Implements the parsing rules in the Document section.\n\n/**\n * Document : Definition+\n */\n\n\nfunction parseDocument(lexer) {\n var start = lexer.token;\n return {\n kind: Kind.DOCUMENT,\n definitions: many(lexer, TokenKind.SOF, parseDefinition, TokenKind.EOF),\n loc: loc(lexer, start)\n };\n}\n/**\n * Definition :\n * - ExecutableDefinition\n * - TypeSystemDefinition\n * - TypeSystemExtension\n */\n\n\nfunction parseDefinition(lexer) {\n if (peek(lexer, TokenKind.NAME)) {\n switch (lexer.token.value) {\n case 'query':\n case 'mutation':\n case 'subscription':\n case 'fragment':\n return parseExecutableDefinition(lexer);\n\n case 'schema':\n case 'scalar':\n case 'type':\n case 'interface':\n case 'union':\n case 'enum':\n case 'input':\n case 'directive':\n return parseTypeSystemDefinition(lexer);\n\n case 'extend':\n return parseTypeSystemExtension(lexer);\n }\n } else if (peek(lexer, TokenKind.BRACE_L)) {\n return parseExecutableDefinition(lexer);\n } else if (peekDescription(lexer)) {\n return parseTypeSystemDefinition(lexer);\n }\n\n throw unexpected(lexer);\n}\n/**\n * ExecutableDefinition :\n * - OperationDefinition\n * - FragmentDefinition\n */\n\n\nfunction parseExecutableDefinition(lexer) {\n if (peek(lexer, TokenKind.NAME)) {\n switch (lexer.token.value) {\n case 'query':\n case 'mutation':\n case 'subscription':\n return parseOperationDefinition(lexer);\n\n case 'fragment':\n return parseFragmentDefinition(lexer);\n }\n } else if (peek(lexer, TokenKind.BRACE_L)) {\n return parseOperationDefinition(lexer);\n }\n\n throw unexpected(lexer);\n} // Implements the parsing rules in the Operations section.\n\n/**\n * OperationDefinition :\n * - SelectionSet\n * - OperationType Name? VariableDefinitions? Directives? SelectionSet\n */\n\n\nfunction parseOperationDefinition(lexer) {\n var start = lexer.token;\n\n if (peek(lexer, TokenKind.BRACE_L)) {\n return {\n kind: Kind.OPERATION_DEFINITION,\n operation: 'query',\n name: undefined,\n variableDefinitions: [],\n directives: [],\n selectionSet: parseSelectionSet(lexer),\n loc: loc(lexer, start)\n };\n }\n\n var operation = parseOperationType(lexer);\n var name;\n\n if (peek(lexer, TokenKind.NAME)) {\n name = parseName(lexer);\n }\n\n return {\n kind: Kind.OPERATION_DEFINITION,\n operation: operation,\n name: name,\n variableDefinitions: parseVariableDefinitions(lexer),\n directives: parseDirectives(lexer, false),\n selectionSet: parseSelectionSet(lexer),\n loc: loc(lexer, start)\n };\n}\n/**\n * OperationType : one of query mutation subscription\n */\n\n\nfunction parseOperationType(lexer) {\n var operationToken = expect(lexer, TokenKind.NAME);\n\n switch (operationToken.value) {\n case 'query':\n return 'query';\n\n case 'mutation':\n return 'mutation';\n\n case 'subscription':\n return 'subscription';\n }\n\n throw unexpected(lexer, operationToken);\n}\n/**\n * VariableDefinitions : ( VariableDefinition+ )\n */\n\n\nfunction parseVariableDefinitions(lexer) {\n return peek(lexer, TokenKind.PAREN_L) ? many(lexer, TokenKind.PAREN_L, parseVariableDefinition, TokenKind.PAREN_R) : [];\n}\n/**\n * VariableDefinition : Variable : Type DefaultValue? Directives[Const]?\n */\n\n\nfunction parseVariableDefinition(lexer) {\n var start = lexer.token;\n\n if (lexer.options.experimentalVariableDefinitionDirectives) {\n return {\n kind: Kind.VARIABLE_DEFINITION,\n variable: parseVariable(lexer),\n type: (expect(lexer, TokenKind.COLON), parseTypeReference(lexer)),\n defaultValue: skip(lexer, TokenKind.EQUALS) ? parseValueLiteral(lexer, true) : undefined,\n directives: parseDirectives(lexer, true),\n loc: loc(lexer, start)\n };\n }\n\n return {\n kind: Kind.VARIABLE_DEFINITION,\n variable: parseVariable(lexer),\n type: (expect(lexer, TokenKind.COLON), parseTypeReference(lexer)),\n defaultValue: skip(lexer, TokenKind.EQUALS) ? parseValueLiteral(lexer, true) : undefined,\n loc: loc(lexer, start)\n };\n}\n/**\n * Variable : $ Name\n */\n\n\nfunction parseVariable(lexer) {\n var start = lexer.token;\n expect(lexer, TokenKind.DOLLAR);\n return {\n kind: Kind.VARIABLE,\n name: parseName(lexer),\n loc: loc(lexer, start)\n };\n}\n/**\n * SelectionSet : { Selection+ }\n */\n\n\nfunction parseSelectionSet(lexer) {\n var start = lexer.token;\n return {\n kind: Kind.SELECTION_SET,\n selections: many(lexer, TokenKind.BRACE_L, parseSelection, TokenKind.BRACE_R),\n loc: loc(lexer, start)\n };\n}\n/**\n * Selection :\n * - Field\n * - FragmentSpread\n * - InlineFragment\n */\n\n\nfunction parseSelection(lexer) {\n return peek(lexer, TokenKind.SPREAD) ? parseFragment(lexer) : parseField(lexer);\n}\n/**\n * Field : Alias? Name Arguments? Directives? SelectionSet?\n *\n * Alias : Name :\n */\n\n\nfunction parseField(lexer) {\n var start = lexer.token;\n var nameOrAlias = parseName(lexer);\n var alias;\n var name;\n\n if (skip(lexer, TokenKind.COLON)) {\n alias = nameOrAlias;\n name = parseName(lexer);\n } else {\n name = nameOrAlias;\n }\n\n return {\n kind: Kind.FIELD,\n alias: alias,\n name: name,\n arguments: parseArguments(lexer, false),\n directives: parseDirectives(lexer, false),\n selectionSet: peek(lexer, TokenKind.BRACE_L) ? parseSelectionSet(lexer) : undefined,\n loc: loc(lexer, start)\n };\n}\n/**\n * Arguments[Const] : ( Argument[?Const]+ )\n */\n\n\nfunction parseArguments(lexer, isConst) {\n var item = isConst ? parseConstArgument : parseArgument;\n return peek(lexer, TokenKind.PAREN_L) ? many(lexer, TokenKind.PAREN_L, item, TokenKind.PAREN_R) : [];\n}\n/**\n * Argument[Const] : Name : Value[?Const]\n */\n\n\nfunction parseArgument(lexer) {\n var start = lexer.token;\n return {\n kind: Kind.ARGUMENT,\n name: parseName(lexer),\n value: (expect(lexer, TokenKind.COLON), parseValueLiteral(lexer, false)),\n loc: loc(lexer, start)\n };\n}\n\nfunction parseConstArgument(lexer) {\n var start = lexer.token;\n return {\n kind: Kind.ARGUMENT,\n name: parseName(lexer),\n value: (expect(lexer, TokenKind.COLON), parseConstValue(lexer)),\n loc: loc(lexer, start)\n };\n} // Implements the parsing rules in the Fragments section.\n\n/**\n * Corresponds to both FragmentSpread and InlineFragment in the spec.\n *\n * FragmentSpread : ... FragmentName Directives?\n *\n * InlineFragment : ... TypeCondition? Directives? SelectionSet\n */\n\n\nfunction parseFragment(lexer) {\n var start = lexer.token;\n expect(lexer, TokenKind.SPREAD);\n\n if (peek(lexer, TokenKind.NAME) && lexer.token.value !== 'on') {\n return {\n kind: Kind.FRAGMENT_SPREAD,\n name: parseFragmentName(lexer),\n directives: parseDirectives(lexer, false),\n loc: loc(lexer, start)\n };\n }\n\n var typeCondition;\n\n if (lexer.token.value === 'on') {\n lexer.advance();\n typeCondition = parseNamedType(lexer);\n }\n\n return {\n kind: Kind.INLINE_FRAGMENT,\n typeCondition: typeCondition,\n directives: parseDirectives(lexer, false),\n selectionSet: parseSelectionSet(lexer),\n loc: loc(lexer, start)\n };\n}\n/**\n * FragmentDefinition :\n * - fragment FragmentName on TypeCondition Directives? SelectionSet\n *\n * TypeCondition : NamedType\n */\n\n\nfunction parseFragmentDefinition(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'fragment'); // Experimental support for defining variables within fragments changes\n // the grammar of FragmentDefinition:\n // - fragment FragmentName VariableDefinitions? on TypeCondition Directives? SelectionSet\n\n if (lexer.options.experimentalFragmentVariables) {\n return {\n kind: Kind.FRAGMENT_DEFINITION,\n name: parseFragmentName(lexer),\n variableDefinitions: parseVariableDefinitions(lexer),\n typeCondition: (expectKeyword(lexer, 'on'), parseNamedType(lexer)),\n directives: parseDirectives(lexer, false),\n selectionSet: parseSelectionSet(lexer),\n loc: loc(lexer, start)\n };\n }\n\n return {\n kind: Kind.FRAGMENT_DEFINITION,\n name: parseFragmentName(lexer),\n typeCondition: (expectKeyword(lexer, 'on'), parseNamedType(lexer)),\n directives: parseDirectives(lexer, false),\n selectionSet: parseSelectionSet(lexer),\n loc: loc(lexer, start)\n };\n}\n/**\n * FragmentName : Name but not `on`\n */\n\n\nfunction parseFragmentName(lexer) {\n if (lexer.token.value === 'on') {\n throw unexpected(lexer);\n }\n\n return parseName(lexer);\n} // Implements the parsing rules in the Values section.\n\n/**\n * Value[Const] :\n * - [~Const] Variable\n * - IntValue\n * - FloatValue\n * - StringValue\n * - BooleanValue\n * - NullValue\n * - EnumValue\n * - ListValue[?Const]\n * - ObjectValue[?Const]\n *\n * BooleanValue : one of `true` `false`\n *\n * NullValue : `null`\n *\n * EnumValue : Name but not `true`, `false` or `null`\n */\n\n\nfunction parseValueLiteral(lexer, isConst) {\n var token = lexer.token;\n\n switch (token.kind) {\n case TokenKind.BRACKET_L:\n return parseList(lexer, isConst);\n\n case TokenKind.BRACE_L:\n return parseObject(lexer, isConst);\n\n case TokenKind.INT:\n lexer.advance();\n return {\n kind: Kind.INT,\n value: token.value,\n loc: loc(lexer, token)\n };\n\n case TokenKind.FLOAT:\n lexer.advance();\n return {\n kind: Kind.FLOAT,\n value: token.value,\n loc: loc(lexer, token)\n };\n\n case TokenKind.STRING:\n case TokenKind.BLOCK_STRING:\n return parseStringLiteral(lexer);\n\n case TokenKind.NAME:\n if (token.value === 'true' || token.value === 'false') {\n lexer.advance();\n return {\n kind: Kind.BOOLEAN,\n value: token.value === 'true',\n loc: loc(lexer, token)\n };\n } else if (token.value === 'null') {\n lexer.advance();\n return {\n kind: Kind.NULL,\n loc: loc(lexer, token)\n };\n }\n\n lexer.advance();\n return {\n kind: Kind.ENUM,\n value: token.value,\n loc: loc(lexer, token)\n };\n\n case TokenKind.DOLLAR:\n if (!isConst) {\n return parseVariable(lexer);\n }\n\n break;\n }\n\n throw unexpected(lexer);\n}\n\nfunction parseStringLiteral(lexer) {\n var token = lexer.token;\n lexer.advance();\n return {\n kind: Kind.STRING,\n value: token.value,\n block: token.kind === TokenKind.BLOCK_STRING,\n loc: loc(lexer, token)\n };\n}\n\nexport function parseConstValue(lexer) {\n return parseValueLiteral(lexer, true);\n}\n\nfunction parseValueValue(lexer) {\n return parseValueLiteral(lexer, false);\n}\n/**\n * ListValue[Const] :\n * - [ ]\n * - [ Value[?Const]+ ]\n */\n\n\nfunction parseList(lexer, isConst) {\n var start = lexer.token;\n var item = isConst ? parseConstValue : parseValueValue;\n return {\n kind: Kind.LIST,\n values: any(lexer, TokenKind.BRACKET_L, item, TokenKind.BRACKET_R),\n loc: loc(lexer, start)\n };\n}\n/**\n * ObjectValue[Const] :\n * - { }\n * - { ObjectField[?Const]+ }\n */\n\n\nfunction parseObject(lexer, isConst) {\n var start = lexer.token;\n expect(lexer, TokenKind.BRACE_L);\n var fields = [];\n\n while (!skip(lexer, TokenKind.BRACE_R)) {\n fields.push(parseObjectField(lexer, isConst));\n }\n\n return {\n kind: Kind.OBJECT,\n fields: fields,\n loc: loc(lexer, start)\n };\n}\n/**\n * ObjectField[Const] : Name : Value[?Const]\n */\n\n\nfunction parseObjectField(lexer, isConst) {\n var start = lexer.token;\n return {\n kind: Kind.OBJECT_FIELD,\n name: parseName(lexer),\n value: (expect(lexer, TokenKind.COLON), parseValueLiteral(lexer, isConst)),\n loc: loc(lexer, start)\n };\n} // Implements the parsing rules in the Directives section.\n\n/**\n * Directives[Const] : Directive[?Const]+\n */\n\n\nfunction parseDirectives(lexer, isConst) {\n var directives = [];\n\n while (peek(lexer, TokenKind.AT)) {\n directives.push(parseDirective(lexer, isConst));\n }\n\n return directives;\n}\n/**\n * Directive[Const] : @ Name Arguments[?Const]?\n */\n\n\nfunction parseDirective(lexer, isConst) {\n var start = lexer.token;\n expect(lexer, TokenKind.AT);\n return {\n kind: Kind.DIRECTIVE,\n name: parseName(lexer),\n arguments: parseArguments(lexer, isConst),\n loc: loc(lexer, start)\n };\n} // Implements the parsing rules in the Types section.\n\n/**\n * Type :\n * - NamedType\n * - ListType\n * - NonNullType\n */\n\n\nexport function parseTypeReference(lexer) {\n var start = lexer.token;\n var type;\n\n if (skip(lexer, TokenKind.BRACKET_L)) {\n type = parseTypeReference(lexer);\n expect(lexer, TokenKind.BRACKET_R);\n type = {\n kind: Kind.LIST_TYPE,\n type: type,\n loc: loc(lexer, start)\n };\n } else {\n type = parseNamedType(lexer);\n }\n\n if (skip(lexer, TokenKind.BANG)) {\n return {\n kind: Kind.NON_NULL_TYPE,\n type: type,\n loc: loc(lexer, start)\n };\n }\n\n return type;\n}\n/**\n * NamedType : Name\n */\n\nexport function parseNamedType(lexer) {\n var start = lexer.token;\n return {\n kind: Kind.NAMED_TYPE,\n name: parseName(lexer),\n loc: loc(lexer, start)\n };\n} // Implements the parsing rules in the Type Definition section.\n\n/**\n * TypeSystemDefinition :\n * - SchemaDefinition\n * - TypeDefinition\n * - DirectiveDefinition\n *\n * TypeDefinition :\n * - ScalarTypeDefinition\n * - ObjectTypeDefinition\n * - InterfaceTypeDefinition\n * - UnionTypeDefinition\n * - EnumTypeDefinition\n * - InputObjectTypeDefinition\n */\n\nfunction parseTypeSystemDefinition(lexer) {\n // Many definitions begin with a description and require a lookahead.\n var keywordToken = peekDescription(lexer) ? lexer.lookahead() : lexer.token;\n\n if (keywordToken.kind === TokenKind.NAME) {\n switch (keywordToken.value) {\n case 'schema':\n return parseSchemaDefinition(lexer);\n\n case 'scalar':\n return parseScalarTypeDefinition(lexer);\n\n case 'type':\n return parseObjectTypeDefinition(lexer);\n\n case 'interface':\n return parseInterfaceTypeDefinition(lexer);\n\n case 'union':\n return parseUnionTypeDefinition(lexer);\n\n case 'enum':\n return parseEnumTypeDefinition(lexer);\n\n case 'input':\n return parseInputObjectTypeDefinition(lexer);\n\n case 'directive':\n return parseDirectiveDefinition(lexer);\n }\n }\n\n throw unexpected(lexer, keywordToken);\n}\n\nfunction peekDescription(lexer) {\n return peek(lexer, TokenKind.STRING) || peek(lexer, TokenKind.BLOCK_STRING);\n}\n/**\n * Description : StringValue\n */\n\n\nfunction parseDescription(lexer) {\n if (peekDescription(lexer)) {\n return parseStringLiteral(lexer);\n }\n}\n/**\n * SchemaDefinition : schema Directives[Const]? { OperationTypeDefinition+ }\n */\n\n\nfunction parseSchemaDefinition(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'schema');\n var directives = parseDirectives(lexer, true);\n var operationTypes = many(lexer, TokenKind.BRACE_L, parseOperationTypeDefinition, TokenKind.BRACE_R);\n return {\n kind: Kind.SCHEMA_DEFINITION,\n directives: directives,\n operationTypes: operationTypes,\n loc: loc(lexer, start)\n };\n}\n/**\n * OperationTypeDefinition : OperationType : NamedType\n */\n\n\nfunction parseOperationTypeDefinition(lexer) {\n var start = lexer.token;\n var operation = parseOperationType(lexer);\n expect(lexer, TokenKind.COLON);\n var type = parseNamedType(lexer);\n return {\n kind: Kind.OPERATION_TYPE_DEFINITION,\n operation: operation,\n type: type,\n loc: loc(lexer, start)\n };\n}\n/**\n * ScalarTypeDefinition : Description? scalar Name Directives[Const]?\n */\n\n\nfunction parseScalarTypeDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n expectKeyword(lexer, 'scalar');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n return {\n kind: Kind.SCALAR_TYPE_DEFINITION,\n description: description,\n name: name,\n directives: directives,\n loc: loc(lexer, start)\n };\n}\n/**\n * ObjectTypeDefinition :\n * Description?\n * type Name ImplementsInterfaces? Directives[Const]? FieldsDefinition?\n */\n\n\nfunction parseObjectTypeDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n expectKeyword(lexer, 'type');\n var name = parseName(lexer);\n var interfaces = parseImplementsInterfaces(lexer);\n var directives = parseDirectives(lexer, true);\n var fields = parseFieldsDefinition(lexer);\n return {\n kind: Kind.OBJECT_TYPE_DEFINITION,\n description: description,\n name: name,\n interfaces: interfaces,\n directives: directives,\n fields: fields,\n loc: loc(lexer, start)\n };\n}\n/**\n * ImplementsInterfaces :\n * - implements `&`? NamedType\n * - ImplementsInterfaces & NamedType\n */\n\n\nfunction parseImplementsInterfaces(lexer) {\n var types = [];\n\n if (lexer.token.value === 'implements') {\n lexer.advance(); // Optional leading ampersand\n\n skip(lexer, TokenKind.AMP);\n\n do {\n types.push(parseNamedType(lexer));\n } while (skip(lexer, TokenKind.AMP) || // Legacy support for the SDL?\n lexer.options.allowLegacySDLImplementsInterfaces && peek(lexer, TokenKind.NAME));\n }\n\n return types;\n}\n/**\n * FieldsDefinition : { FieldDefinition+ }\n */\n\n\nfunction parseFieldsDefinition(lexer) {\n // Legacy support for the SDL?\n if (lexer.options.allowLegacySDLEmptyFields && peek(lexer, TokenKind.BRACE_L) && lexer.lookahead().kind === TokenKind.BRACE_R) {\n lexer.advance();\n lexer.advance();\n return [];\n }\n\n return peek(lexer, TokenKind.BRACE_L) ? many(lexer, TokenKind.BRACE_L, parseFieldDefinition, TokenKind.BRACE_R) : [];\n}\n/**\n * FieldDefinition :\n * - Description? Name ArgumentsDefinition? : Type Directives[Const]?\n */\n\n\nfunction parseFieldDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n var name = parseName(lexer);\n var args = parseArgumentDefs(lexer);\n expect(lexer, TokenKind.COLON);\n var type = parseTypeReference(lexer);\n var directives = parseDirectives(lexer, true);\n return {\n kind: Kind.FIELD_DEFINITION,\n description: description,\n name: name,\n arguments: args,\n type: type,\n directives: directives,\n loc: loc(lexer, start)\n };\n}\n/**\n * ArgumentsDefinition : ( InputValueDefinition+ )\n */\n\n\nfunction parseArgumentDefs(lexer) {\n if (!peek(lexer, TokenKind.PAREN_L)) {\n return [];\n }\n\n return many(lexer, TokenKind.PAREN_L, parseInputValueDef, TokenKind.PAREN_R);\n}\n/**\n * InputValueDefinition :\n * - Description? Name : Type DefaultValue? Directives[Const]?\n */\n\n\nfunction parseInputValueDef(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n var name = parseName(lexer);\n expect(lexer, TokenKind.COLON);\n var type = parseTypeReference(lexer);\n var defaultValue;\n\n if (skip(lexer, TokenKind.EQUALS)) {\n defaultValue = parseConstValue(lexer);\n }\n\n var directives = parseDirectives(lexer, true);\n return {\n kind: Kind.INPUT_VALUE_DEFINITION,\n description: description,\n name: name,\n type: type,\n defaultValue: defaultValue,\n directives: directives,\n loc: loc(lexer, start)\n };\n}\n/**\n * InterfaceTypeDefinition :\n * - Description? interface Name Directives[Const]? FieldsDefinition?\n */\n\n\nfunction parseInterfaceTypeDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n expectKeyword(lexer, 'interface');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var fields = parseFieldsDefinition(lexer);\n return {\n kind: Kind.INTERFACE_TYPE_DEFINITION,\n description: description,\n name: name,\n directives: directives,\n fields: fields,\n loc: loc(lexer, start)\n };\n}\n/**\n * UnionTypeDefinition :\n * - Description? union Name Directives[Const]? UnionMemberTypes?\n */\n\n\nfunction parseUnionTypeDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n expectKeyword(lexer, 'union');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var types = parseUnionMemberTypes(lexer);\n return {\n kind: Kind.UNION_TYPE_DEFINITION,\n description: description,\n name: name,\n directives: directives,\n types: types,\n loc: loc(lexer, start)\n };\n}\n/**\n * UnionMemberTypes :\n * - = `|`? NamedType\n * - UnionMemberTypes | NamedType\n */\n\n\nfunction parseUnionMemberTypes(lexer) {\n var types = [];\n\n if (skip(lexer, TokenKind.EQUALS)) {\n // Optional leading pipe\n skip(lexer, TokenKind.PIPE);\n\n do {\n types.push(parseNamedType(lexer));\n } while (skip(lexer, TokenKind.PIPE));\n }\n\n return types;\n}\n/**\n * EnumTypeDefinition :\n * - Description? enum Name Directives[Const]? EnumValuesDefinition?\n */\n\n\nfunction parseEnumTypeDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n expectKeyword(lexer, 'enum');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var values = parseEnumValuesDefinition(lexer);\n return {\n kind: Kind.ENUM_TYPE_DEFINITION,\n description: description,\n name: name,\n directives: directives,\n values: values,\n loc: loc(lexer, start)\n };\n}\n/**\n * EnumValuesDefinition : { EnumValueDefinition+ }\n */\n\n\nfunction parseEnumValuesDefinition(lexer) {\n return peek(lexer, TokenKind.BRACE_L) ? many(lexer, TokenKind.BRACE_L, parseEnumValueDefinition, TokenKind.BRACE_R) : [];\n}\n/**\n * EnumValueDefinition : Description? EnumValue Directives[Const]?\n *\n * EnumValue : Name\n */\n\n\nfunction parseEnumValueDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n return {\n kind: Kind.ENUM_VALUE_DEFINITION,\n description: description,\n name: name,\n directives: directives,\n loc: loc(lexer, start)\n };\n}\n/**\n * InputObjectTypeDefinition :\n * - Description? input Name Directives[Const]? InputFieldsDefinition?\n */\n\n\nfunction parseInputObjectTypeDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n expectKeyword(lexer, 'input');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var fields = parseInputFieldsDefinition(lexer);\n return {\n kind: Kind.INPUT_OBJECT_TYPE_DEFINITION,\n description: description,\n name: name,\n directives: directives,\n fields: fields,\n loc: loc(lexer, start)\n };\n}\n/**\n * InputFieldsDefinition : { InputValueDefinition+ }\n */\n\n\nfunction parseInputFieldsDefinition(lexer) {\n return peek(lexer, TokenKind.BRACE_L) ? many(lexer, TokenKind.BRACE_L, parseInputValueDef, TokenKind.BRACE_R) : [];\n}\n/**\n * TypeSystemExtension :\n * - SchemaExtension\n * - TypeExtension\n *\n * TypeExtension :\n * - ScalarTypeExtension\n * - ObjectTypeExtension\n * - InterfaceTypeExtension\n * - UnionTypeExtension\n * - EnumTypeExtension\n * - InputObjectTypeDefinition\n */\n\n\nfunction parseTypeSystemExtension(lexer) {\n var keywordToken = lexer.lookahead();\n\n if (keywordToken.kind === TokenKind.NAME) {\n switch (keywordToken.value) {\n case 'schema':\n return parseSchemaExtension(lexer);\n\n case 'scalar':\n return parseScalarTypeExtension(lexer);\n\n case 'type':\n return parseObjectTypeExtension(lexer);\n\n case 'interface':\n return parseInterfaceTypeExtension(lexer);\n\n case 'union':\n return parseUnionTypeExtension(lexer);\n\n case 'enum':\n return parseEnumTypeExtension(lexer);\n\n case 'input':\n return parseInputObjectTypeExtension(lexer);\n }\n }\n\n throw unexpected(lexer, keywordToken);\n}\n/**\n * SchemaExtension :\n * - extend schema Directives[Const]? { OperationTypeDefinition+ }\n * - extend schema Directives[Const]\n */\n\n\nfunction parseSchemaExtension(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'extend');\n expectKeyword(lexer, 'schema');\n var directives = parseDirectives(lexer, true);\n var operationTypes = peek(lexer, TokenKind.BRACE_L) ? many(lexer, TokenKind.BRACE_L, parseOperationTypeDefinition, TokenKind.BRACE_R) : [];\n\n if (directives.length === 0 && operationTypes.length === 0) {\n throw unexpected(lexer);\n }\n\n return {\n kind: Kind.SCHEMA_EXTENSION,\n directives: directives,\n operationTypes: operationTypes,\n loc: loc(lexer, start)\n };\n}\n/**\n * ScalarTypeExtension :\n * - extend scalar Name Directives[Const]\n */\n\n\nfunction parseScalarTypeExtension(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'extend');\n expectKeyword(lexer, 'scalar');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n\n if (directives.length === 0) {\n throw unexpected(lexer);\n }\n\n return {\n kind: Kind.SCALAR_TYPE_EXTENSION,\n name: name,\n directives: directives,\n loc: loc(lexer, start)\n };\n}\n/**\n * ObjectTypeExtension :\n * - extend type Name ImplementsInterfaces? Directives[Const]? FieldsDefinition\n * - extend type Name ImplementsInterfaces? Directives[Const]\n * - extend type Name ImplementsInterfaces\n */\n\n\nfunction parseObjectTypeExtension(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'extend');\n expectKeyword(lexer, 'type');\n var name = parseName(lexer);\n var interfaces = parseImplementsInterfaces(lexer);\n var directives = parseDirectives(lexer, true);\n var fields = parseFieldsDefinition(lexer);\n\n if (interfaces.length === 0 && directives.length === 0 && fields.length === 0) {\n throw unexpected(lexer);\n }\n\n return {\n kind: Kind.OBJECT_TYPE_EXTENSION,\n name: name,\n interfaces: interfaces,\n directives: directives,\n fields: fields,\n loc: loc(lexer, start)\n };\n}\n/**\n * InterfaceTypeExtension :\n * - extend interface Name Directives[Const]? FieldsDefinition\n * - extend interface Name Directives[Const]\n */\n\n\nfunction parseInterfaceTypeExtension(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'extend');\n expectKeyword(lexer, 'interface');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var fields = parseFieldsDefinition(lexer);\n\n if (directives.length === 0 && fields.length === 0) {\n throw unexpected(lexer);\n }\n\n return {\n kind: Kind.INTERFACE_TYPE_EXTENSION,\n name: name,\n directives: directives,\n fields: fields,\n loc: loc(lexer, start)\n };\n}\n/**\n * UnionTypeExtension :\n * - extend union Name Directives[Const]? UnionMemberTypes\n * - extend union Name Directives[Const]\n */\n\n\nfunction parseUnionTypeExtension(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'extend');\n expectKeyword(lexer, 'union');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var types = parseUnionMemberTypes(lexer);\n\n if (directives.length === 0 && types.length === 0) {\n throw unexpected(lexer);\n }\n\n return {\n kind: Kind.UNION_TYPE_EXTENSION,\n name: name,\n directives: directives,\n types: types,\n loc: loc(lexer, start)\n };\n}\n/**\n * EnumTypeExtension :\n * - extend enum Name Directives[Const]? EnumValuesDefinition\n * - extend enum Name Directives[Const]\n */\n\n\nfunction parseEnumTypeExtension(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'extend');\n expectKeyword(lexer, 'enum');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var values = parseEnumValuesDefinition(lexer);\n\n if (directives.length === 0 && values.length === 0) {\n throw unexpected(lexer);\n }\n\n return {\n kind: Kind.ENUM_TYPE_EXTENSION,\n name: name,\n directives: directives,\n values: values,\n loc: loc(lexer, start)\n };\n}\n/**\n * InputObjectTypeExtension :\n * - extend input Name Directives[Const]? InputFieldsDefinition\n * - extend input Name Directives[Const]\n */\n\n\nfunction parseInputObjectTypeExtension(lexer) {\n var start = lexer.token;\n expectKeyword(lexer, 'extend');\n expectKeyword(lexer, 'input');\n var name = parseName(lexer);\n var directives = parseDirectives(lexer, true);\n var fields = parseInputFieldsDefinition(lexer);\n\n if (directives.length === 0 && fields.length === 0) {\n throw unexpected(lexer);\n }\n\n return {\n kind: Kind.INPUT_OBJECT_TYPE_EXTENSION,\n name: name,\n directives: directives,\n fields: fields,\n loc: loc(lexer, start)\n };\n}\n/**\n * DirectiveDefinition :\n * - Description? directive @ Name ArgumentsDefinition? on DirectiveLocations\n */\n\n\nfunction parseDirectiveDefinition(lexer) {\n var start = lexer.token;\n var description = parseDescription(lexer);\n expectKeyword(lexer, 'directive');\n expect(lexer, TokenKind.AT);\n var name = parseName(lexer);\n var args = parseArgumentDefs(lexer);\n expectKeyword(lexer, 'on');\n var locations = parseDirectiveLocations(lexer);\n return {\n kind: Kind.DIRECTIVE_DEFINITION,\n description: description,\n name: name,\n arguments: args,\n locations: locations,\n loc: loc(lexer, start)\n };\n}\n/**\n * DirectiveLocations :\n * - `|`? DirectiveLocation\n * - DirectiveLocations | DirectiveLocation\n */\n\n\nfunction parseDirectiveLocations(lexer) {\n // Optional leading pipe\n skip(lexer, TokenKind.PIPE);\n var locations = [];\n\n do {\n locations.push(parseDirectiveLocation(lexer));\n } while (skip(lexer, TokenKind.PIPE));\n\n return locations;\n}\n/*\n * DirectiveLocation :\n * - ExecutableDirectiveLocation\n * - TypeSystemDirectiveLocation\n *\n * ExecutableDirectiveLocation : one of\n * `QUERY`\n * `MUTATION`\n * `SUBSCRIPTION`\n * `FIELD`\n * `FRAGMENT_DEFINITION`\n * `FRAGMENT_SPREAD`\n * `INLINE_FRAGMENT`\n *\n * TypeSystemDirectiveLocation : one of\n * `SCHEMA`\n * `SCALAR`\n * `OBJECT`\n * `FIELD_DEFINITION`\n * `ARGUMENT_DEFINITION`\n * `INTERFACE`\n * `UNION`\n * `ENUM`\n * `ENUM_VALUE`\n * `INPUT_OBJECT`\n * `INPUT_FIELD_DEFINITION`\n */\n\n\nfunction parseDirectiveLocation(lexer) {\n var start = lexer.token;\n var name = parseName(lexer);\n\n if (DirectiveLocation.hasOwnProperty(name.value)) {\n return name;\n }\n\n throw unexpected(lexer, start);\n} // Core parsing utility functions\n\n/**\n * Returns a location object, used to identify the place in\n * the source that created a given parsed object.\n */\n\n\nfunction loc(lexer, startToken) {\n if (!lexer.options.noLocation) {\n return new Loc(startToken, lexer.lastToken, lexer.source);\n }\n}\n\nfunction Loc(startToken, endToken, source) {\n this.start = startToken.start;\n this.end = endToken.end;\n this.startToken = startToken;\n this.endToken = endToken;\n this.source = source;\n} // Print a simplified form when appearing in JSON/util.inspect.\n\n\nLoc.prototype.toJSON = Loc.prototype.inspect = function toJSON() {\n return {\n start: this.start,\n end: this.end\n };\n};\n/**\n * Determines if the next token is of a given kind\n */\n\n\nfunction peek(lexer, kind) {\n return lexer.token.kind === kind;\n}\n/**\n * If the next token is of the given kind, return true after advancing\n * the lexer. Otherwise, do not change the parser state and return false.\n */\n\n\nfunction skip(lexer, kind) {\n var match = lexer.token.kind === kind;\n\n if (match) {\n lexer.advance();\n }\n\n return match;\n}\n/**\n * If the next token is of the given kind, return that token after advancing\n * the lexer. Otherwise, do not change the parser state and throw an error.\n */\n\n\nfunction expect(lexer, kind) {\n var token = lexer.token;\n\n if (token.kind === kind) {\n lexer.advance();\n return token;\n }\n\n throw syntaxError(lexer.source, token.start, \"Expected \".concat(kind, \", found \").concat(getTokenDesc(token)));\n}\n/**\n * If the next token is a keyword with the given value, return that token after\n * advancing the lexer. Otherwise, do not change the parser state and return\n * false.\n */\n\n\nfunction expectKeyword(lexer, value) {\n var token = lexer.token;\n\n if (token.kind === TokenKind.NAME && token.value === value) {\n lexer.advance();\n return token;\n }\n\n throw syntaxError(lexer.source, token.start, \"Expected \\\"\".concat(value, \"\\\", found \").concat(getTokenDesc(token)));\n}\n/**\n * Helper function for creating an error when an unexpected lexed token\n * is encountered.\n */\n\n\nfunction unexpected(lexer, atToken) {\n var token = atToken || lexer.token;\n return syntaxError(lexer.source, token.start, \"Unexpected \".concat(getTokenDesc(token)));\n}\n/**\n * Returns a possibly empty list of parse nodes, determined by\n * the parseFn. This list begins with a lex token of openKind\n * and ends with a lex token of closeKind. Advances the parser\n * to the next lex token after the closing token.\n */\n\n\nfunction any(lexer, openKind, parseFn, closeKind) {\n expect(lexer, openKind);\n var nodes = [];\n\n while (!skip(lexer, closeKind)) {\n nodes.push(parseFn(lexer));\n }\n\n return nodes;\n}\n/**\n * Returns a non-empty list of parse nodes, determined by\n * the parseFn. This list begins with a lex token of openKind\n * and ends with a lex token of closeKind. Advances the parser\n * to the next lex token after the closing token.\n */\n\n\nfunction many(lexer, openKind, parseFn, closeKind) {\n expect(lexer, openKind);\n var nodes = [parseFn(lexer)];\n\n while (!skip(lexer, closeKind)) {\n nodes.push(parseFn(lexer));\n }\n\n return nodes;\n}","var __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nimport { ConsoleLogger as Logger } from '@aws-amplify/core';\nvar logger = new Logger('AbstractPubSubProvider');\nvar AbstractPubSubProvider = /** @class */ (function () {\n function AbstractPubSubProvider(options) {\n if (options === void 0) { options = {}; }\n this._config = options;\n }\n AbstractPubSubProvider.prototype.configure = function (config) {\n if (config === void 0) { config = {}; }\n this._config = __assign(__assign({}, config), this._config);\n logger.debug(\"configure \" + this.getProviderName(), this._config);\n return this.options;\n };\n AbstractPubSubProvider.prototype.getCategory = function () {\n return 'PubSub';\n };\n Object.defineProperty(AbstractPubSubProvider.prototype, \"options\", {\n get: function () {\n return __assign({}, this._config);\n },\n enumerable: true,\n configurable: true\n });\n return AbstractPubSubProvider;\n}());\nexport { AbstractPubSubProvider };\n//# sourceMappingURL=PubSubProvider.js.map","/*******************************************************************************\n * Copyright (c) 2013 IBM Corp.\n *\n * All rights reserved. This program and the accompanying materials\n * are made available under the terms of the Eclipse Public License v1.0\n * and Eclipse Distribution License v1.0 which accompany this distribution.\n *\n * The Eclipse Public License is available at\n * http://www.eclipse.org/legal/epl-v10.html\n * and the Eclipse Distribution License is available at\n * http://www.eclipse.org/org/documents/edl-v10.php.\n *\n * Contributors:\n * Andrew Banks - initial API and implementation and initial documentation\n *******************************************************************************/\n\n\n// Only expose a single object name in the global namespace.\n// Everything must go through this module. Global Paho module\n// only has a single public function, client, which returns\n// a Paho client object given connection details.\n\n/**\n * Send and receive messages using web browsers.\n * \n * This programming interface lets a JavaScript client application use the MQTT V3.1 or\n * V3.1.1 protocol to connect to an MQTT-supporting messaging server.\n *\n * The function supported includes:\n *
\n * - Connecting to and disconnecting from a server. The server is identified by its host name and port number.\n *
- Specifying options that relate to the communications link with the server,\n * for example the frequency of keep-alive heartbeats, and whether SSL/TLS is required.\n *
- Subscribing to and receiving messages from MQTT Topics.\n *
- Publishing messages to MQTT Topics.\n *
\n * \n * The API consists of two main objects:\n *
\n * - {@link Paho.Client}
\n * - This contains methods that provide the functionality of the API,\n * including provision of callbacks that notify the application when a message\n * arrives from or is delivered to the messaging server,\n * or when the status of its connection to the messaging server changes.
\n * - {@link Paho.Message}
\n * - This encapsulates the payload of the message along with various attributes\n * associated with its delivery, in particular the destination to which it has\n * been (or is about to be) sent.
\n *
\n * \n * The programming interface validates parameters passed to it, and will throw\n * an Error containing an error message intended for developer use, if it detects\n * an error with any parameter.\n *
\n * Example:\n *\n * \nvar client = new Paho.MQTT.Client(location.hostname, Number(location.port), \"clientId\");\nclient.onConnectionLost = onConnectionLost;\nclient.onMessageArrived = onMessageArrived;\nclient.connect({onSuccess:onConnect});\n\nfunction onConnect() {\n // Once a connection has been made, make a subscription and send a message.\n console.log(\"onConnect\");\n client.subscribe(\"/World\");\n var message = new Paho.MQTT.Message(\"Hello\");\n message.destinationName = \"/World\";\n client.send(message);\n};\nfunction onConnectionLost(responseObject) {\n if (responseObject.errorCode !== 0)\n\tconsole.log(\"onConnectionLost:\"+responseObject.errorMessage);\n};\nfunction onMessageArrived(message) {\n console.log(\"onMessageArrived:\"+message.payloadString);\n client.disconnect();\n};\n * \n\t * The send, subscribe and unsubscribe methods are implemented as asynchronous JavaScript methods\n\t * (even though the underlying protocol exchange might be synchronous in nature).\n\t * This means they signal their completion by calling back to the application,\n\t * via Success or Failure callback functions provided by the application on the method in question.\n\t * Such callbacks are called at most once per method invocation and do not persist beyond the lifetime\n\t * of the script that made the invocation.\n\t *
\n\t * In contrast there are some callback functions, most notably onMessageArrived,\n\t * that are defined on the {@link Paho.Client} object.\n\t * These may get called multiple times, and aren't directly related to specific method invocations made by the client.\n\t *\n\t * @name Paho.Client\n\t *\n\t * @constructor\n\t *\n\t * @param {string} host - the address of the messaging server, as a fully qualified WebSocket URI, as a DNS name or dotted decimal IP address.\n\t * @param {number} port - the port number to connect to - only required if host is not a URI\n\t * @param {string} path - the path on the host to connect to - only used if host is not a URI. Default: '/mqtt'.\n\t * @param {string} clientId - the Messaging client identifier, between 1 and 23 characters in length.\n\t *\n\t * @property {string} host - read only the server's DNS hostname or dotted decimal IP address.\n\t * @property {number} port - read only the server's port.\n\t * @property {string} path - read only the server's path.\n\t * @property {string} clientId - read only used when connecting to the server.\n\t * @property {function} onConnectionLost - called when a connection has been lost.\n\t * after a connect() method has succeeded.\n\t * Establish the call back used when a connection has been lost. The connection may be\n\t * lost because the client initiates a disconnect or because the server or network\n\t * cause the client to be disconnected. The disconnect call back may be called without\n\t * the connectionComplete call back being invoked if, for example the client fails to\n\t * connect.\n\t * A single response object parameter is passed to the onConnectionLost callback containing the following fields:\n\t *
\n\t * - errorCode\n\t *
- errorMessage\n\t *
\n\t * @property {function} onMessageDelivered - called when a message has been delivered.\n\t * All processing that this Client will ever do has been completed. So, for example,\n\t * in the case of a Qos=2 message sent by this client, the PubComp flow has been received from the server\n\t * and the message has been removed from persistent storage before this callback is invoked.\n\t * Parameters passed to the onMessageDelivered callback are:\n\t * \n\t * - {@link Paho.Message} that was delivered.\n\t *
\n\t * @property {function} onMessageArrived - called when a message has arrived in this Paho.client.\n\t * Parameters passed to the onMessageArrived callback are:\n\t * \n\t * - {@link Paho.Message} that has arrived.\n\t *
\n\t * @property {function} onConnected - called when a connection is successfully made to the server.\n\t * after a connect() method.\n\t * Parameters passed to the onConnected callback are:\n\t * \n\t * - reconnect (boolean) - If true, the connection was the result of a reconnect.
\n\t * - URI (string) - The URI used to connect to the server.
\n\t *
\n\t * @property {boolean} disconnectedPublishing - if set, will enable disconnected publishing in\n\t * in the event that the connection to the server is lost.\n\t * @property {number} disconnectedBufferSize - Used to set the maximum number of messages that the disconnected\n\t * buffer will hold before rejecting new messages. Default size: 5000 messages\n\t * @property {function} trace - called whenever trace is called. TODO\n\t */\n\t\tvar Client = function (host, port, path, clientId) {\n\n\t\t\tvar uri;\n\n\t\t\tif (typeof host !== \"string\")\n\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof host, \"host\"]));\n\n\t\t\tif (arguments.length == 2) {\n\t\t\t// host: must be full ws:// uri\n\t\t\t// port: clientId\n\t\t\t\tclientId = port;\n\t\t\t\turi = host;\n\t\t\t\tvar match = uri.match(/^(wss?):\\/\\/((\\[(.+)\\])|([^\\/]+?))(:(\\d+))?(\\/.*)$/);\n\t\t\t\tif (match) {\n\t\t\t\t\thost = match[4]||match[2];\n\t\t\t\t\tport = parseInt(match[7]);\n\t\t\t\t\tpath = match[8];\n\t\t\t\t} else {\n\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT,[host,\"host\"]));\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tif (arguments.length == 3) {\n\t\t\t\t\tclientId = path;\n\t\t\t\t\tpath = \"/mqtt\";\n\t\t\t\t}\n\t\t\t\tif (typeof port !== \"number\" || port < 0)\n\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof port, \"port\"]));\n\t\t\t\tif (typeof path !== \"string\")\n\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof path, \"path\"]));\n\n\t\t\t\tvar ipv6AddSBracket = (host.indexOf(\":\") !== -1 && host.slice(0,1) !== \"[\" && host.slice(-1) !== \"]\");\n\t\t\t\turi = \"ws://\"+(ipv6AddSBracket?\"[\"+host+\"]\":host)+\":\"+port+path;\n\t\t\t}\n\n\t\t\tvar clientIdLength = 0;\n\t\t\tfor (var i = 0; i 65535)\n\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [clientId, \"clientId\"]));\n\n\t\t\tvar client = new ClientImpl(uri, host, port, path, clientId);\n\n\t\t\t//Public Properties\n\t\t\tObject.defineProperties(this,{\n\t\t\t\t\"host\":{\n\t\t\t\t\tget: function() { return host; },\n\t\t\t\t\tset: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }\n\t\t\t\t},\n\t\t\t\t\"port\":{\n\t\t\t\t\tget: function() { return port; },\n\t\t\t\t\tset: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }\n\t\t\t\t},\n\t\t\t\t\"path\":{\n\t\t\t\t\tget: function() { return path; },\n\t\t\t\t\tset: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }\n\t\t\t\t},\n\t\t\t\t\"uri\":{\n\t\t\t\t\tget: function() { return uri; },\n\t\t\t\t\tset: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }\n\t\t\t\t},\n\t\t\t\t\"clientId\":{\n\t\t\t\t\tget: function() { return client.clientId; },\n\t\t\t\t\tset: function() { throw new Error(format(ERROR.UNSUPPORTED_OPERATION)); }\n\t\t\t\t},\n\t\t\t\t\"onConnected\":{\n\t\t\t\t\tget: function() { return client.onConnected; },\n\t\t\t\t\tset: function(newOnConnected) {\n\t\t\t\t\t\tif (typeof newOnConnected === \"function\")\n\t\t\t\t\t\t\tclient.onConnected = newOnConnected;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof newOnConnected, \"onConnected\"]));\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"disconnectedPublishing\":{\n\t\t\t\t\tget: function() { return client.disconnectedPublishing; },\n\t\t\t\t\tset: function(newDisconnectedPublishing) {\n\t\t\t\t\t\tclient.disconnectedPublishing = newDisconnectedPublishing;\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"disconnectedBufferSize\":{\n\t\t\t\t\tget: function() { return client.disconnectedBufferSize; },\n\t\t\t\t\tset: function(newDisconnectedBufferSize) {\n\t\t\t\t\t\tclient.disconnectedBufferSize = newDisconnectedBufferSize;\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"onConnectionLost\":{\n\t\t\t\t\tget: function() { return client.onConnectionLost; },\n\t\t\t\t\tset: function(newOnConnectionLost) {\n\t\t\t\t\t\tif (typeof newOnConnectionLost === \"function\")\n\t\t\t\t\t\t\tclient.onConnectionLost = newOnConnectionLost;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof newOnConnectionLost, \"onConnectionLost\"]));\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"onMessageDelivered\":{\n\t\t\t\t\tget: function() { return client.onMessageDelivered; },\n\t\t\t\t\tset: function(newOnMessageDelivered) {\n\t\t\t\t\t\tif (typeof newOnMessageDelivered === \"function\")\n\t\t\t\t\t\t\tclient.onMessageDelivered = newOnMessageDelivered;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof newOnMessageDelivered, \"onMessageDelivered\"]));\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"onMessageArrived\":{\n\t\t\t\t\tget: function() { return client.onMessageArrived; },\n\t\t\t\t\tset: function(newOnMessageArrived) {\n\t\t\t\t\t\tif (typeof newOnMessageArrived === \"function\")\n\t\t\t\t\t\t\tclient.onMessageArrived = newOnMessageArrived;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof newOnMessageArrived, \"onMessageArrived\"]));\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"trace\":{\n\t\t\t\t\tget: function() { return client.traceFunction; },\n\t\t\t\t\tset: function(trace) {\n\t\t\t\t\t\tif(typeof trace === \"function\"){\n\t\t\t\t\t\t\tclient.traceFunction = trace;\n\t\t\t\t\t\t}else{\n\t\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof trace, \"onTrace\"]));\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t});\n\n\t\t\t/**\n\t\t * Connect this Messaging client to its server.\n\t\t *\n\t\t * @name Paho.Client#connect\n\t\t * @function\n\t\t * @param {object} connectOptions - Attributes used with the connection.\n\t\t * @param {number} connectOptions.timeout - If the connect has not succeeded within this\n\t\t * number of seconds, it is deemed to have failed.\n\t\t * The default is 30 seconds.\n\t\t * @param {string} connectOptions.userName - Authentication username for this connection.\n\t\t * @param {string} connectOptions.password - Authentication password for this connection.\n\t\t * @param {Paho.Message} connectOptions.willMessage - sent by the server when the client\n\t\t * disconnects abnormally.\n\t\t * @param {number} connectOptions.keepAliveInterval - the server disconnects this client if\n\t\t * there is no activity for this number of seconds.\n\t\t * The default value of 60 seconds is assumed if not set.\n\t\t * @param {boolean} connectOptions.cleanSession - if true(default) the client and server\n\t\t * persistent state is deleted on successful connect.\n\t\t * @param {boolean} connectOptions.useSSL - if present and true, use an SSL Websocket connection.\n\t\t * @param {object} connectOptions.invocationContext - passed to the onSuccess callback or onFailure callback.\n\t\t * @param {function} connectOptions.onSuccess - called when the connect acknowledgement\n\t\t * has been received from the server.\n\t\t * A single response object parameter is passed to the onSuccess callback containing the following fields:\n\t\t * \n\t\t * - invocationContext as passed in to the onSuccess method in the connectOptions.\n\t\t *
\n\t * @param {function} connectOptions.onFailure - called when the connect request has failed or timed out.\n\t\t * A single response object parameter is passed to the onFailure callback containing the following fields:\n\t\t * \n\t\t * - invocationContext as passed in to the onFailure method in the connectOptions.\n\t\t *
- errorCode a number indicating the nature of the error.\n\t\t *
- errorMessage text describing the error.\n\t\t *
\n\t * @param {array} connectOptions.hosts - If present this contains either a set of hostnames or fully qualified\n\t\t * WebSocket URIs (ws://iot.eclipse.org:80/ws), that are tried in order in place\n\t\t * of the host and port paramater on the construtor. The hosts are tried one at at time in order until\n\t\t * one of then succeeds.\n\t * @param {array} connectOptions.ports - If present the set of ports matching the hosts. If hosts contains URIs, this property\n\t\t * is not used.\n\t * @param {boolean} connectOptions.reconnect - Sets whether the client will automatically attempt to reconnect\n\t * to the server if the connection is lost.\n\t *\n\t *- If set to false, the client will not attempt to automatically reconnect to the server in the event that the\n\t * connection is lost.
\n\t *- If set to true, in the event that the connection is lost, the client will attempt to reconnect to the server.\n\t * It will initially wait 1 second before it attempts to reconnect, for every failed reconnect attempt, the delay\n\t * will double until it is at 2 minutes at which point the delay will stay at 2 minutes.
\n\t *
\n\t * @param {number} connectOptions.mqttVersion - The version of MQTT to use to connect to the MQTT Broker.\n\t *\n\t *- 3 - MQTT V3.1
\n\t *- 4 - MQTT V3.1.1
\n\t *
\n\t * @param {boolean} connectOptions.mqttVersionExplicit - If set to true, will force the connection to use the\n\t * selected MQTT Version or will fail to connect.\n\t * @param {array} connectOptions.uris - If present, should contain a list of fully qualified WebSocket uris\n\t * (e.g. ws://iot.eclipse.org:80/ws), that are tried in order in place of the host and port parameter of the construtor.\n\t * The uris are tried one at a time in order until one of them succeeds. Do not use this in conjunction with hosts as\n\t * the hosts array will be converted to uris and will overwrite this property.\n\t\t * @throws {InvalidState} If the client is not in disconnected state. The client must have received connectionLost\n\t\t * or disconnected before calling connect for a second or subsequent time.\n\t\t */\n\t\t\tthis.connect = function (connectOptions) {\n\t\t\t\tconnectOptions = connectOptions || {} ;\n\t\t\t\tvalidate(connectOptions, {timeout:\"number\",\n\t\t\t\t\tuserName:\"string\",\n\t\t\t\t\tpassword:\"string\",\n\t\t\t\t\twillMessage:\"object\",\n\t\t\t\t\tkeepAliveInterval:\"number\",\n\t\t\t\t\tcleanSession:\"boolean\",\n\t\t\t\t\tuseSSL:\"boolean\",\n\t\t\t\t\tinvocationContext:\"object\",\n\t\t\t\t\tonSuccess:\"function\",\n\t\t\t\t\tonFailure:\"function\",\n\t\t\t\t\thosts:\"object\",\n\t\t\t\t\tports:\"object\",\n\t\t\t\t\treconnect:\"boolean\",\n\t\t\t\t\tmqttVersion:\"number\",\n\t\t\t\t\tmqttVersionExplicit:\"boolean\",\n\t\t\t\t\turis: \"object\"});\n\n\t\t\t\t// If no keep alive interval is set, assume 60 seconds.\n\t\t\t\tif (connectOptions.keepAliveInterval === undefined)\n\t\t\t\t\tconnectOptions.keepAliveInterval = 60;\n\n\t\t\t\tif (connectOptions.mqttVersion > 4 || connectOptions.mqttVersion < 3) {\n\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.mqttVersion, \"connectOptions.mqttVersion\"]));\n\t\t\t\t}\n\n\t\t\t\tif (connectOptions.mqttVersion === undefined) {\n\t\t\t\t\tconnectOptions.mqttVersionExplicit = false;\n\t\t\t\t\tconnectOptions.mqttVersion = 4;\n\t\t\t\t} else {\n\t\t\t\t\tconnectOptions.mqttVersionExplicit = true;\n\t\t\t\t}\n\n\t\t\t\t//Check that if password is set, so is username\n\t\t\t\tif (connectOptions.password !== undefined && connectOptions.userName === undefined)\n\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.password, \"connectOptions.password\"]));\n\n\t\t\t\tif (connectOptions.willMessage) {\n\t\t\t\t\tif (!(connectOptions.willMessage instanceof Message))\n\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [connectOptions.willMessage, \"connectOptions.willMessage\"]));\n\t\t\t\t\t// The will message must have a payload that can be represented as a string.\n\t\t\t\t\t// Cause the willMessage to throw an exception if this is not the case.\n\t\t\t\t\tconnectOptions.willMessage.stringPayload = null;\n\n\t\t\t\t\tif (typeof connectOptions.willMessage.destinationName === \"undefined\")\n\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_TYPE, [typeof connectOptions.willMessage.destinationName, \"connectOptions.willMessage.destinationName\"]));\n\t\t\t\t}\n\t\t\t\tif (typeof connectOptions.cleanSession === \"undefined\")\n\t\t\t\t\tconnectOptions.cleanSession = true;\n\t\t\t\tif (connectOptions.hosts) {\n\n\t\t\t\t\tif (!(connectOptions.hosts instanceof Array) )\n\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.hosts, \"connectOptions.hosts\"]));\n\t\t\t\t\tif (connectOptions.hosts.length <1 )\n\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [connectOptions.hosts, \"connectOptions.hosts\"]));\n\n\t\t\t\t\tvar usingURIs = false;\n\t\t\t\t\tfor (var i = 0; i\n\t\t * @param {object} subscribeOptions - used to control the subscription\n\t\t *\n\t\t * @param {number} subscribeOptions.qos - the maximum qos of any publications sent\n\t\t * as a result of making this subscription.\n\t\t * @param {object} subscribeOptions.invocationContext - passed to the onSuccess callback\n\t\t * or onFailure callback.\n\t\t * @param {function} subscribeOptions.onSuccess - called when the subscribe acknowledgement\n\t\t * has been received from the server.\n\t\t * A single response object parameter is passed to the onSuccess callback containing the following fields:\n\t\t * \n\t\t * - invocationContext if set in the subscribeOptions.\n\t\t *
\n\t\t * @param {function} subscribeOptions.onFailure - called when the subscribe request has failed or timed out.\n\t\t * A single response object parameter is passed to the onFailure callback containing the following fields:\n\t\t * \n\t\t * - invocationContext - if set in the subscribeOptions.\n\t\t *
- errorCode - a number indicating the nature of the error.\n\t\t *
- errorMessage - text describing the error.\n\t\t *
\n\t\t * @param {number} subscribeOptions.timeout - which, if present, determines the number of\n\t\t * seconds after which the onFailure calback is called.\n\t\t * The presence of a timeout does not prevent the onSuccess\n\t\t * callback from being called when the subscribe completes.\n\t\t * @throws {InvalidState} if the client is not in connected state.\n\t\t */\n\t\t\tthis.subscribe = function (filter, subscribeOptions) {\n\t\t\t\tif (typeof filter !== \"string\" && filter.constructor !== Array)\n\t\t\t\t\tthrow new Error(\"Invalid argument:\"+filter);\n\t\t\t\tsubscribeOptions = subscribeOptions || {} ;\n\t\t\t\tvalidate(subscribeOptions, {qos:\"number\",\n\t\t\t\t\tinvocationContext:\"object\",\n\t\t\t\t\tonSuccess:\"function\",\n\t\t\t\t\tonFailure:\"function\",\n\t\t\t\t\ttimeout:\"number\"\n\t\t\t\t});\n\t\t\t\tif (subscribeOptions.timeout && !subscribeOptions.onFailure)\n\t\t\t\t\tthrow new Error(\"subscribeOptions.timeout specified with no onFailure callback.\");\n\t\t\t\tif (typeof subscribeOptions.qos !== \"undefined\" && !(subscribeOptions.qos === 0 || subscribeOptions.qos === 1 || subscribeOptions.qos === 2 ))\n\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [subscribeOptions.qos, \"subscribeOptions.qos\"]));\n\t\t\t\tclient.subscribe(filter, subscribeOptions);\n\t\t\t};\n\n\t\t/**\n\t\t * Unsubscribe for messages, stop receiving messages sent to destinations described by the filter.\n\t\t *\n\t\t * @name Paho.Client#unsubscribe\n\t\t * @function\n\t\t * @param {string} filter - describing the destinations to receive messages from.\n\t\t * @param {object} unsubscribeOptions - used to control the subscription\n\t\t * @param {object} unsubscribeOptions.invocationContext - passed to the onSuccess callback\n\t\t\t\t\t\t\t\t\t\t\t or onFailure callback.\n\t\t * @param {function} unsubscribeOptions.onSuccess - called when the unsubscribe acknowledgement has been received from the server.\n\t\t * A single response object parameter is passed to the\n\t\t * onSuccess callback containing the following fields:\n\t\t * \n\t\t * - invocationContext - if set in the unsubscribeOptions.\n\t\t *
\n\t\t * @param {function} unsubscribeOptions.onFailure called when the unsubscribe request has failed or timed out.\n\t\t * A single response object parameter is passed to the onFailure callback containing the following fields:\n\t\t * \n\t\t * - invocationContext - if set in the unsubscribeOptions.\n\t\t *
- errorCode - a number indicating the nature of the error.\n\t\t *
- errorMessage - text describing the error.\n\t\t *
\n\t\t * @param {number} unsubscribeOptions.timeout - which, if present, determines the number of seconds\n\t\t * after which the onFailure callback is called. The presence of\n\t\t * a timeout does not prevent the onSuccess callback from being\n\t\t * called when the unsubscribe completes\n\t\t * @throws {InvalidState} if the client is not in connected state.\n\t\t */\n\t\t\tthis.unsubscribe = function (filter, unsubscribeOptions) {\n\t\t\t\tif (typeof filter !== \"string\" && filter.constructor !== Array)\n\t\t\t\t\tthrow new Error(\"Invalid argument:\"+filter);\n\t\t\t\tunsubscribeOptions = unsubscribeOptions || {} ;\n\t\t\t\tvalidate(unsubscribeOptions, {invocationContext:\"object\",\n\t\t\t\t\tonSuccess:\"function\",\n\t\t\t\t\tonFailure:\"function\",\n\t\t\t\t\ttimeout:\"number\"\n\t\t\t\t});\n\t\t\t\tif (unsubscribeOptions.timeout && !unsubscribeOptions.onFailure)\n\t\t\t\t\tthrow new Error(\"unsubscribeOptions.timeout specified with no onFailure callback.\");\n\t\t\t\tclient.unsubscribe(filter, unsubscribeOptions);\n\t\t\t};\n\n\t\t\t/**\n\t\t * Send a message to the consumers of the destination in the Message.\n\t\t *\n\t\t * @name Paho.Client#send\n\t\t * @function\n\t\t * @param {string|Paho.Message} topic - mandatory The name of the destination to which the message is to be sent.\n\t\t * \t\t\t\t\t - If it is the only parameter, used as Paho.Message object.\n\t\t * @param {String|ArrayBuffer} payload - The message data to be sent.\n\t\t * @param {number} qos The Quality of Service used to deliver the message.\n\t\t * \t\t\n\t\t * \t\t\t- 0 Best effort (default).\n\t\t * \t\t\t
- 1 At least once.\n\t\t * \t\t\t
- 2 Exactly once.\n\t\t * \t\t
\n\t\t * @param {Boolean} retained If true, the message is to be retained by the server and delivered\n\t\t * to both current and future subscriptions.\n\t\t * If false the server only delivers the message to current subscribers, this is the default for new Messages.\n\t\t * A received message has the retained boolean set to true if the message was published\n\t\t * with the retained boolean set to true\n\t\t * and the subscrption was made after the message has been published.\n\t\t * @throws {InvalidState} if the client is not connected.\n\t\t */\n\t\t\tthis.send = function (topic,payload,qos,retained) {\n\t\t\t\tvar message ;\n\n\t\t\t\tif(arguments.length === 0){\n\t\t\t\t\tthrow new Error(\"Invalid argument.\"+\"length\");\n\n\t\t\t\t}else if(arguments.length == 1) {\n\n\t\t\t\t\tif (!(topic instanceof Message) && (typeof topic !== \"string\"))\n\t\t\t\t\t\tthrow new Error(\"Invalid argument:\"+ typeof topic);\n\n\t\t\t\t\tmessage = topic;\n\t\t\t\t\tif (typeof message.destinationName === \"undefined\")\n\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT,[message.destinationName,\"Message.destinationName\"]));\n\t\t\t\t\tclient.send(message);\n\n\t\t\t\t}else {\n\t\t\t\t//parameter checking in Message object\n\t\t\t\t\tmessage = new Message(payload);\n\t\t\t\t\tmessage.destinationName = topic;\n\t\t\t\t\tif(arguments.length >= 3)\n\t\t\t\t\t\tmessage.qos = qos;\n\t\t\t\t\tif(arguments.length >= 4)\n\t\t\t\t\t\tmessage.retained = retained;\n\t\t\t\t\tclient.send(message);\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t/**\n\t\t * Publish a message to the consumers of the destination in the Message.\n\t\t * Synonym for Paho.Mqtt.Client#send\n\t\t *\n\t\t * @name Paho.Client#publish\n\t\t * @function\n\t\t * @param {string|Paho.Message} topic - mandatory The name of the topic to which the message is to be published.\n\t\t * \t\t\t\t\t - If it is the only parameter, used as Paho.Message object.\n\t\t * @param {String|ArrayBuffer} payload - The message data to be published.\n\t\t * @param {number} qos The Quality of Service used to deliver the message.\n\t\t * \t\t\n\t\t * \t\t\t- 0 Best effort (default).\n\t\t * \t\t\t
- 1 At least once.\n\t\t * \t\t\t
- 2 Exactly once.\n\t\t * \t\t
\n\t\t * @param {Boolean} retained If true, the message is to be retained by the server and delivered\n\t\t * to both current and future subscriptions.\n\t\t * If false the server only delivers the message to current subscribers, this is the default for new Messages.\n\t\t * A received message has the retained boolean set to true if the message was published\n\t\t * with the retained boolean set to true\n\t\t * and the subscrption was made after the message has been published.\n\t\t * @throws {InvalidState} if the client is not connected.\n\t\t */\n\t\t\tthis.publish = function(topic,payload,qos,retained) {\n\t\t\t\tvar message ;\n\n\t\t\t\tif(arguments.length === 0){\n\t\t\t\t\tthrow new Error(\"Invalid argument.\"+\"length\");\n\n\t\t\t\t}else if(arguments.length == 1) {\n\n\t\t\t\t\tif (!(topic instanceof Message) && (typeof topic !== \"string\"))\n\t\t\t\t\t\tthrow new Error(\"Invalid argument:\"+ typeof topic);\n\n\t\t\t\t\tmessage = topic;\n\t\t\t\t\tif (typeof message.destinationName === \"undefined\")\n\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT,[message.destinationName,\"Message.destinationName\"]));\n\t\t\t\t\tclient.send(message);\n\n\t\t\t\t}else {\n\t\t\t\t\t//parameter checking in Message object\n\t\t\t\t\tmessage = new Message(payload);\n\t\t\t\t\tmessage.destinationName = topic;\n\t\t\t\t\tif(arguments.length >= 3)\n\t\t\t\t\t\tmessage.qos = qos;\n\t\t\t\t\tif(arguments.length >= 4)\n\t\t\t\t\t\tmessage.retained = retained;\n\t\t\t\t\tclient.send(message);\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t/**\n\t\t * Normal disconnect of this Messaging client from its server.\n\t\t *\n\t\t * @name Paho.Client#disconnect\n\t\t * @function\n\t\t * @throws {InvalidState} if the client is already disconnected.\n\t\t */\n\t\t\tthis.disconnect = function () {\n\t\t\t\tclient.disconnect();\n\t\t\t};\n\n\t\t\t/**\n\t\t * Get the contents of the trace log.\n\t\t *\n\t\t * @name Paho.Client#getTraceLog\n\t\t * @function\n\t\t * @return {Object[]} tracebuffer containing the time ordered trace records.\n\t\t */\n\t\t\tthis.getTraceLog = function () {\n\t\t\t\treturn client.getTraceLog();\n\t\t\t};\n\n\t\t\t/**\n\t\t * Start tracing.\n\t\t *\n\t\t * @name Paho.Client#startTrace\n\t\t * @function\n\t\t */\n\t\t\tthis.startTrace = function () {\n\t\t\t\tclient.startTrace();\n\t\t\t};\n\n\t\t\t/**\n\t\t * Stop tracing.\n\t\t *\n\t\t * @name Paho.Client#stopTrace\n\t\t * @function\n\t\t */\n\t\t\tthis.stopTrace = function () {\n\t\t\t\tclient.stopTrace();\n\t\t\t};\n\n\t\t\tthis.isConnected = function() {\n\t\t\t\treturn client.connected;\n\t\t\t};\n\t\t};\n\n\t\t/**\n\t * An application message, sent or received.\n\t * \n\t * All attributes may be null, which implies the default values.\n\t *\n\t * @name Paho.Message\n\t * @constructor\n\t * @param {String|ArrayBuffer} payload The message data to be sent.\n\t *
\n\t * @property {string} payloadString read only The payload as a string if the payload consists of valid UTF-8 characters.\n\t * @property {ArrayBuffer} payloadBytes read only The payload as an ArrayBuffer.\n\t *
\n\t * @property {string} destinationName mandatory The name of the destination to which the message is to be sent\n\t * (for messages about to be sent) or the name of the destination from which the message has been received.\n\t * (for messages received by the onMessage function).\n\t *
\n\t * @property {number} qos The Quality of Service used to deliver the message.\n\t *
\n\t * - 0 Best effort (default).\n\t *
- 1 At least once.\n\t *
- 2 Exactly once.\n\t *
\n\t * \n\t * @property {Boolean} retained If true, the message is to be retained by the server and delivered\n\t * to both current and future subscriptions.\n\t * If false the server only delivers the message to current subscribers, this is the default for new Messages.\n\t * A received message has the retained boolean set to true if the message was published\n\t * with the retained boolean set to true\n\t * and the subscrption was made after the message has been published.\n\t *
\n\t * @property {Boolean} duplicate read only If true, this message might be a duplicate of one which has already been received.\n\t * This is only set on messages received from the server.\n\t *\n\t */\n\t\tvar Message = function (newPayload) {\n\t\t\tvar payload;\n\t\t\tif ( typeof newPayload === \"string\" ||\n\t\tnewPayload instanceof ArrayBuffer ||\n\t\t(ArrayBuffer.isView(newPayload) && !(newPayload instanceof DataView))\n\t\t\t) {\n\t\t\t\tpayload = newPayload;\n\t\t\t} else {\n\t\t\t\tthrow (format(ERROR.INVALID_ARGUMENT, [newPayload, \"newPayload\"]));\n\t\t\t}\n\n\t\t\tvar destinationName;\n\t\t\tvar qos = 0;\n\t\t\tvar retained = false;\n\t\t\tvar duplicate = false;\n\n\t\t\tObject.defineProperties(this,{\n\t\t\t\t\"payloadString\":{\n\t\t\t\t\tenumerable : true,\n\t\t\t\t\tget : function () {\n\t\t\t\t\t\tif (typeof payload === \"string\")\n\t\t\t\t\t\t\treturn payload;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\treturn parseUTF8(payload, 0, payload.length);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"payloadBytes\":{\n\t\t\t\t\tenumerable: true,\n\t\t\t\t\tget: function() {\n\t\t\t\t\t\tif (typeof payload === \"string\") {\n\t\t\t\t\t\t\tvar buffer = new ArrayBuffer(UTF8Length(payload));\n\t\t\t\t\t\t\tvar byteStream = new Uint8Array(buffer);\n\t\t\t\t\t\t\tstringToUTF8(payload, byteStream, 0);\n\n\t\t\t\t\t\t\treturn byteStream;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn payload;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"destinationName\":{\n\t\t\t\t\tenumerable: true,\n\t\t\t\t\tget: function() { return destinationName; },\n\t\t\t\t\tset: function(newDestinationName) {\n\t\t\t\t\t\tif (typeof newDestinationName === \"string\")\n\t\t\t\t\t\t\tdestinationName = newDestinationName;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [newDestinationName, \"newDestinationName\"]));\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"qos\":{\n\t\t\t\t\tenumerable: true,\n\t\t\t\t\tget: function() { return qos; },\n\t\t\t\t\tset: function(newQos) {\n\t\t\t\t\t\tif (newQos === 0 || newQos === 1 || newQos === 2 )\n\t\t\t\t\t\t\tqos = newQos;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\tthrow new Error(\"Invalid argument:\"+newQos);\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"retained\":{\n\t\t\t\t\tenumerable: true,\n\t\t\t\t\tget: function() { return retained; },\n\t\t\t\t\tset: function(newRetained) {\n\t\t\t\t\t\tif (typeof newRetained === \"boolean\")\n\t\t\t\t\t\t\tretained = newRetained;\n\t\t\t\t\t\telse\n\t\t\t\t\t\t\tthrow new Error(format(ERROR.INVALID_ARGUMENT, [newRetained, \"newRetained\"]));\n\t\t\t\t\t}\n\t\t\t\t},\n\t\t\t\t\"topic\":{\n\t\t\t\t\tenumerable: true,\n\t\t\t\t\tget: function() { return destinationName; },\n\t\t\t\t\tset: function(newTopic) {destinationName=newTopic;}\n\t\t\t\t},\n\t\t\t\t\"duplicate\":{\n\t\t\t\t\tenumerable: true,\n\t\t\t\t\tget: function() { return duplicate; },\n\t\t\t\t\tset: function(newDuplicate) {duplicate=newDuplicate;}\n\t\t\t\t}\n\t\t\t});\n\t\t};\n\n\t\t// Module contents.\n\t\treturn {\n\t\t\tClient: Client,\n\t\t\tMessage: Message\n\t\t};\n\t// eslint-disable-next-line no-nested-ternary\n\t})(typeof global !== \"undefined\" ? global : typeof self !== \"undefined\" ? self : typeof window !== \"undefined\" ? window : {});\n\treturn PahoMQTT;\n});\n","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\nvar __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n};\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\n function verb(n) { return function (v) { return step([n, v]); }; }\n function step(op) {\n if (f) throw new TypeError(\"Generator is already executing.\");\n while (_) try {\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n if (y = 0, t) op = [op[0] & 2, t.value];\n switch (op[0]) {\n case 0: case 1: t = op; break;\n case 4: _.label++; return { value: op[1], done: false };\n case 5: _.label++; y = op[1]; op = [0]; continue;\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\n default:\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n if (t[2]) _.ops.pop();\n _.trys.pop(); continue;\n }\n op = body.call(thisArg, _);\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n }\n};\nvar __rest = (this && this.__rest) || function (s, e) {\n var t = {};\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n t[p] = s[p];\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\n t[p[i]] = s[p[i]];\n }\n return t;\n};\n/*\n * Copyright 2017-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n * http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport * as Paho from 'paho-mqtt';\nimport { v4 as uuid } from 'uuid';\nimport Observable from 'zen-observable-ts';\nimport { AbstractPubSubProvider } from './PubSubProvider';\nimport { ConsoleLogger as Logger } from '@aws-amplify/core';\nvar logger = new Logger('MqttOverWSProvider');\nexport function mqttTopicMatch(filter, topic) {\n var filterArray = filter.split('/');\n var length = filterArray.length;\n var topicArray = topic.split('/');\n for (var i = 0; i < length; ++i) {\n var left = filterArray[i];\n var right = topicArray[i];\n if (left === '#')\n return topicArray.length >= length;\n if (left !== '+' && left !== right)\n return false;\n }\n return length === topicArray.length;\n}\nvar ClientsQueue = /** @class */ (function () {\n function ClientsQueue() {\n this.promises = new Map();\n }\n ClientsQueue.prototype.get = function (clientId, clientFactory) {\n return __awaiter(this, void 0, void 0, function () {\n var promise;\n return __generator(this, function (_a) {\n promise = this.promises.get(clientId);\n if (promise) {\n return [2 /*return*/, promise];\n }\n promise = clientFactory(clientId);\n this.promises.set(clientId, promise);\n return [2 /*return*/, promise];\n });\n });\n };\n Object.defineProperty(ClientsQueue.prototype, \"allClients\", {\n get: function () {\n return Array.from(this.promises.keys());\n },\n enumerable: true,\n configurable: true\n });\n ClientsQueue.prototype.remove = function (clientId) {\n this.promises.delete(clientId);\n };\n return ClientsQueue;\n}());\nvar topicSymbol = typeof Symbol !== 'undefined' ? Symbol('topic') : '@@topic';\nvar MqttOverWSProvider = /** @class */ (function (_super) {\n __extends(MqttOverWSProvider, _super);\n function MqttOverWSProvider(options) {\n if (options === void 0) { options = {}; }\n var _this = _super.call(this, __assign(__assign({}, options), { clientId: options.clientId || uuid() })) || this;\n _this._clientsQueue = new ClientsQueue();\n _this._topicObservers = new Map();\n _this._clientIdObservers = new Map();\n return _this;\n }\n Object.defineProperty(MqttOverWSProvider.prototype, \"clientId\", {\n get: function () {\n return this.options.clientId;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(MqttOverWSProvider.prototype, \"endpoint\", {\n get: function () {\n return this.options.aws_pubsub_endpoint;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(MqttOverWSProvider.prototype, \"clientsQueue\", {\n get: function () {\n return this._clientsQueue;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(MqttOverWSProvider.prototype, \"isSSLEnabled\", {\n get: function () {\n return !this.options\n .aws_appsync_dangerously_connect_to_http_endpoint_for_testing;\n },\n enumerable: true,\n configurable: true\n });\n MqttOverWSProvider.prototype.getTopicForValue = function (value) {\n return typeof value === 'object' && value[topicSymbol];\n };\n MqttOverWSProvider.prototype.getProviderName = function () {\n return 'MqttOverWSProvider';\n };\n MqttOverWSProvider.prototype.onDisconnect = function (_a) {\n var _this = this;\n var clientId = _a.clientId, errorCode = _a.errorCode, args = __rest(_a, [\"clientId\", \"errorCode\"]);\n if (errorCode !== 0) {\n logger.warn(clientId, JSON.stringify(__assign({ errorCode: errorCode }, args), null, 2));\n var topicsToDelete_1 = [];\n var clientIdObservers = this._clientIdObservers.get(clientId);\n if (!clientIdObservers) {\n return;\n }\n clientIdObservers.forEach(function (observer) {\n observer.error('Disconnected, error code: ' + errorCode);\n // removing observers for disconnected clientId\n _this._topicObservers.forEach(function (observerForTopic, observerTopic) {\n observerForTopic.delete(observer);\n if (observerForTopic.size === 0) {\n topicsToDelete_1.push(observerTopic);\n }\n });\n });\n // forgiving any trace of clientId\n this._clientIdObservers.delete(clientId);\n // Removing topics that are not listen by an observer\n topicsToDelete_1.forEach(function (topic) {\n _this._topicObservers.delete(topic);\n });\n }\n };\n MqttOverWSProvider.prototype.newClient = function (_a) {\n var url = _a.url, clientId = _a.clientId;\n return __awaiter(this, void 0, void 0, function () {\n var client;\n var _this = this;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n logger.debug('Creating new MQTT client', clientId);\n client = new Paho.Client(url, clientId);\n // client.trace = (args) => logger.debug(clientId, JSON.stringify(args, null, 2));\n client.onMessageArrived = function (_a) {\n var topic = _a.destinationName, msg = _a.payloadString;\n _this._onMessage(topic, msg);\n };\n client.onConnectionLost = function (_a) {\n var errorCode = _a.errorCode, args = __rest(_a, [\"errorCode\"]);\n _this.onDisconnect(__assign({ clientId: clientId, errorCode: errorCode }, args));\n };\n return [4 /*yield*/, new Promise(function (resolve, reject) {\n client.connect({\n useSSL: _this.isSSLEnabled,\n mqttVersion: 3,\n onSuccess: function () { return resolve(client); },\n onFailure: reject,\n });\n })];\n case 1:\n _b.sent();\n return [2 /*return*/, client];\n }\n });\n });\n };\n MqttOverWSProvider.prototype.connect = function (clientId, options) {\n if (options === void 0) { options = {}; }\n return __awaiter(this, void 0, void 0, function () {\n var _this = this;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0: return [4 /*yield*/, this.clientsQueue.get(clientId, function (clientId) {\n return _this.newClient(__assign(__assign({}, options), { clientId: clientId }));\n })];\n case 1: return [2 /*return*/, _a.sent()];\n }\n });\n });\n };\n MqttOverWSProvider.prototype.disconnect = function (clientId) {\n return __awaiter(this, void 0, void 0, function () {\n var client;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0: return [4 /*yield*/, this.clientsQueue.get(clientId, function () { return null; })];\n case 1:\n client = _a.sent();\n if (client && client.isConnected()) {\n client.disconnect();\n }\n this.clientsQueue.remove(clientId);\n return [2 /*return*/];\n }\n });\n });\n };\n MqttOverWSProvider.prototype.publish = function (topics, msg) {\n return __awaiter(this, void 0, void 0, function () {\n var targetTopics, message, url, client;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0:\n targetTopics = [].concat(topics);\n message = JSON.stringify(msg);\n return [4 /*yield*/, this.endpoint];\n case 1:\n url = _a.sent();\n return [4 /*yield*/, this.connect(this.clientId, { url: url })];\n case 2:\n client = _a.sent();\n logger.debug('Publishing to topic(s)', targetTopics.join(','), message);\n targetTopics.forEach(function (topic) { return client.send(topic, message); });\n return [2 /*return*/];\n }\n });\n });\n };\n MqttOverWSProvider.prototype._onMessage = function (topic, msg) {\n try {\n var matchedTopicObservers_1 = [];\n this._topicObservers.forEach(function (observerForTopic, observerTopic) {\n if (mqttTopicMatch(observerTopic, topic)) {\n matchedTopicObservers_1.push(observerForTopic);\n }\n });\n var parsedMessage_1 = JSON.parse(msg);\n if (typeof parsedMessage_1 === 'object') {\n parsedMessage_1[topicSymbol] = topic;\n }\n matchedTopicObservers_1.forEach(function (observersForTopic) {\n observersForTopic.forEach(function (observer) { return observer.next(parsedMessage_1); });\n });\n }\n catch (error) {\n logger.warn('Error handling message', error, msg);\n }\n };\n MqttOverWSProvider.prototype.subscribe = function (topics, options) {\n var _this = this;\n if (options === void 0) { options = {}; }\n var targetTopics = [].concat(topics);\n logger.debug('Subscribing to topic(s)', targetTopics.join(','));\n return new Observable(function (observer) {\n targetTopics.forEach(function (topic) {\n // this._topicObservers is used to notify the observers according to the topic received on the message\n var observersForTopic = _this._topicObservers.get(topic);\n if (!observersForTopic) {\n observersForTopic = new Set();\n _this._topicObservers.set(topic, observersForTopic);\n }\n observersForTopic.add(observer);\n });\n // @ts-ignore\n var client;\n var _a = options.clientId, clientId = _a === void 0 ? _this.clientId : _a;\n // this._clientIdObservers is used to close observers when client gets disconnected\n var observersForClientId = _this._clientIdObservers.get(clientId);\n if (!observersForClientId) {\n observersForClientId = new Set();\n }\n observersForClientId.add(observer);\n _this._clientIdObservers.set(clientId, observersForClientId);\n (function () { return __awaiter(_this, void 0, void 0, function () {\n var _a, url, _b, e_1;\n return __generator(this, function (_c) {\n switch (_c.label) {\n case 0:\n _a = options.url;\n if (!(_a === void 0)) return [3 /*break*/, 2];\n return [4 /*yield*/, this.endpoint];\n case 1:\n _b = _c.sent();\n return [3 /*break*/, 3];\n case 2:\n _b = _a;\n _c.label = 3;\n case 3:\n url = _b;\n _c.label = 4;\n case 4:\n _c.trys.push([4, 6, , 7]);\n return [4 /*yield*/, this.connect(clientId, { url: url })];\n case 5:\n client = _c.sent();\n targetTopics.forEach(function (topic) {\n client.subscribe(topic);\n });\n return [3 /*break*/, 7];\n case 6:\n e_1 = _c.sent();\n observer.error(e_1);\n return [3 /*break*/, 7];\n case 7: return [2 /*return*/];\n }\n });\n }); })();\n return function () {\n logger.debug('Unsubscribing from topic(s)', targetTopics.join(','));\n if (client) {\n _this._clientIdObservers.get(clientId).delete(observer);\n // No more observers per client => client not needed anymore\n if (_this._clientIdObservers.get(clientId).size === 0) {\n _this.disconnect(clientId);\n _this._clientIdObservers.delete(clientId);\n }\n targetTopics.forEach(function (topic) {\n var observersForTopic = _this._topicObservers.get(topic) ||\n new Set();\n observersForTopic.delete(observer);\n // if no observers exists for the topic, topic should be removed\n if (observersForTopic.size === 0) {\n _this._topicObservers.delete(topic);\n if (client.isConnected()) {\n client.unsubscribe(topic);\n }\n }\n });\n }\n return null;\n };\n });\n };\n return MqttOverWSProvider;\n}(AbstractPubSubProvider));\nexport { MqttOverWSProvider };\n//# sourceMappingURL=MqttOverWSProvider.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; 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}\n }\n return ar;\n};\nvar __spread = (this && this.__spread) || function () {\n for (var ar = [], i = 0; i < arguments.length; i++) ar = ar.concat(__read(arguments[i]));\n return ar;\n};\nimport Observable from 'zen-observable-ts';\nimport { ConsoleLogger as Logger } from '@aws-amplify/core';\nimport { MqttOverWSProvider } from './MqttOverWSProvider';\nvar logger = new Logger('AWSAppSyncProvider');\nvar AWSAppSyncProvider = /** @class */ (function (_super) {\n __extends(AWSAppSyncProvider, _super);\n function AWSAppSyncProvider() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this._topicClient = new Map();\n _this._topicAlias = new Map();\n return _this;\n }\n Object.defineProperty(AWSAppSyncProvider.prototype, \"endpoint\", {\n get: function () {\n throw new Error('Not supported');\n },\n enumerable: true,\n configurable: true\n });\n AWSAppSyncProvider.prototype.getProviderName = function () {\n return 'AWSAppSyncProvider';\n };\n AWSAppSyncProvider.prototype.publish = function (topics, msg, options) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n throw new Error('Operation not supported');\n });\n });\n };\n AWSAppSyncProvider.prototype._cleanUp = function (clientId) {\n var _this = this;\n var topicsForClient = Array.from(this._topicClient.entries())\n .filter(function (_a) {\n var _b = __read(_a, 2), c = _b[1];\n return c.clientId === clientId;\n })\n .map(function (_a) {\n var _b = __read(_a, 1), t = _b[0];\n return t;\n });\n topicsForClient.forEach(function (t) { return _this._cleanUpForTopic(t); });\n };\n AWSAppSyncProvider.prototype._cleanUpForTopic = function (topic) {\n this._topicClient.delete(topic);\n this._topicAlias.delete(topic);\n };\n AWSAppSyncProvider.prototype.onDisconnect = function (_a) {\n var _this = this;\n var clientId = _a.clientId, errorCode = _a.errorCode, args = __rest(_a, [\"clientId\", \"errorCode\"]);\n if (errorCode !== 0) {\n var topicsForClient = Array.from(this._topicClient.entries())\n .filter(function (_a) {\n var _b = __read(_a, 2), c = _b[1];\n return c.clientId === clientId;\n })\n .map(function (_a) {\n var _b = __read(_a, 1), t = _b[0];\n return t;\n });\n topicsForClient.forEach(function (topic) {\n if (_this._topicObservers.has(topic)) {\n _this._topicObservers.get(topic).forEach(function (obs) {\n if (!obs.closed) {\n obs.error(args);\n }\n });\n _this._topicObservers.delete(topic);\n }\n });\n this._cleanUp(clientId);\n }\n };\n AWSAppSyncProvider.prototype.disconnect = function (clientId) {\n return __awaiter(this, void 0, void 0, function () {\n var client;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0: return [4 /*yield*/, this.clientsQueue.get(clientId, function () { return null; })];\n case 1:\n client = _a.sent();\n return [4 /*yield*/, _super.prototype.disconnect.call(this, clientId)];\n case 2:\n _a.sent();\n this._cleanUp(clientId);\n return [2 /*return*/];\n }\n });\n });\n };\n AWSAppSyncProvider.prototype.subscribe = function (topics, options) {\n var _this = this;\n if (options === void 0) { options = {}; }\n var result = new Observable(function (observer) {\n var targetTopics = [].concat(topics);\n logger.debug('Subscribing to topic(s)', targetTopics.join(','));\n (function () { return __awaiter(_this, void 0, void 0, function () {\n var _a, mqttConnections, newSubscriptions, newAliases, map;\n var _this = this;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n // Add these topics to map\n targetTopics.forEach(function (t) {\n if (!_this._topicObservers.has(t)) {\n _this._topicObservers.set(t, new Set());\n }\n _this._topicObservers.get(t).add(observer);\n });\n _a = options.mqttConnections, mqttConnections = _a === void 0 ? [] : _a, newSubscriptions = options.newSubscriptions;\n newAliases = Object.entries(newSubscriptions).map(function (_a) {\n var _b = __read(_a, 2), alias = _b[0], v = _b[1];\n return [v.topic, alias];\n });\n // Merge new aliases with old ones\n this._topicAlias = new Map(__spread(Array.from(this._topicAlias.entries()), newAliases));\n map = Object.entries(targetTopics.reduce(function (acc, elem) {\n var connectionInfoForTopic = mqttConnections.find(function (c) { return c.topics.indexOf(elem) > -1; });\n if (connectionInfoForTopic) {\n var clientId = connectionInfoForTopic.client, url = connectionInfoForTopic.url;\n if (!acc[clientId]) {\n acc[clientId] = {\n url: url,\n topics: new Set(),\n };\n }\n acc[clientId].topics.add(elem);\n }\n return acc;\n }, {}));\n // reconnect everything we have in the map\n return [4 /*yield*/, Promise.all(map.map(function (_a) {\n var _b = __read(_a, 2), clientId = _b[0], _c = _b[1], url = _c.url, topics = _c.topics;\n return __awaiter(_this, void 0, void 0, function () {\n var client, err_1;\n var _this = this;\n return __generator(this, function (_d) {\n switch (_d.label) {\n case 0:\n client = null;\n _d.label = 1;\n case 1:\n _d.trys.push([1, 3, , 4]);\n return [4 /*yield*/, this.connect(clientId, {\n clientId: clientId,\n url: url,\n })];\n case 2:\n client = _d.sent();\n return [3 /*break*/, 4];\n case 3:\n err_1 = _d.sent();\n observer.error({ message: 'Failed to connect', error: err_1 });\n observer.complete();\n return [2 /*return*/, undefined];\n case 4:\n // subscribe to all topics for this client\n // store topic-client mapping\n topics.forEach(function (topic) {\n if (client.isConnected()) {\n client.subscribe(topic);\n _this._topicClient.set(topic, client);\n }\n });\n return [2 /*return*/, client];\n }\n });\n });\n }))];\n case 1:\n // reconnect everything we have in the map\n _b.sent();\n return [2 /*return*/];\n }\n });\n }); })();\n return function () {\n logger.debug('Unsubscribing from topic(s)', targetTopics.join(','));\n targetTopics.forEach(function (t) {\n var client = _this._topicClient.get(t);\n if (client && client.isConnected()) {\n client.unsubscribe(t);\n _this._topicClient.delete(t);\n if (!Array.from(_this._topicClient.values()).some(function (c) { return c === client; })) {\n _this.disconnect(client.clientId);\n }\n }\n _this._topicObservers.delete(t);\n });\n };\n });\n return Observable.from(result).map(function (value) {\n var topic = _this.getTopicForValue(value);\n var alias = _this._topicAlias.get(topic);\n value.data = Object.entries(value.data).reduce(function (obj, _a) {\n var _b = __read(_a, 2), origKey = _b[0], val = _b[1];\n return ((obj[(alias || origKey)] = val), obj);\n }, {});\n return value;\n });\n };\n return AWSAppSyncProvider;\n}(MqttOverWSProvider));\nexport { AWSAppSyncProvider };\n//# sourceMappingURL=AWSAppSyncProvider.js.map","var __extends = (this && this.__extends) || (function () {\n var extendStatics = function (d, b) {\n extendStatics = Object.setPrototypeOf ||\n ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n return extendStatics(d, b);\n };\n return function (d, b) {\n extendStatics(d, b);\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n };\n})();\nvar __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n};\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\n function verb(n) { return function (v) { return step([n, v]); }; }\n function step(op) {\n if (f) throw new TypeError(\"Generator is already executing.\");\n while (_) try {\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n if (y = 0, t) op = [op[0] & 2, t.value];\n switch (op[0]) {\n case 0: case 1: t = op; break;\n case 4: _.label++; return { value: op[1], done: false };\n case 5: _.label++; y = op[1]; op = [0]; continue;\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\n default:\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n if (t[2]) _.ops.pop();\n _.trys.pop(); continue;\n }\n op = body.call(thisArg, _);\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n }\n};\nvar __read = (this && this.__read) || function (o, n) {\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\n if (!m) return o;\n var i = m.call(o), r, ar = [], e;\n try {\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\n }\n catch (error) { e = { error: error }; }\n finally {\n try {\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\n }\n finally { if (e) throw e.error; }\n }\n return ar;\n};\n/*\n * Copyright 2017-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n * http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport Observable from 'zen-observable-ts';\nimport { GraphQLError } from 'graphql';\nimport * as url from 'url';\nimport { v4 as uuid } from 'uuid';\nimport { Buffer } from 'buffer';\nimport { Logger, Credentials, Signer, Hub, Constants, USER_AGENT_HEADER, jitteredExponentialRetry, NonRetryableError, } from '@aws-amplify/core';\nimport Cache from '@aws-amplify/cache';\nimport Auth from '@aws-amplify/auth';\nimport { AbstractPubSubProvider } from './PubSubProvider';\nimport { CONTROL_MSG } from '../index';\nvar logger = new Logger('AWSAppSyncRealTimeProvider');\nvar AMPLIFY_SYMBOL = (typeof Symbol !== 'undefined' &&\n typeof Symbol.for === 'function'\n ? Symbol.for('amplify_default')\n : '@@amplify_default');\nvar dispatchApiEvent = function (event, data, message) {\n Hub.dispatch('api', { event: event, data: data, message: message }, 'PubSub', AMPLIFY_SYMBOL);\n};\nvar MAX_DELAY_MS = 5000;\nvar NON_RETRYABLE_CODES = [400, 401, 403];\nvar MESSAGE_TYPES;\n(function (MESSAGE_TYPES) {\n /**\n * Client -> Server message.\n * This message type is the first message after handshake and this will initialize AWS AppSync RealTime communication\n */\n MESSAGE_TYPES[\"GQL_CONNECTION_INIT\"] = \"connection_init\";\n /**\n * Server -> Client message\n * This message type is in case there is an issue with AWS AppSync RealTime when establishing connection\n */\n MESSAGE_TYPES[\"GQL_CONNECTION_ERROR\"] = \"connection_error\";\n /**\n * Server -> Client message.\n * This message type is for the ack response from AWS AppSync RealTime for GQL_CONNECTION_INIT message\n */\n MESSAGE_TYPES[\"GQL_CONNECTION_ACK\"] = \"connection_ack\";\n /**\n * Client -> Server message.\n * This message type is for register subscriptions with AWS AppSync RealTime\n */\n MESSAGE_TYPES[\"GQL_START\"] = \"start\";\n /**\n * Server -> Client message.\n * This message type is for the ack response from AWS AppSync RealTime for GQL_START message\n */\n MESSAGE_TYPES[\"GQL_START_ACK\"] = \"start_ack\";\n /**\n * Server -> Client message.\n * This message type is for subscription message from AWS AppSync RealTime\n */\n MESSAGE_TYPES[\"GQL_DATA\"] = \"data\";\n /**\n * Server -> Client message.\n * This message type helps the client to know is still receiving messages from AWS AppSync RealTime\n */\n MESSAGE_TYPES[\"GQL_CONNECTION_KEEP_ALIVE\"] = \"ka\";\n /**\n * Client -> Server message.\n * This message type is for unregister subscriptions with AWS AppSync RealTime\n */\n MESSAGE_TYPES[\"GQL_STOP\"] = \"stop\";\n /**\n * Server -> Client message.\n * This message type is for the ack response from AWS AppSync RealTime for GQL_STOP message\n */\n MESSAGE_TYPES[\"GQL_COMPLETE\"] = \"complete\";\n /**\n * Server -> Client message.\n * This message type is for sending error messages from AWS AppSync RealTime to the client\n */\n MESSAGE_TYPES[\"GQL_ERROR\"] = \"error\";\n})(MESSAGE_TYPES || (MESSAGE_TYPES = {}));\nvar SUBSCRIPTION_STATUS;\n(function (SUBSCRIPTION_STATUS) {\n SUBSCRIPTION_STATUS[SUBSCRIPTION_STATUS[\"PENDING\"] = 0] = \"PENDING\";\n SUBSCRIPTION_STATUS[SUBSCRIPTION_STATUS[\"CONNECTED\"] = 1] = \"CONNECTED\";\n SUBSCRIPTION_STATUS[SUBSCRIPTION_STATUS[\"FAILED\"] = 2] = \"FAILED\";\n})(SUBSCRIPTION_STATUS || (SUBSCRIPTION_STATUS = {}));\nvar SOCKET_STATUS;\n(function (SOCKET_STATUS) {\n SOCKET_STATUS[SOCKET_STATUS[\"CLOSED\"] = 0] = \"CLOSED\";\n SOCKET_STATUS[SOCKET_STATUS[\"READY\"] = 1] = \"READY\";\n SOCKET_STATUS[SOCKET_STATUS[\"CONNECTING\"] = 2] = \"CONNECTING\";\n})(SOCKET_STATUS || (SOCKET_STATUS = {}));\nvar AWS_APPSYNC_REALTIME_HEADERS = {\n accept: 'application/json, text/javascript',\n 'content-encoding': 'amz-1.0',\n 'content-type': 'application/json; charset=UTF-8',\n};\n/**\n * Time in milleseconds to wait for GQL_CONNECTION_INIT message\n */\nvar CONNECTION_INIT_TIMEOUT = 15000;\n/**\n * Time in milleseconds to wait for GQL_START_ACK message\n */\nvar START_ACK_TIMEOUT = 15000;\n/**\n * Default Time in milleseconds to wait for GQL_CONNECTION_KEEP_ALIVE message\n */\nvar DEFAULT_KEEP_ALIVE_TIMEOUT = 5 * 60 * 1000;\nvar AWSAppSyncRealTimeProvider = /** @class */ (function (_super) {\n __extends(AWSAppSyncRealTimeProvider, _super);\n function AWSAppSyncRealTimeProvider() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.socketStatus = SOCKET_STATUS.CLOSED;\n _this.keepAliveTimeout = DEFAULT_KEEP_ALIVE_TIMEOUT;\n _this.subscriptionObserverMap = new Map();\n _this.promiseArray = [];\n return _this;\n }\n AWSAppSyncRealTimeProvider.prototype.getProviderName = function () {\n return 'AWSAppSyncRealTimeProvider';\n };\n AWSAppSyncRealTimeProvider.prototype.newClient = function () {\n throw new Error('Not used here');\n };\n AWSAppSyncRealTimeProvider.prototype.publish = function (_topics, _msg, _options) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n throw new Error('Operation not supported');\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype.subscribe = function (_topics, options) {\n var _this = this;\n var appSyncGraphqlEndpoint = options.appSyncGraphqlEndpoint;\n return new Observable(function (observer) {\n if (!appSyncGraphqlEndpoint) {\n observer.error({\n errors: [\n __assign({}, new GraphQLError(\"Subscribe only available for AWS AppSync endpoint\")),\n ],\n });\n observer.complete();\n }\n else {\n var subscriptionId_1 = uuid();\n _this._startSubscriptionWithAWSAppSyncRealTime({\n options: options,\n observer: observer,\n subscriptionId: subscriptionId_1,\n }).catch(function (err) {\n observer.error({\n errors: [\n __assign({}, new GraphQLError(CONTROL_MSG.REALTIME_SUBSCRIPTION_INIT_ERROR + \": \" + err)),\n ],\n });\n observer.complete();\n });\n return function () { return __awaiter(_this, void 0, void 0, function () {\n var subscriptionState, err_1;\n return __generator(this, function (_a) {\n switch (_a.label) {\n case 0:\n _a.trys.push([0, 2, 3, 4]);\n // Waiting that subscription has been connected before trying to unsubscribe\n return [4 /*yield*/, this._waitForSubscriptionToBeConnected(subscriptionId_1)];\n case 1:\n // Waiting that subscription has been connected before trying to unsubscribe\n _a.sent();\n subscriptionState = (this.subscriptionObserverMap.get(subscriptionId_1) || {}).subscriptionState;\n if (!subscriptionState) {\n // subscription already unsubscribed\n return [2 /*return*/];\n }\n if (subscriptionState === SUBSCRIPTION_STATUS.CONNECTED) {\n this._sendUnsubscriptionMessage(subscriptionId_1);\n }\n else {\n throw new Error('Subscription never connected');\n }\n return [3 /*break*/, 4];\n case 2:\n err_1 = _a.sent();\n logger.debug(\"Error while unsubscribing \" + err_1);\n return [3 /*break*/, 4];\n case 3:\n this._removeSubscriptionObserver(subscriptionId_1);\n return [7 /*endfinally*/];\n case 4: return [2 /*return*/];\n }\n });\n }); };\n }\n });\n };\n Object.defineProperty(AWSAppSyncRealTimeProvider.prototype, \"isSSLEnabled\", {\n get: function () {\n return !this.options\n .aws_appsync_dangerously_connect_to_http_endpoint_for_testing;\n },\n enumerable: true,\n configurable: true\n });\n AWSAppSyncRealTimeProvider.prototype._startSubscriptionWithAWSAppSyncRealTime = function (_a) {\n var options = _a.options, observer = _a.observer, subscriptionId = _a.subscriptionId;\n return __awaiter(this, void 0, void 0, function () {\n var appSyncGraphqlEndpoint, authenticationType, query, variables, apiKey, region, _b, graphql_headers, _c, additionalHeaders, subscriptionState, data, dataString, headerObj, _d, _e, subscriptionMessage, stringToAWSRealTime, err_2, _f, message, subscriptionFailedCallback_1, _g, subscriptionFailedCallback, subscriptionReadyCallback;\n var _h;\n var _this = this;\n return __generator(this, function (_j) {\n switch (_j.label) {\n case 0:\n appSyncGraphqlEndpoint = options.appSyncGraphqlEndpoint, authenticationType = options.authenticationType, query = options.query, variables = options.variables, apiKey = options.apiKey, region = options.region, _b = options.graphql_headers, graphql_headers = _b === void 0 ? function () { return ({}); } : _b, _c = options.additionalHeaders, additionalHeaders = _c === void 0 ? {} : _c;\n subscriptionState = SUBSCRIPTION_STATUS.PENDING;\n data = {\n query: query,\n variables: variables,\n };\n // Having a subscription id map will make it simple to forward messages received\n this.subscriptionObserverMap.set(subscriptionId, {\n observer: observer,\n query: query,\n variables: variables,\n subscriptionState: subscriptionState,\n startAckTimeoutId: null,\n });\n dataString = JSON.stringify(data);\n _d = [{}];\n return [4 /*yield*/, this._awsRealTimeHeaderBasedAuth({\n apiKey: apiKey,\n appSyncGraphqlEndpoint: appSyncGraphqlEndpoint,\n authenticationType: authenticationType,\n payload: dataString,\n canonicalUri: '',\n region: region,\n })];\n case 1:\n _e = [__assign.apply(void 0, _d.concat([(_j.sent())]))];\n return [4 /*yield*/, graphql_headers()];\n case 2:\n headerObj = __assign.apply(void 0, [__assign.apply(void 0, [__assign.apply(void 0, _e.concat([(_j.sent())])), additionalHeaders]), (_h = {}, _h[USER_AGENT_HEADER] = Constants.userAgent, _h)]);\n subscriptionMessage = {\n id: subscriptionId,\n payload: {\n data: dataString,\n extensions: {\n authorization: __assign({}, headerObj),\n },\n },\n type: MESSAGE_TYPES.GQL_START,\n };\n stringToAWSRealTime = JSON.stringify(subscriptionMessage);\n _j.label = 3;\n case 3:\n _j.trys.push([3, 5, , 6]);\n return [4 /*yield*/, this._initializeWebSocketConnection({\n apiKey: apiKey,\n appSyncGraphqlEndpoint: appSyncGraphqlEndpoint,\n authenticationType: authenticationType,\n region: region,\n })];\n case 4:\n _j.sent();\n return [3 /*break*/, 6];\n case 5:\n err_2 = _j.sent();\n logger.debug({ err: err_2 });\n _f = err_2.message, message = _f === void 0 ? '' : _f;\n observer.error({\n errors: [\n __assign({}, new GraphQLError(CONTROL_MSG.CONNECTION_FAILED + \": \" + message)),\n ],\n });\n observer.complete();\n subscriptionFailedCallback_1 = (this.subscriptionObserverMap.get(subscriptionId) || {}).subscriptionFailedCallback;\n // Notify concurrent unsubscription\n if (typeof subscriptionFailedCallback_1 === 'function') {\n subscriptionFailedCallback_1();\n }\n return [2 /*return*/];\n case 6:\n _g = this.subscriptionObserverMap.get(subscriptionId), subscriptionFailedCallback = _g.subscriptionFailedCallback, subscriptionReadyCallback = _g.subscriptionReadyCallback;\n // This must be done before sending the message in order to be listening immediately\n this.subscriptionObserverMap.set(subscriptionId, {\n observer: observer,\n subscriptionState: subscriptionState,\n variables: variables,\n query: query,\n subscriptionReadyCallback: subscriptionReadyCallback,\n subscriptionFailedCallback: subscriptionFailedCallback,\n startAckTimeoutId: setTimeout(function () {\n _this._timeoutStartSubscriptionAck.call(_this, subscriptionId);\n }, START_ACK_TIMEOUT),\n });\n if (this.awsRealTimeSocket) {\n this.awsRealTimeSocket.send(stringToAWSRealTime);\n }\n return [2 /*return*/];\n }\n });\n });\n };\n // Waiting that subscription has been connected before trying to unsubscribe\n AWSAppSyncRealTimeProvider.prototype._waitForSubscriptionToBeConnected = function (subscriptionId) {\n return __awaiter(this, void 0, void 0, function () {\n var subscriptionState;\n var _this = this;\n return __generator(this, function (_a) {\n subscriptionState = this.subscriptionObserverMap.get(subscriptionId).subscriptionState;\n // This in case unsubscribe is invoked before sending start subscription message\n if (subscriptionState === SUBSCRIPTION_STATUS.PENDING) {\n return [2 /*return*/, new Promise(function (res, rej) {\n var _a = _this.subscriptionObserverMap.get(subscriptionId), observer = _a.observer, subscriptionState = _a.subscriptionState, variables = _a.variables, query = _a.query;\n _this.subscriptionObserverMap.set(subscriptionId, {\n observer: observer,\n subscriptionState: subscriptionState,\n variables: variables,\n query: query,\n subscriptionReadyCallback: res,\n subscriptionFailedCallback: rej,\n });\n })];\n }\n return [2 /*return*/];\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype._sendUnsubscriptionMessage = function (subscriptionId) {\n try {\n if (this.awsRealTimeSocket &&\n this.awsRealTimeSocket.readyState === WebSocket.OPEN &&\n this.socketStatus === SOCKET_STATUS.READY) {\n // Preparing unsubscribe message to stop receiving messages for that subscription\n var unsubscribeMessage = {\n id: subscriptionId,\n type: MESSAGE_TYPES.GQL_STOP,\n };\n var stringToAWSRealTime = JSON.stringify(unsubscribeMessage);\n this.awsRealTimeSocket.send(stringToAWSRealTime);\n }\n }\n catch (err) {\n // If GQL_STOP is not sent because of disconnection issue, then there is nothing the client can do\n logger.debug({ err: err });\n }\n };\n AWSAppSyncRealTimeProvider.prototype._removeSubscriptionObserver = function (subscriptionId) {\n this.subscriptionObserverMap.delete(subscriptionId);\n // Verifying 1000ms after removing subscription in case there are new subscription unmount/mount\n setTimeout(this._closeSocketIfRequired.bind(this), 1000);\n };\n AWSAppSyncRealTimeProvider.prototype._closeSocketIfRequired = function () {\n if (this.subscriptionObserverMap.size > 0) {\n // Active subscriptions on the WebSocket\n return;\n }\n if (!this.awsRealTimeSocket) {\n this.socketStatus = SOCKET_STATUS.CLOSED;\n return;\n }\n if (this.awsRealTimeSocket.bufferedAmount > 0) {\n // Still data on the WebSocket\n setTimeout(this._closeSocketIfRequired.bind(this), 1000);\n }\n else {\n logger.debug('closing WebSocket...');\n clearTimeout(this.keepAliveTimeoutId);\n var tempSocket = this.awsRealTimeSocket;\n // Cleaning callbacks to avoid race condition, socket still exists\n tempSocket.onclose = undefined;\n tempSocket.onerror = undefined;\n tempSocket.close(1000);\n this.awsRealTimeSocket = null;\n this.socketStatus = SOCKET_STATUS.CLOSED;\n }\n };\n AWSAppSyncRealTimeProvider.prototype._handleIncomingSubscriptionMessage = function (message) {\n logger.debug(\"subscription message from AWS AppSync RealTime: \" + message.data);\n var _a = JSON.parse(message.data), _b = _a.id, id = _b === void 0 ? '' : _b, payload = _a.payload, type = _a.type;\n var _c = this.subscriptionObserverMap.get(id) || {}, _d = _c.observer, observer = _d === void 0 ? null : _d, _e = _c.query, query = _e === void 0 ? '' : _e, _f = _c.variables, variables = _f === void 0 ? {} : _f, startAckTimeoutId = _c.startAckTimeoutId, subscriptionReadyCallback = _c.subscriptionReadyCallback, subscriptionFailedCallback = _c.subscriptionFailedCallback;\n logger.debug({ id: id, observer: observer, query: query, variables: variables });\n if (type === MESSAGE_TYPES.GQL_DATA && payload && payload.data) {\n if (observer) {\n observer.next(payload);\n }\n else {\n logger.debug(\"observer not found for id: \" + id);\n }\n return;\n }\n if (type === MESSAGE_TYPES.GQL_START_ACK) {\n logger.debug(\"subscription ready for \" + JSON.stringify({ query: query, variables: variables }));\n if (typeof subscriptionReadyCallback === 'function') {\n subscriptionReadyCallback();\n }\n clearTimeout(startAckTimeoutId);\n dispatchApiEvent(CONTROL_MSG.SUBSCRIPTION_ACK, { query: query, variables: variables }, 'Connection established for subscription');\n var subscriptionState = SUBSCRIPTION_STATUS.CONNECTED;\n this.subscriptionObserverMap.set(id, {\n observer: observer,\n query: query,\n variables: variables,\n startAckTimeoutId: null,\n subscriptionState: subscriptionState,\n subscriptionReadyCallback: subscriptionReadyCallback,\n subscriptionFailedCallback: subscriptionFailedCallback,\n });\n // TODO: emit event on hub but it requires to store the id first\n return;\n }\n if (type === MESSAGE_TYPES.GQL_CONNECTION_KEEP_ALIVE) {\n clearTimeout(this.keepAliveTimeoutId);\n this.keepAliveTimeoutId = setTimeout(this._errorDisconnect.bind(this, CONTROL_MSG.TIMEOUT_DISCONNECT), this.keepAliveTimeout);\n return;\n }\n if (type === MESSAGE_TYPES.GQL_ERROR) {\n var subscriptionState = SUBSCRIPTION_STATUS.FAILED;\n this.subscriptionObserverMap.set(id, {\n observer: observer,\n query: query,\n variables: variables,\n startAckTimeoutId: startAckTimeoutId,\n subscriptionReadyCallback: subscriptionReadyCallback,\n subscriptionFailedCallback: subscriptionFailedCallback,\n subscriptionState: subscriptionState,\n });\n observer.error({\n errors: [\n __assign({}, new GraphQLError(CONTROL_MSG.CONNECTION_FAILED + \": \" + JSON.stringify(payload))),\n ],\n });\n clearTimeout(startAckTimeoutId);\n observer.complete();\n if (typeof subscriptionFailedCallback === 'function') {\n subscriptionFailedCallback();\n }\n }\n };\n AWSAppSyncRealTimeProvider.prototype._errorDisconnect = function (msg) {\n logger.debug(\"Disconnect error: \" + msg);\n this.subscriptionObserverMap.forEach(function (_a) {\n var observer = _a.observer;\n if (observer && !observer.closed) {\n observer.error({\n errors: [__assign({}, new GraphQLError(msg))],\n });\n }\n });\n this.subscriptionObserverMap.clear();\n if (this.awsRealTimeSocket) {\n this.awsRealTimeSocket.close();\n }\n this.socketStatus = SOCKET_STATUS.CLOSED;\n };\n AWSAppSyncRealTimeProvider.prototype._timeoutStartSubscriptionAck = function (subscriptionId) {\n var _a = this.subscriptionObserverMap.get(subscriptionId) || {}, observer = _a.observer, query = _a.query, variables = _a.variables;\n if (!observer) {\n return;\n }\n this.subscriptionObserverMap.set(subscriptionId, {\n observer: observer,\n query: query,\n variables: variables,\n subscriptionState: SUBSCRIPTION_STATUS.FAILED,\n });\n if (observer && !observer.closed) {\n observer.error({\n errors: [\n __assign({}, new GraphQLError(\"Subscription timeout \" + JSON.stringify({ query: query, variables: variables }))),\n ],\n });\n // Cleanup will be automatically executed\n observer.complete();\n }\n logger.debug('timeoutStartSubscription', JSON.stringify({ query: query, variables: variables }));\n };\n AWSAppSyncRealTimeProvider.prototype._initializeWebSocketConnection = function (_a) {\n var _this = this;\n var appSyncGraphqlEndpoint = _a.appSyncGraphqlEndpoint, authenticationType = _a.authenticationType, apiKey = _a.apiKey, region = _a.region;\n if (this.socketStatus === SOCKET_STATUS.READY) {\n return;\n }\n return new Promise(function (res, rej) { return __awaiter(_this, void 0, void 0, function () {\n var protocol, discoverableEndpoint, payloadString, headerString, _a, _b, headerQs, payloadQs, awsRealTimeUrl, err_3;\n return __generator(this, function (_c) {\n switch (_c.label) {\n case 0:\n this.promiseArray.push({ res: res, rej: rej });\n if (!(this.socketStatus === SOCKET_STATUS.CLOSED)) return [3 /*break*/, 5];\n _c.label = 1;\n case 1:\n _c.trys.push([1, 4, , 5]);\n this.socketStatus = SOCKET_STATUS.CONNECTING;\n protocol = this.isSSLEnabled ? 'wss://' : 'ws://';\n discoverableEndpoint = appSyncGraphqlEndpoint\n .replace('https://', protocol)\n .replace('http://', protocol)\n .replace('appsync-api', 'appsync-realtime-api')\n .replace('gogi-beta', 'grt-beta');\n payloadString = '{}';\n _b = (_a = JSON).stringify;\n return [4 /*yield*/, this._awsRealTimeHeaderBasedAuth({\n authenticationType: authenticationType,\n payload: payloadString,\n canonicalUri: '/connect',\n apiKey: apiKey,\n appSyncGraphqlEndpoint: appSyncGraphqlEndpoint,\n region: region,\n })];\n case 2:\n headerString = _b.apply(_a, [_c.sent()]);\n headerQs = Buffer.from(headerString).toString('base64');\n payloadQs = Buffer.from(payloadString).toString('base64');\n awsRealTimeUrl = discoverableEndpoint + \"?header=\" + headerQs + \"&payload=\" + payloadQs;\n return [4 /*yield*/, this._initializeRetryableHandshake({ awsRealTimeUrl: awsRealTimeUrl })];\n case 3:\n _c.sent();\n this.promiseArray.forEach(function (_a) {\n var res = _a.res;\n logger.debug('Notifying connection successful');\n res();\n });\n this.socketStatus = SOCKET_STATUS.READY;\n this.promiseArray = [];\n return [3 /*break*/, 5];\n case 4:\n err_3 = _c.sent();\n this.promiseArray.forEach(function (_a) {\n var rej = _a.rej;\n return rej(err_3);\n });\n this.promiseArray = [];\n if (this.awsRealTimeSocket &&\n this.awsRealTimeSocket.readyState === WebSocket.OPEN) {\n this.awsRealTimeSocket.close(3001);\n }\n this.awsRealTimeSocket = null;\n this.socketStatus = SOCKET_STATUS.CLOSED;\n return [3 /*break*/, 5];\n case 5: return [2 /*return*/];\n }\n });\n }); });\n };\n AWSAppSyncRealTimeProvider.prototype._initializeRetryableHandshake = function (_a) {\n var awsRealTimeUrl = _a.awsRealTimeUrl;\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n logger.debug(\"Initializaling retryable Handshake\");\n return [4 /*yield*/, jitteredExponentialRetry(this._initializeHandshake.bind(this), [{ awsRealTimeUrl: awsRealTimeUrl }], MAX_DELAY_MS)];\n case 1:\n _b.sent();\n return [2 /*return*/];\n }\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype._initializeHandshake = function (_a) {\n var awsRealTimeUrl = _a.awsRealTimeUrl;\n return __awaiter(this, void 0, void 0, function () {\n var err_4, errorType, errorCode;\n var _this = this;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n logger.debug(\"Initializing handshake \" + awsRealTimeUrl);\n _b.label = 1;\n case 1:\n _b.trys.push([1, 4, , 5]);\n return [4 /*yield*/, (function () {\n return new Promise(function (res, rej) {\n var newSocket = new WebSocket(awsRealTimeUrl, 'graphql-ws');\n newSocket.onerror = function () {\n logger.debug(\"WebSocket connection error\");\n };\n newSocket.onclose = function () {\n rej(new Error('Connection handshake error'));\n };\n newSocket.onopen = function () {\n _this.awsRealTimeSocket = newSocket;\n return res();\n };\n });\n })()];\n case 2:\n _b.sent();\n // Step 2: wait for ack from AWS AppSyncReaTime after sending init\n return [4 /*yield*/, (function () {\n return new Promise(function (res, rej) {\n var ackOk = false;\n _this.awsRealTimeSocket.onerror = function (error) {\n logger.debug(\"WebSocket error \" + JSON.stringify(error));\n };\n _this.awsRealTimeSocket.onclose = function (event) {\n logger.debug(\"WebSocket closed \" + event.reason);\n rej(new Error(JSON.stringify(event)));\n };\n _this.awsRealTimeSocket.onmessage = function (message) {\n logger.debug(\"subscription message from AWS AppSyncRealTime: \" + message.data + \" \");\n var data = JSON.parse(message.data);\n var type = data.type, _a = data.payload, _b = (_a === void 0 ? {} : _a).connectionTimeoutMs, connectionTimeoutMs = _b === void 0 ? DEFAULT_KEEP_ALIVE_TIMEOUT : _b;\n if (type === MESSAGE_TYPES.GQL_CONNECTION_ACK) {\n ackOk = true;\n _this.keepAliveTimeout = connectionTimeoutMs;\n _this.awsRealTimeSocket.onmessage = _this._handleIncomingSubscriptionMessage.bind(_this);\n _this.awsRealTimeSocket.onerror = function (err) {\n logger.debug(err);\n _this._errorDisconnect(CONTROL_MSG.CONNECTION_CLOSED);\n };\n _this.awsRealTimeSocket.onclose = function (event) {\n logger.debug(\"WebSocket closed \" + event.reason);\n _this._errorDisconnect(CONTROL_MSG.CONNECTION_CLOSED);\n };\n res('Cool, connected to AWS AppSyncRealTime');\n return;\n }\n if (type === MESSAGE_TYPES.GQL_CONNECTION_ERROR) {\n var _c = data.payload, _d = (_c === void 0 ? {} : _c).errors, _e = __read(_d === void 0 ? [] : _d, 1), _f = _e[0], _g = _f === void 0 ? {} : _f, _h = _g.errorType, errorType = _h === void 0 ? '' : _h, _j = _g.errorCode, errorCode = _j === void 0 ? 0 : _j;\n rej({ errorType: errorType, errorCode: errorCode });\n }\n };\n var gqlInit = {\n type: MESSAGE_TYPES.GQL_CONNECTION_INIT,\n };\n _this.awsRealTimeSocket.send(JSON.stringify(gqlInit));\n function checkAckOk() {\n if (!ackOk) {\n rej(new Error(\"Connection timeout: ack from AWSRealTime was not received on \" + CONNECTION_INIT_TIMEOUT + \" ms\"));\n }\n }\n setTimeout(checkAckOk.bind(_this), CONNECTION_INIT_TIMEOUT);\n });\n })()];\n case 3:\n // Step 2: wait for ack from AWS AppSyncReaTime after sending init\n _b.sent();\n return [3 /*break*/, 5];\n case 4:\n err_4 = _b.sent();\n errorType = err_4.errorType, errorCode = err_4.errorCode;\n if (NON_RETRYABLE_CODES.includes(errorCode)) {\n throw new NonRetryableError(errorType);\n }\n else if (errorType) {\n throw new Error(errorType);\n }\n else {\n throw err_4;\n }\n return [3 /*break*/, 5];\n case 5: return [2 /*return*/];\n }\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype._awsRealTimeHeaderBasedAuth = function (_a) {\n var authenticationType = _a.authenticationType, payload = _a.payload, canonicalUri = _a.canonicalUri, appSyncGraphqlEndpoint = _a.appSyncGraphqlEndpoint, apiKey = _a.apiKey, region = _a.region;\n return __awaiter(this, void 0, void 0, function () {\n var headerHandler, handler, host, result;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n headerHandler = {\n API_KEY: this._awsRealTimeApiKeyHeader.bind(this),\n AWS_IAM: this._awsRealTimeIAMHeader.bind(this),\n OPENID_CONNECT: this._awsRealTimeOPENIDHeader.bind(this),\n AMAZON_COGNITO_USER_POOLS: this._awsRealTimeCUPHeader.bind(this),\n };\n handler = headerHandler[authenticationType];\n if (typeof handler !== 'function') {\n logger.debug(\"Authentication type \" + authenticationType + \" not supported\");\n return [2 /*return*/, ''];\n }\n host = url.parse(appSyncGraphqlEndpoint).host;\n return [4 /*yield*/, handler({\n payload: payload,\n canonicalUri: canonicalUri,\n appSyncGraphqlEndpoint: appSyncGraphqlEndpoint,\n apiKey: apiKey,\n region: region,\n host: host,\n })];\n case 1:\n result = _b.sent();\n return [2 /*return*/, result];\n }\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype._awsRealTimeCUPHeader = function (_a) {\n var host = _a.host;\n return __awaiter(this, void 0, void 0, function () {\n var session;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0: return [4 /*yield*/, Auth.currentSession()];\n case 1:\n session = _b.sent();\n return [2 /*return*/, {\n Authorization: session.getAccessToken().getJwtToken(),\n host: host,\n }];\n }\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype._awsRealTimeOPENIDHeader = function (_a) {\n var host = _a.host;\n return __awaiter(this, void 0, void 0, function () {\n var token, federatedInfo, currentUser;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0: return [4 /*yield*/, Cache.getItem('federatedInfo')];\n case 1:\n federatedInfo = _b.sent();\n if (!federatedInfo) return [3 /*break*/, 2];\n token = federatedInfo.token;\n return [3 /*break*/, 4];\n case 2: return [4 /*yield*/, Auth.currentAuthenticatedUser()];\n case 3:\n currentUser = _b.sent();\n if (currentUser) {\n token = currentUser.token;\n }\n _b.label = 4;\n case 4:\n if (!token) {\n throw new Error('No federated jwt');\n }\n return [2 /*return*/, {\n Authorization: token,\n host: host,\n }];\n }\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype._awsRealTimeApiKeyHeader = function (_a) {\n var apiKey = _a.apiKey, host = _a.host;\n return __awaiter(this, void 0, void 0, function () {\n var dt, dtStr;\n return __generator(this, function (_b) {\n dt = new Date();\n dtStr = dt.toISOString().replace(/[:\\-]|\\.\\d{3}/g, '');\n return [2 /*return*/, {\n host: host,\n 'x-amz-date': dtStr,\n 'x-api-key': apiKey,\n }];\n });\n });\n };\n AWSAppSyncRealTimeProvider.prototype._awsRealTimeIAMHeader = function (_a) {\n var payload = _a.payload, canonicalUri = _a.canonicalUri, appSyncGraphqlEndpoint = _a.appSyncGraphqlEndpoint, region = _a.region;\n return __awaiter(this, void 0, void 0, function () {\n var endpointInfo, credentialsOK, creds, request, signed_params;\n return __generator(this, function (_b) {\n switch (_b.label) {\n case 0:\n endpointInfo = {\n region: region,\n service: 'appsync',\n };\n return [4 /*yield*/, this._ensureCredentials()];\n case 1:\n credentialsOK = _b.sent();\n if (!credentialsOK) {\n throw new Error('No credentials');\n }\n return [4 /*yield*/, Credentials.get().then(function (credentials) { return ({\n secret_key: credentials.secretAccessKey,\n access_key: credentials.accessKeyId,\n session_token: credentials.sessionToken,\n }); })];\n case 2:\n creds = _b.sent();\n request = {\n url: \"\" + appSyncGraphqlEndpoint + canonicalUri,\n data: payload,\n method: 'POST',\n headers: __assign({}, AWS_APPSYNC_REALTIME_HEADERS),\n };\n signed_params = Signer.sign(request, creds, endpointInfo);\n return [2 /*return*/, signed_params.headers];\n }\n });\n });\n };\n /**\n * @private\n */\n AWSAppSyncRealTimeProvider.prototype._ensureCredentials = function () {\n return Credentials.get()\n .then(function (credentials) {\n if (!credentials)\n return false;\n var cred = Credentials.shear(credentials);\n logger.debug('set credentials for AWSAppSyncRealTimeProvider', cred);\n return true;\n })\n .catch(function (err) {\n logger.warn('ensure credentials error', err);\n return false;\n });\n };\n return AWSAppSyncRealTimeProvider;\n}(AbstractPubSubProvider));\nexport { AWSAppSyncRealTimeProvider };\n//# sourceMappingURL=AWSAppSyncRealTimeProvider.js.map","var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n};\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\n function verb(n) { return function (v) { return step([n, v]); }; }\n function step(op) {\n if (f) throw new TypeError(\"Generator is already executing.\");\n while (_) try {\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n if (y = 0, t) op = [op[0] & 2, t.value];\n switch (op[0]) {\n case 0: case 1: t = op; break;\n case 4: _.label++; return { value: op[1], done: false };\n case 5: _.label++; y = op[1]; op = [0]; continue;\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\n default:\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n if (t[2]) _.ops.pop();\n _.trys.pop(); continue;\n }\n op = body.call(thisArg, _);\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n }\n};\n/*\n * Copyright 2017-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n * http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\n// import '../Common/Polyfills';\nimport Observable from 'zen-observable-ts';\nimport { Amplify, browserOrNode, ConsoleLogger as Logger, INTERNAL_AWS_APPSYNC_PUBSUB_PROVIDER, INTERNAL_AWS_APPSYNC_REALTIME_PUBSUB_PROVIDER, } from '@aws-amplify/core';\nimport { AWSAppSyncProvider, AWSAppSyncRealTimeProvider } from './Providers';\nvar isNode = browserOrNode().isNode;\nvar logger = new Logger('PubSub');\nvar PubSubClass = /** @class */ (function () {\n /**\n * Initialize PubSub with AWS configurations\n *\n * @param {PubSubOptions} options - Configuration object for PubSub\n */\n function PubSubClass(options) {\n this._options = options;\n logger.debug('PubSub Options', this._options);\n this._pluggables = [];\n this.subscribe = this.subscribe.bind(this);\n }\n Object.defineProperty(PubSubClass.prototype, \"awsAppSyncProvider\", {\n /**\n * Lazy instantiate AWSAppSyncProvider when it is required by the API category\n */\n get: function () {\n if (!this._awsAppSyncProvider) {\n this._awsAppSyncProvider = new AWSAppSyncProvider(this._options);\n }\n return this._awsAppSyncProvider;\n },\n enumerable: true,\n configurable: true\n });\n Object.defineProperty(PubSubClass.prototype, \"awsAppSyncRealTimeProvider\", {\n /**\n * Lazy instantiate AWSAppSyncRealTimeProvider when it is required by the API category\n */\n get: function () {\n if (!this._awsAppSyncRealTimeProvider) {\n this._awsAppSyncRealTimeProvider = new AWSAppSyncRealTimeProvider(this._options);\n }\n return this._awsAppSyncRealTimeProvider;\n },\n enumerable: true,\n configurable: true\n });\n PubSubClass.prototype.getModuleName = function () {\n return 'PubSub';\n };\n /**\n * Configure PubSub part with configurations\n *\n * @param {PubSubOptions} config - Configuration for PubSub\n * @return {Object} - The current configuration\n */\n PubSubClass.prototype.configure = function (options) {\n var _this = this;\n var opt = options ? options.PubSub || options : {};\n logger.debug('configure PubSub', { opt: opt });\n this._options = Object.assign({}, this._options, opt);\n this._pluggables.map(function (pluggable) { return pluggable.configure(_this._options); });\n return this._options;\n };\n /**\n * add plugin into Analytics category\n * @param {Object} pluggable - an instance of the plugin\n */\n PubSubClass.prototype.addPluggable = function (pluggable) {\n return __awaiter(this, void 0, void 0, function () {\n var config;\n return __generator(this, function (_a) {\n if (pluggable && pluggable.getCategory() === 'PubSub') {\n this._pluggables.push(pluggable);\n config = pluggable.configure(this._options);\n return [2 /*return*/, config];\n }\n return [2 /*return*/];\n });\n });\n };\n PubSubClass.prototype.getProviderByName = function (providerName) {\n if (providerName === INTERNAL_AWS_APPSYNC_PUBSUB_PROVIDER) {\n return this.awsAppSyncProvider;\n }\n if (providerName === INTERNAL_AWS_APPSYNC_REALTIME_PUBSUB_PROVIDER) {\n return this.awsAppSyncRealTimeProvider;\n }\n return this._pluggables.find(function (pluggable) { return pluggable.getProviderName() === providerName; });\n };\n PubSubClass.prototype.getProviders = function (options) {\n if (options === void 0) { options = {}; }\n var providerName = options.provider;\n if (!providerName) {\n return this._pluggables;\n }\n var provider = this.getProviderByName(providerName);\n if (!provider) {\n throw new Error(\"Could not find provider named \" + providerName);\n }\n return [provider];\n };\n PubSubClass.prototype.publish = function (topics, msg, options) {\n return __awaiter(this, void 0, void 0, function () {\n return __generator(this, function (_a) {\n return [2 /*return*/, Promise.all(this.getProviders(options).map(function (provider) {\n return provider.publish(topics, msg, options);\n }))];\n });\n });\n };\n PubSubClass.prototype.subscribe = function (topics, options) {\n if (isNode && this._options && this._options.ssr) {\n throw new Error('Subscriptions are not supported for Server-Side Rendering (SSR)');\n }\n logger.debug('subscribe options', options);\n var providers = this.getProviders(options);\n return new Observable(function (observer) {\n var observables = providers.map(function (provider) { return ({\n provider: provider,\n observable: provider.subscribe(topics, options),\n }); });\n var subscriptions = observables.map(function (_a) {\n var provider = _a.provider, observable = _a.observable;\n return observable.subscribe({\n start: console.error,\n next: function (value) { return observer.next({ provider: provider, value: value }); },\n error: function (error) { return observer.error({ provider: provider, error: error }); },\n });\n });\n return function () {\n return subscriptions.forEach(function (subscription) { return subscription.unsubscribe(); });\n };\n });\n };\n return PubSubClass;\n}());\nexport { PubSubClass };\nexport var PubSub = new PubSubClass(null);\nAmplify.register(PubSub);\n//# sourceMappingURL=PubSub.js.map","/*\n * Copyright 2017-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n * http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { PubSub } from './PubSub';\nexport * from './Providers';\nvar CONTROL_MSG;\n(function (CONTROL_MSG) {\n CONTROL_MSG[\"CONNECTION_CLOSED\"] = \"Connection closed\";\n CONTROL_MSG[\"CONNECTION_FAILED\"] = \"Connection failed\";\n CONTROL_MSG[\"REALTIME_SUBSCRIPTION_INIT_ERROR\"] = \"AppSync Realtime subscription init error\";\n CONTROL_MSG[\"SUBSCRIPTION_ACK\"] = \"Subscription ack\";\n CONTROL_MSG[\"TIMEOUT_DISCONNECT\"] = \"Timeout disconnect\";\n})(CONTROL_MSG || (CONTROL_MSG = {}));\nexport { PubSub, CONTROL_MSG };\n/**\n * @deprecated use named import\n */\nexport default PubSub;\n//# sourceMappingURL=index.js.map","export var GRAPHQL_AUTH_MODE;\n(function (GRAPHQL_AUTH_MODE) {\n GRAPHQL_AUTH_MODE[\"API_KEY\"] = \"API_KEY\";\n GRAPHQL_AUTH_MODE[\"AWS_IAM\"] = \"AWS_IAM\";\n GRAPHQL_AUTH_MODE[\"OPENID_CONNECT\"] = \"OPENID_CONNECT\";\n GRAPHQL_AUTH_MODE[\"AMAZON_COGNITO_USER_POOLS\"] = \"AMAZON_COGNITO_USER_POOLS\";\n})(GRAPHQL_AUTH_MODE || (GRAPHQL_AUTH_MODE = {}));\nexport var GraphQLAuthError;\n(function (GraphQLAuthError) {\n GraphQLAuthError[\"NO_API_KEY\"] = \"No api-key configured\";\n GraphQLAuthError[\"NO_CURRENT_USER\"] = \"No current user\";\n GraphQLAuthError[\"NO_CREDENTIALS\"] = \"No credentials\";\n GraphQLAuthError[\"NO_FEDERATED_JWT\"] = \"No federated jwt\";\n})(GraphQLAuthError || (GraphQLAuthError = {}));\n//# sourceMappingURL=index.js.map","var __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n return new (P || (P = Promise))(function (resolve, reject) {\n function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n step((generator = generator.apply(thisArg, _arguments || [])).next());\n });\n};\nvar __generator = (this && this.__generator) || function (thisArg, body) {\n var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\n return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\n function verb(n) { return function (v) { return step([n, v]); }; }\n function step(op) {\n if (f) throw new TypeError(\"Generator is already executing.\");\n while (_) try {\n if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n if (y = 0, t) op = [op[0] & 2, t.value];\n switch (op[0]) {\n case 0: case 1: t = op; break;\n case 4: _.label++; return { value: op[1], done: false };\n case 5: _.label++; y = op[1]; op = [0]; continue;\n case 7: op = _.ops.pop(); _.trys.pop(); continue;\n default:\n if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\n if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\n if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\n if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\n if (t[2]) _.ops.pop();\n _.trys.pop(); continue;\n }\n op = body.call(thisArg, _);\n } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\n if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\n }\n};\nvar __rest = (this && this.__rest) || function (s, e) {\n var t = {};\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\n t[p] = s[p];\n if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\n for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\n t[p[i]] = s[p[i]];\n }\n return t;\n};\nvar __read = (this && this.__read) || function (o, n) {\n var m = typeof Symbol === \"function\" && o[Symbol.iterator];\n if (!m) return o;\n var i = m.call(o), r, ar = [], e;\n try {\n while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\n }\n catch (error) { e = { error: error }; }\n finally {\n try {\n if (r && !r.done && (m = i[\"return\"])) m.call(i);\n }\n finally { if (e) throw e.error; }\n }\n return ar;\n};\n/*\n * Copyright 2017-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n * http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { GraphQLError } from 'graphql/error/GraphQLError';\nimport { print } from 'graphql/language/printer';\nimport { parse } from 'graphql/language/parser';\nimport { Amplify, ConsoleLogger as Logger, Constants, Credentials, INTERNAL_AWS_APPSYNC_REALTIME_PUBSUB_PROVIDER, } from '@aws-amplify/core';\nimport PubSub from '@aws-amplify/pubsub';\nimport Auth from '@aws-amplify/auth';\nimport Cache from '@aws-amplify/cache';\nimport { GraphQLAuthError } from './types';\nimport { RestClient } from '@aws-amplify/api-rest';\nvar USER_AGENT_HEADER = 'x-amz-user-agent';\nvar logger = new Logger('GraphQLAPI');\nexport var graphqlOperation = function (query, variables) {\n if (variables === void 0) { variables = {}; }\n return ({\n query: query,\n variables: variables,\n });\n};\n/**\n * Export Cloud Logic APIs\n */\nvar GraphQLAPIClass = /** @class */ (function () {\n /**\n * Initialize GraphQL API with AWS configuration\n * @param {Object} options - Configuration object for API\n */\n function GraphQLAPIClass(options) {\n this._api = null;\n this.Auth = Auth;\n this.Cache = Cache;\n this.Credentials = Credentials;\n this._options = options;\n logger.debug('API Options', this._options);\n }\n GraphQLAPIClass.prototype.getModuleName = function () {\n return 'GraphQLAPI';\n };\n /**\n * Configure API\n * @param {Object} config - Configuration of the API\n * @return {Object} - The current configuration\n */\n GraphQLAPIClass.prototype.configure = function (options) {\n var _a = options || {}, _b = _a.API, API = _b === void 0 ? {} : _b, otherOptions = __rest(_a, [\"API\"]);\n var opt = __assign(__assign({}, otherOptions), API);\n logger.debug('configure GraphQL API', { opt: opt });\n if (opt['aws_project_region']) {\n opt = Object.assign({}, opt, {\n region: opt['aws_project_region'],\n header: {},\n });\n }\n if (typeof opt.graphql_headers !== 'undefined' &&\n typeof opt.graphql_headers !== 'function') {\n logger.warn('graphql_headers should be a function');\n opt.graphql_headers = undefined;\n }\n this._options = Object.assign({}, this._options, opt);\n this.createInstance();\n return this._options;\n };\n /**\n * Create an instance of API for the library\n * @return - A promise of true if Success\n */\n GraphQLAPIClass.prototype.createInstance = function () {\n logger.debug('create Rest instance');\n if (this._options) {\n this._api = new RestClient(this._options);\n // Share instance Credentials with client for SSR\n this._api.Credentials = this.Credentials;\n return true;\n }\n else {\n return Promise.reject('API not configured');\n }\n };\n GraphQLAPIClass.prototype._headerBasedAuth = function (defaultAuthenticationType) {\n return __awaiter(this, void 0, void 0, function () {\n var _a, aws_appsync_authenticationType, apiKey, authenticationType, headers, _b, credentialsOK, token, federatedInfo, currentUser, e_1, session, e_2;\n return __generator(this, function (_c) {\n switch (_c.label) {\n case 0:\n _a = this._options, aws_appsync_authenticationType = _a.aws_appsync_authenticationType, apiKey = _a.aws_appsync_apiKey;\n authenticationType = defaultAuthenticationType || aws_appsync_authenticationType || 'AWS_IAM';\n headers = {};\n _b = authenticationType;\n switch (_b) {\n case 'API_KEY': return [3 /*break*/, 1];\n case 'AWS_IAM': return [3 /*break*/, 2];\n case 'OPENID_CONNECT': return [3 /*break*/, 4];\n case 'AMAZON_COGNITO_USER_POOLS': return [3 /*break*/, 11];\n }\n return [3 /*break*/, 15];\n case 1:\n if (!apiKey) {\n throw new Error(GraphQLAuthError.NO_API_KEY);\n }\n headers = {\n Authorization: null,\n 'X-Api-Key': apiKey,\n };\n return [3 /*break*/, 16];\n case 2: return [4 /*yield*/, this._ensureCredentials()];\n case 3:\n credentialsOK = _c.sent();\n if (!credentialsOK) {\n throw new Error(GraphQLAuthError.NO_CREDENTIALS);\n }\n return [3 /*break*/, 16];\n case 4:\n _c.trys.push([4, 9, , 10]);\n token = void 0;\n return [4 /*yield*/, Cache.getItem('federatedInfo')];\n case 5:\n federatedInfo = _c.sent();\n if (!federatedInfo) return [3 /*break*/, 6];\n token = federatedInfo.token;\n return [3 /*break*/, 8];\n case 6: return [4 /*yield*/, Auth.currentAuthenticatedUser()];\n case 7:\n currentUser = _c.sent();\n if (currentUser) {\n token = currentUser.token;\n }\n _c.label = 8;\n case 8:\n if (!token) {\n throw new Error(GraphQLAuthError.NO_FEDERATED_JWT);\n }\n headers = {\n Authorization: token,\n };\n return [3 /*break*/, 10];\n case 9:\n e_1 = _c.sent();\n throw new Error(GraphQLAuthError.NO_CURRENT_USER);\n case 10: return [3 /*break*/, 16];\n case 11:\n _c.trys.push([11, 13, , 14]);\n return [4 /*yield*/, this.Auth.currentSession()];\n case 12:\n session = _c.sent();\n headers = {\n Authorization: session.getAccessToken().getJwtToken(),\n };\n return [3 /*break*/, 14];\n case 13:\n e_2 = _c.sent();\n throw new Error(GraphQLAuthError.NO_CURRENT_USER);\n case 14: return [3 /*break*/, 16];\n case 15:\n headers = {\n Authorization: null,\n };\n return [3 /*break*/, 16];\n case 16: return [2 /*return*/, headers];\n }\n });\n });\n };\n /**\n * to get the operation type\n * @param operation\n */\n GraphQLAPIClass.prototype.getGraphqlOperationType = function (operation) {\n var doc = parse(operation);\n var _a = __read(doc.definitions, 1), operationType = _a[0].operation;\n return operationType;\n };\n /**\n * Executes a GraphQL operation\n *\n * @param {GraphQLOptions} GraphQL Options\n * @param {object} additionalHeaders headers to merge in after any `graphql_headers` set in the config\n * @returns {Promise | Observable