1 | var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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2 | return new (P || (P = Promise))(function (resolve, reject) {
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3 | function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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4 | function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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5 | function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
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6 | step((generator = generator.apply(thisArg, _arguments || [])).next());
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7 | });
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8 | };
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9 | var __generator = (this && this.__generator) || function (thisArg, body) {
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10 | var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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11 | return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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12 | function verb(n) { return function (v) { return step([n, v]); }; }
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13 | function step(op) {
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14 | if (f) throw new TypeError("Generator is already executing.");
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15 | while (_) try {
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16 | 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;
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17 | if (y = 0, t) op = [op[0] & 2, t.value];
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18 | switch (op[0]) {
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19 | case 0: case 1: t = op; break;
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20 | case 4: _.label++; return { value: op[1], done: false };
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21 | case 5: _.label++; y = op[1]; op = [0]; continue;
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22 | case 7: op = _.ops.pop(); _.trys.pop(); continue;
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23 | default:
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24 | if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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25 | if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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26 | if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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27 | if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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28 | if (t[2]) _.ops.pop();
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29 | _.trys.pop(); continue;
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30 | }
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31 | op = body.call(thisArg, _);
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32 | } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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33 | if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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34 | }
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35 | };
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36 | Object.defineProperty(exports, "__esModule", { value: true });
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37 | var graphql_1 = require("graphql");
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38 | var transforms_1 = require("../transforms/transforms");
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39 | var AddArgumentsAsVariables_1 = require("../transforms/AddArgumentsAsVariables");
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40 | var FilterToSchema_1 = require("../transforms/FilterToSchema");
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41 | var AddTypenameToAbstract_1 = require("../transforms/AddTypenameToAbstract");
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42 | var CheckResultAndHandleErrors_1 = require("../transforms/CheckResultAndHandleErrors");
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43 | var mapAsyncIterator_1 = require("./mapAsyncIterator");
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44 | var ExpandAbstractTypes_1 = require("../transforms/ExpandAbstractTypes");
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45 | var ReplaceFieldWithFragment_1 = require("../transforms/ReplaceFieldWithFragment");
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46 | var ConvertEnumResponse_1 = require("../transforms/ConvertEnumResponse");
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47 | function delegateToSchema(options) {
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48 | var args = [];
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49 | for (var _i = 1; _i < arguments.length; _i++) {
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50 | args[_i - 1] = arguments[_i];
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51 | }
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52 | if (options instanceof graphql_1.GraphQLSchema) {
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53 | throw new Error('Passing positional arguments to delegateToSchema is a deprecated. ' +
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54 | 'Please pass named parameters instead.');
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55 | }
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56 | return delegateToSchemaImplementation(options);
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57 | }
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58 | exports.default = delegateToSchema;
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59 | function delegateToSchemaImplementation(options) {
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60 | return __awaiter(this, void 0, void 0, function () {
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61 | var info, _a, args, operation, rawDocument, rawRequest, transforms, processedRequest, errors, _b, executionResult;
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62 | return __generator(this, function (_c) {
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63 | switch (_c.label) {
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64 | case 0:
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65 | info = options.info, _a = options.args, args = _a === void 0 ? {} : _a;
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66 | operation = options.operation || info.operation.operation;
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67 | rawDocument = createDocument(options.fieldName, operation, info.fieldNodes, Object.keys(info.fragments).map(function (fragmentName) { return info.fragments[fragmentName]; }), info.operation.variableDefinitions, info.operation.name);
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68 | rawRequest = {
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69 | document: rawDocument,
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70 | variables: info.variableValues,
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71 | };
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72 | transforms = (options.transforms || []).concat([
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73 | new ExpandAbstractTypes_1.default(info.schema, options.schema),
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74 | ]);
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75 | if (info.mergeInfo && info.mergeInfo.fragments) {
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76 | transforms.push(new ReplaceFieldWithFragment_1.default(options.schema, info.mergeInfo.fragments));
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77 | }
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78 | transforms = transforms.concat([
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79 | new AddArgumentsAsVariables_1.default(options.schema, args),
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80 | new FilterToSchema_1.default(options.schema),
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81 | new AddTypenameToAbstract_1.default(options.schema),
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82 | new CheckResultAndHandleErrors_1.default(info, options.fieldName),
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83 | ]);
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84 | if (graphql_1.isEnumType(options.info.returnType)) {
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85 | transforms = transforms.concat(new ConvertEnumResponse_1.default(options.info.returnType));
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86 | }
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87 | processedRequest = transforms_1.applyRequestTransforms(rawRequest, transforms);
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88 | if (!options.skipValidation) {
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89 | errors = graphql_1.validate(options.schema, processedRequest.document);
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90 | if (errors.length > 0) {
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91 | throw errors;
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92 | }
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93 | }
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94 | if (!(operation === 'query' || operation === 'mutation')) return [3 , 2];
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95 | _b = transforms_1.applyResultTransforms;
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96 | return [4 , graphql_1.execute(options.schema, processedRequest.document, info.rootValue, options.context, processedRequest.variables)];
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97 | case 1: return [2 , _b.apply(void 0, [_c.sent(),
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98 | transforms])];
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99 | case 2:
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100 | if (!(operation === 'subscription')) return [3 , 4];
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101 | return [4 , graphql_1.subscribe(options.schema, processedRequest.document, info.rootValue, options.context, processedRequest.variables)];
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102 | case 3:
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103 | executionResult = (_c.sent());
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104 |
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105 | return [2 , mapAsyncIterator_1.default(executionResult, function (result) {
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106 | var _a;
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107 | var transformedResult = transforms_1.applyResultTransforms(result, transforms);
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108 | var subscriptionKey = Object.keys(result.data)[0];
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109 |
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110 |
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111 | return _a = {},
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112 | _a[subscriptionKey] = transformedResult,
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113 | _a;
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114 | })];
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115 | case 4: return [2 ];
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116 | }
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117 | });
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118 | });
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119 | }
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120 | function createDocument(targetField, targetOperation, originalSelections, fragments, variables, operationName) {
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121 | var selections = [];
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122 | var args = [];
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123 | originalSelections.forEach(function (field) {
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124 | var fieldSelections = field.selectionSet
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125 | ? field.selectionSet.selections
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126 | : [];
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127 | selections = selections.concat(fieldSelections);
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128 | args = args.concat(field.arguments || []);
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129 | });
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130 | var selectionSet = null;
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131 | if (selections.length > 0) {
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132 | selectionSet = {
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133 | kind: graphql_1.Kind.SELECTION_SET,
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134 | selections: selections,
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135 | };
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136 | }
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137 | var rootField = {
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138 | kind: graphql_1.Kind.FIELD,
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139 | alias: null,
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140 | arguments: args,
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141 | selectionSet: selectionSet,
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142 | name: {
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143 | kind: graphql_1.Kind.NAME,
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144 | value: targetField,
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145 | },
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146 | };
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147 | var rootSelectionSet = {
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148 | kind: graphql_1.Kind.SELECTION_SET,
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149 | selections: [rootField],
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150 | };
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151 | var operationDefinition = {
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152 | kind: graphql_1.Kind.OPERATION_DEFINITION,
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153 | operation: targetOperation,
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154 | variableDefinitions: variables,
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155 | selectionSet: rootSelectionSet,
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156 | name: operationName,
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157 | };
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158 | return {
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159 | kind: graphql_1.Kind.DOCUMENT,
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160 | definitions: [operationDefinition].concat(fragments),
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161 | };
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162 | }
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163 |
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