1 | 'use strict';
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2 |
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3 | Object.defineProperty(exports, '__esModule', { value: true });
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4 |
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5 | const graphql = require('graphql');
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6 | const utils = require('@graphql-tools/utils');
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7 | const execute_js = require('graphql/execution/execute.js');
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8 | const valueOrPromise = require('value-or-promise');
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9 | const batchExecute = require('@graphql-tools/batch-execute');
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10 |
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11 | function applySchemaTransforms(originalWrappingSchema, subschemaConfig, transformedSchema) {
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12 | const schemaTransforms = subschemaConfig.transforms;
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13 | if (schemaTransforms == null) {
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14 | return originalWrappingSchema;
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15 | }
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16 | return schemaTransforms.reduce((schema, transform) => transform.transformSchema != null
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17 | ? transform.transformSchema(schema, subschemaConfig, transformedSchema)
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18 | : schema, originalWrappingSchema);
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19 | }
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20 |
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21 | function isSubschema(value) {
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22 | return Boolean(value.transformedSchema);
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23 | }
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24 | class Subschema {
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25 | constructor(config) {
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26 | var _a;
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27 | this.schema = config.schema;
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28 | this.executor = config.executor;
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29 | this.batch = config.batch;
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30 | this.batchingOptions = config.batchingOptions;
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31 | this.createProxyingResolver = config.createProxyingResolver;
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32 | this.transforms = (_a = config.transforms) !== null && _a !== void 0 ? _a : [];
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33 | this.transformedSchema = applySchemaTransforms(this.schema, config);
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34 | this.merge = config.merge;
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35 | }
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36 | }
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37 |
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38 | function memoizeInfoAnd2Objects(fn) {
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39 | let cache1;
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40 | function memoized(a1, a2, a3) {
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41 | if (!cache1) {
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42 | cache1 = new WeakMap();
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43 | const cache2 = new WeakMap();
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44 | cache1.set(a1.fieldNodes, cache2);
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45 | const cache3 = new WeakMap();
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46 | cache2.set(a2, cache3);
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47 | const newValue = fn(a1, a2, a3);
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48 | cache3.set(a3, newValue);
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49 | return newValue;
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50 | }
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51 | let cache2 = cache1.get(a1.fieldNodes);
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52 | if (!cache2) {
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53 | cache2 = new WeakMap();
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54 | cache1.set(a1.fieldNodes, cache2);
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55 | const cache3 = new WeakMap();
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56 | cache2.set(a2, cache3);
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57 | const newValue = fn(a1, a2, a3);
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58 | cache3.set(a3, newValue);
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59 | return newValue;
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60 | }
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61 | let cache3 = cache2.get(a2);
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62 | if (!cache3) {
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63 | cache3 = new WeakMap();
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64 | cache2.set(a2, cache3);
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65 | const newValue = fn(a1, a2, a3);
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66 | cache3.set(a3, newValue);
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67 | return newValue;
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68 | }
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69 | const cachedValue = cache3.get(a3);
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70 | if (cachedValue === undefined) {
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71 | const newValue = fn(a1, a2, a3);
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72 | cache3.set(a3, newValue);
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73 | return newValue;
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74 | }
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75 | return cachedValue;
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76 | }
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77 | return memoized;
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78 | }
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79 | function memoize4(fn) {
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80 | let cache1;
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81 | function memoized(a1, a2, a3, a4) {
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82 | if (!cache1) {
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83 | cache1 = new WeakMap();
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84 | const cache2 = new WeakMap();
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85 | cache1.set(a1, cache2);
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86 | const cache3 = new WeakMap();
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87 | cache2.set(a2, cache3);
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88 | const cache4 = new WeakMap();
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89 | cache3.set(a3, cache4);
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90 | const newValue = fn(a1, a2, a3, a4);
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91 | cache4.set(a4, newValue);
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92 | return newValue;
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93 | }
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94 | let cache2 = cache1.get(a1);
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95 | if (!cache2) {
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96 | cache2 = new WeakMap();
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97 | cache1.set(a1, cache2);
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98 | const cache3 = new WeakMap();
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99 | cache2.set(a2, cache3);
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100 | const cache4 = new WeakMap();
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101 | cache3.set(a3, cache4);
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102 | const newValue = fn(a1, a2, a3, a4);
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103 | cache4.set(a4, newValue);
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104 | return newValue;
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105 | }
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106 | let cache3 = cache2.get(a2);
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107 | if (!cache3) {
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108 | cache3 = new WeakMap();
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109 | cache2.set(a2, cache3);
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110 | const cache4 = new WeakMap();
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111 | cache3.set(a3, cache4);
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112 | const newValue = fn(a1, a2, a3, a4);
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113 | cache4.set(a4, newValue);
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114 | return newValue;
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115 | }
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116 | const cache4 = cache3.get(a3);
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117 | if (!cache4) {
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118 | const cache4 = new WeakMap();
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119 | cache3.set(a3, cache4);
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120 | const newValue = fn(a1, a2, a3, a4);
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121 | cache4.set(a4, newValue);
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122 | return newValue;
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123 | }
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124 | const cachedValue = cache4.get(a4);
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125 | if (cachedValue === undefined) {
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126 | const newValue = fn(a1, a2, a3, a4);
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127 | cache4.set(a4, newValue);
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128 | return newValue;
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129 | }
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130 | return cachedValue;
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131 | }
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132 | return memoized;
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133 | }
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134 | function memoize3(fn) {
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135 | let cache1;
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136 | function memoized(a1, a2, a3) {
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137 | if (!cache1) {
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138 | cache1 = new WeakMap();
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139 | const cache2 = new WeakMap();
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140 | cache1.set(a1, cache2);
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141 | const cache3 = new WeakMap();
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142 | cache2.set(a2, cache3);
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143 | const newValue = fn(a1, a2, a3);
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144 | cache3.set(a3, newValue);
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145 | return newValue;
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146 | }
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147 | let cache2 = cache1.get(a1);
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148 | if (!cache2) {
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149 | cache2 = new WeakMap();
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150 | cache1.set(a1, cache2);
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151 | const cache3 = new WeakMap();
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152 | cache2.set(a2, cache3);
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153 | const newValue = fn(a1, a2, a3);
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154 | cache3.set(a3, newValue);
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155 | return newValue;
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156 | }
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157 | let cache3 = cache2.get(a2);
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158 | if (!cache3) {
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159 | cache3 = new WeakMap();
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160 | cache2.set(a2, cache3);
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161 | const newValue = fn(a1, a2, a3);
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162 | cache3.set(a3, newValue);
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163 | return newValue;
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164 | }
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165 | const cachedValue = cache3.get(a3);
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166 | if (cachedValue === undefined) {
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167 | const newValue = fn(a1, a2, a3);
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168 | cache3.set(a3, newValue);
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169 | return newValue;
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170 | }
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171 | return cachedValue;
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172 | }
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173 | return memoized;
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174 | }
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175 | function memoize2(fn) {
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176 | let cache1;
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177 | function memoized(a1, a2) {
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178 | if (!cache1) {
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179 | cache1 = new WeakMap();
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180 | const cache2 = new WeakMap();
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181 | cache1.set(a1, cache2);
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182 | const newValue = fn(a1, a2);
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183 | cache2.set(a2, newValue);
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184 | return newValue;
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185 | }
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186 | let cache2 = cache1.get(a1);
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187 | if (!cache2) {
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188 | cache2 = new WeakMap();
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189 | cache1.set(a1, cache2);
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190 | const newValue = fn(a1, a2);
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191 | cache2.set(a2, newValue);
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192 | return newValue;
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193 | }
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194 | const cachedValue = cache2.get(a2);
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195 | if (cachedValue === undefined) {
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196 | const newValue = fn(a1, a2);
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197 | cache2.set(a2, newValue);
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198 | return newValue;
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199 | }
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200 | return cachedValue;
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201 | }
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202 | return memoized;
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203 | }
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204 |
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205 | function getDocumentMetadata(document) {
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206 | const operations = [];
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207 | const fragments = [];
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208 | const fragmentNames = new Set();
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209 | for (let i = 0; i < document.definitions.length; i++) {
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210 | const def = document.definitions[i];
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211 | if (def.kind === graphql.Kind.FRAGMENT_DEFINITION) {
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212 | fragments.push(def);
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213 | fragmentNames.add(def.name.value);
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214 | }
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215 | else if (def.kind === graphql.Kind.OPERATION_DEFINITION) {
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216 | operations.push(def);
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217 | }
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218 | }
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219 | return {
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220 | operations,
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221 | fragments,
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222 | fragmentNames,
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223 | };
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224 | }
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225 |
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226 | function prepareGatewayDocument(originalDocument, transformedSchema, returnType, infoSchema) {
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227 | const wrappedConcreteTypesDocument = wrapConcreteTypes(returnType, transformedSchema, originalDocument);
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228 | if (infoSchema == null) {
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229 | return wrappedConcreteTypesDocument;
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230 | }
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231 | const { possibleTypesMap, reversePossibleTypesMap, interfaceExtensionsMap, fieldNodesByType, fieldNodesByField, dynamicSelectionSetsByField, } = getSchemaMetaData(infoSchema, transformedSchema);
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232 | const { operations, fragments, fragmentNames } = getDocumentMetadata(wrappedConcreteTypesDocument);
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233 | const { expandedFragments, fragmentReplacements } = getExpandedFragments(fragments, fragmentNames, possibleTypesMap);
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234 | const typeInfo = new graphql.TypeInfo(transformedSchema);
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235 | const expandedDocument = {
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236 | kind: graphql.Kind.DOCUMENT,
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237 | definitions: [...operations, ...fragments, ...expandedFragments],
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238 | };
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239 | return graphql.visit(expandedDocument, graphql.visitWithTypeInfo(typeInfo, {
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240 | [graphql.Kind.SELECTION_SET]: node => visitSelectionSet(node, fragmentReplacements, transformedSchema, typeInfo, possibleTypesMap, reversePossibleTypesMap, interfaceExtensionsMap, fieldNodesByType, fieldNodesByField, dynamicSelectionSetsByField),
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241 | }),
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242 |
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243 |
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244 |
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245 | {
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246 | Name: [],
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247 | Document: ['definitions'],
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248 | OperationDefinition: ['selectionSet'],
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249 | VariableDefinition: [],
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250 | Variable: [],
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251 | SelectionSet: ['selections'],
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252 | Field: ['selectionSet'],
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253 | Argument: [],
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254 | FragmentSpread: [],
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255 | InlineFragment: ['selectionSet'],
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256 | FragmentDefinition: ['selectionSet'],
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257 | IntValue: [],
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258 | FloatValue: [],
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259 | StringValue: [],
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260 | BooleanValue: [],
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261 | NullValue: [],
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262 | EnumValue: [],
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263 | ListValue: [],
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264 | ObjectValue: [],
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265 | ObjectField: [],
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266 | Directive: [],
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267 | NamedType: [],
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268 | ListType: [],
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269 | NonNullType: [],
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270 | SchemaDefinition: [],
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271 | OperationTypeDefinition: [],
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272 | ScalarTypeDefinition: [],
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273 | ObjectTypeDefinition: [],
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274 | FieldDefinition: [],
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275 | InputValueDefinition: [],
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276 | InterfaceTypeDefinition: [],
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277 | UnionTypeDefinition: [],
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278 | EnumTypeDefinition: [],
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279 | EnumValueDefinition: [],
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280 | InputObjectTypeDefinition: [],
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281 | DirectiveDefinition: [],
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282 | SchemaExtension: [],
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283 | ScalarTypeExtension: [],
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284 | ObjectTypeExtension: [],
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285 | InterfaceTypeExtension: [],
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286 | UnionTypeExtension: [],
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287 | EnumTypeExtension: [],
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288 | InputObjectTypeExtension: [],
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289 | });
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290 | }
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291 | function visitSelectionSet(node, fragmentReplacements, schema, typeInfo, possibleTypesMap, reversePossibleTypesMap, interfaceExtensionsMap, fieldNodesByType, fieldNodesByField, dynamicSelectionSetsByField) {
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292 | var _a, _b;
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293 | const newSelections = new Set();
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294 | const maybeType = typeInfo.getParentType();
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295 | if (maybeType != null) {
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296 | const parentType = graphql.getNamedType(maybeType);
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297 | const parentTypeName = parentType.name;
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298 | const fieldNodes = fieldNodesByType[parentTypeName];
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299 | if (fieldNodes) {
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300 | for (const fieldNode of fieldNodes) {
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301 | newSelections.add(fieldNode);
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302 | }
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303 | }
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304 | const interfaceExtensions = interfaceExtensionsMap[parentType.name];
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305 | const interfaceExtensionFields = [];
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306 | for (const selection of node.selections) {
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307 | if (selection.kind === graphql.Kind.INLINE_FRAGMENT) {
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308 | if (selection.typeCondition != null) {
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309 | const possibleTypes = possibleTypesMap[selection.typeCondition.name.value];
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310 | if (possibleTypes == null) {
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311 | newSelections.add(selection);
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312 | continue;
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313 | }
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314 | for (const possibleTypeName of possibleTypes) {
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315 | const maybePossibleType = schema.getType(possibleTypeName);
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316 | if (maybePossibleType != null && utils.implementsAbstractType(schema, parentType, maybePossibleType)) {
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317 | newSelections.add(generateInlineFragment(possibleTypeName, selection.selectionSet));
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318 | }
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319 | }
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320 | }
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321 | }
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322 | else if (selection.kind === graphql.Kind.FRAGMENT_SPREAD) {
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323 | const fragmentName = selection.name.value;
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324 | if (!fragmentReplacements[fragmentName]) {
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325 | newSelections.add(selection);
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326 | continue;
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327 | }
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328 | for (const replacement of fragmentReplacements[fragmentName]) {
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329 | const typeName = replacement.typeName;
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330 | const maybeReplacementType = schema.getType(typeName);
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331 | if (maybeReplacementType != null && utils.implementsAbstractType(schema, parentType, maybeType)) {
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332 | newSelections.add({
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333 | kind: graphql.Kind.FRAGMENT_SPREAD,
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334 | name: {
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335 | kind: graphql.Kind.NAME,
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336 | value: replacement.fragmentName,
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337 | },
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338 | });
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339 | }
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340 | }
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341 | }
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342 | else {
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343 | const fieldName = selection.name.value;
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344 | const fieldNodes = (_a = fieldNodesByField[parentTypeName]) === null || _a === void 0 ? void 0 : _a[fieldName];
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345 | if (fieldNodes != null) {
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346 | for (const fieldNode of fieldNodes) {
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347 | newSelections.add(fieldNode);
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348 | }
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349 | }
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350 | const dynamicSelectionSets = (_b = dynamicSelectionSetsByField[parentTypeName]) === null || _b === void 0 ? void 0 : _b[fieldName];
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351 | if (dynamicSelectionSets != null) {
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352 | for (const selectionSetFn of dynamicSelectionSets) {
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353 | const selectionSet = selectionSetFn(selection);
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354 | if (selectionSet != null) {
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355 | for (const selection of selectionSet.selections) {
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356 | newSelections.add(selection);
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357 | }
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358 | }
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359 | }
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360 | }
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361 | if (interfaceExtensions === null || interfaceExtensions === void 0 ? void 0 : interfaceExtensions[fieldName]) {
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362 | interfaceExtensionFields.push(selection);
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363 | }
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364 | else {
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365 | newSelections.add(selection);
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366 | }
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367 | }
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368 | }
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369 | if (reversePossibleTypesMap[parentType.name]) {
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370 | newSelections.add({
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371 | kind: graphql.Kind.FIELD,
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372 | name: {
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373 | kind: graphql.Kind.NAME,
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374 | value: '__typename',
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375 | },
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376 | });
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377 | }
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378 | if (interfaceExtensionFields.length) {
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379 | const possibleTypes = possibleTypesMap[parentType.name];
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380 | if (possibleTypes != null) {
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381 | for (const possibleType of possibleTypes) {
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382 | newSelections.add(generateInlineFragment(possibleType, {
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383 | kind: graphql.Kind.SELECTION_SET,
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384 | selections: interfaceExtensionFields,
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385 | }));
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386 | }
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387 | }
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388 | }
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389 | return {
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390 | ...node,
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391 | selections: Array.from(newSelections),
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392 | };
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393 | }
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394 | return node;
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395 | }
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396 | function generateInlineFragment(typeName, selectionSet) {
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397 | return {
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398 | kind: graphql.Kind.INLINE_FRAGMENT,
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399 | typeCondition: {
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400 | kind: graphql.Kind.NAMED_TYPE,
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401 | name: {
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402 | kind: graphql.Kind.NAME,
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403 | value: typeName,
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404 | },
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405 | },
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406 | selectionSet,
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407 | };
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408 | }
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409 | const getSchemaMetaData = memoize2((sourceSchema, targetSchema) => {
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410 | var _a, _b, _c, _d, _e, _f, _g, _h, _j;
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411 | const typeMap = sourceSchema.getTypeMap();
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412 | const targetTypeMap = targetSchema.getTypeMap();
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413 | const possibleTypesMap = Object.create(null);
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414 | const interfaceExtensionsMap = Object.create(null);
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415 | for (const typeName in typeMap) {
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416 | const type = typeMap[typeName];
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417 | if (graphql.isAbstractType(type)) {
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418 | const targetType = targetTypeMap[typeName];
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419 | if (graphql.isInterfaceType(type) && graphql.isInterfaceType(targetType)) {
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420 | const targetTypeFields = targetType.getFields();
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421 | const sourceTypeFields = type.getFields();
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422 | const extensionFields = Object.create(null);
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423 | let isExtensionFieldsEmpty = true;
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424 | for (const fieldName in sourceTypeFields) {
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425 | if (!targetTypeFields[fieldName]) {
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426 | extensionFields[fieldName] = true;
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427 | isExtensionFieldsEmpty = false;
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428 | }
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429 | }
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430 | if (!isExtensionFieldsEmpty) {
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431 | interfaceExtensionsMap[typeName] = extensionFields;
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432 | }
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433 | }
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434 | if (interfaceExtensionsMap[typeName] || !graphql.isAbstractType(targetType)) {
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435 | const implementations = sourceSchema.getPossibleTypes(type);
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436 | possibleTypesMap[typeName] = [];
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437 | for (const impl of implementations) {
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438 | if (targetTypeMap[impl.name]) {
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439 | possibleTypesMap[typeName].push(impl.name);
|
440 | }
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441 | }
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442 | }
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443 | }
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444 | }
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445 | return {
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446 | possibleTypesMap,
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447 | reversePossibleTypesMap: reversePossibleTypesMap(possibleTypesMap),
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448 | interfaceExtensionsMap,
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449 | fieldNodesByType: (_c = (_b = (_a = sourceSchema.extensions) === null || _a === void 0 ? void 0 : _a['stitchingInfo']) === null || _b === void 0 ? void 0 : _b.fieldNodesByType) !== null && _c !== void 0 ? _c : {},
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450 | fieldNodesByField: (_f = (_e = (_d = sourceSchema.extensions) === null || _d === void 0 ? void 0 : _d['stitchingInfo']) === null || _e === void 0 ? void 0 : _e.fieldNodesByField) !== null && _f !== void 0 ? _f : {},
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451 | dynamicSelectionSetsByField: (_j = (_h = (_g = sourceSchema.extensions) === null || _g === void 0 ? void 0 : _g['stitchingInfo']) === null || _h === void 0 ? void 0 : _h.dynamicSelectionSetsByField) !== null && _j !== void 0 ? _j : {},
|
452 | };
|
453 | });
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454 | function reversePossibleTypesMap(possibleTypesMap) {
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455 | const result = Object.create(null);
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456 | for (const typeName in possibleTypesMap) {
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457 | const toTypeNames = possibleTypesMap[typeName];
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458 | for (const toTypeName of toTypeNames) {
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459 | if (!result[toTypeName]) {
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460 | result[toTypeName] = [];
|
461 | }
|
462 | result[toTypeName].push(typeName);
|
463 | }
|
464 | }
|
465 | return result;
|
466 | }
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467 | function getExpandedFragments(fragments, fragmentNames, possibleTypesMap) {
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468 | let fragmentCounter = 0;
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469 | function generateFragmentName(typeName) {
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470 | let fragmentName;
|
471 | do {
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472 | fragmentName = `_${typeName}_Fragment${fragmentCounter.toString()}`;
|
473 | fragmentCounter++;
|
474 | } while (fragmentNames.has(fragmentName));
|
475 | return fragmentName;
|
476 | }
|
477 | const expandedFragments = [];
|
478 | const fragmentReplacements = Object.create(null);
|
479 | for (const fragment of fragments) {
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480 | const possibleTypes = possibleTypesMap[fragment.typeCondition.name.value];
|
481 | if (possibleTypes != null) {
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482 | const fragmentName = fragment.name.value;
|
483 | fragmentReplacements[fragmentName] = [];
|
484 | for (const possibleTypeName of possibleTypes) {
|
485 | const name = generateFragmentName(possibleTypeName);
|
486 | fragmentNames.add(name);
|
487 | expandedFragments.push({
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488 | kind: graphql.Kind.FRAGMENT_DEFINITION,
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489 | name: {
|
490 | kind: graphql.Kind.NAME,
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491 | value: name,
|
492 | },
|
493 | typeCondition: {
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494 | kind: graphql.Kind.NAMED_TYPE,
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495 | name: {
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496 | kind: graphql.Kind.NAME,
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497 | value: possibleTypeName,
|
498 | },
|
499 | },
|
500 | selectionSet: fragment.selectionSet,
|
501 | });
|
502 | fragmentReplacements[fragmentName].push({
|
503 | fragmentName: name,
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504 | typeName: possibleTypeName,
|
505 | });
|
506 | }
|
507 | }
|
508 | }
|
509 | return {
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510 | expandedFragments,
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511 | fragmentReplacements,
|
512 | };
|
513 | }
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514 | function wrapConcreteTypes(returnType, targetSchema, document) {
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515 | const namedType = graphql.getNamedType(returnType);
|
516 | if (!graphql.isObjectType(namedType)) {
|
517 | return document;
|
518 | }
|
519 | const rootTypeNames = utils.getRootTypeNames(targetSchema);
|
520 | const typeInfo = new graphql.TypeInfo(targetSchema);
|
521 | return graphql.visit(document, graphql.visitWithTypeInfo(typeInfo, {
|
522 | [graphql.Kind.FRAGMENT_DEFINITION]: (node) => {
|
523 | const typeName = node.typeCondition.name.value;
|
524 | if (!rootTypeNames.has(typeName)) {
|
525 | return false;
|
526 | }
|
527 | },
|
528 | [graphql.Kind.FIELD]: (node) => {
|
529 | const type = typeInfo.getType();
|
530 | if (type != null && graphql.isAbstractType(graphql.getNamedType(type))) {
|
531 | return {
|
532 | ...node,
|
533 | selectionSet: {
|
534 | kind: graphql.Kind.SELECTION_SET,
|
535 | selections: [
|
536 | {
|
537 | kind: graphql.Kind.INLINE_FRAGMENT,
|
538 | typeCondition: {
|
539 | kind: graphql.Kind.NAMED_TYPE,
|
540 | name: {
|
541 | kind: graphql.Kind.NAME,
|
542 | value: namedType.name,
|
543 | },
|
544 | },
|
545 | selectionSet: node.selectionSet,
|
546 | },
|
547 | ],
|
548 | },
|
549 | };
|
550 | }
|
551 | },
|
552 | }),
|
553 |
|
554 |
|
555 |
|
556 | {
|
557 | Name: [],
|
558 | Document: ['definitions'],
|
559 | OperationDefinition: ['selectionSet'],
|
560 | VariableDefinition: [],
|
561 | Variable: [],
|
562 | SelectionSet: ['selections'],
|
563 | Field: [],
|
564 | Argument: [],
|
565 | FragmentSpread: [],
|
566 | InlineFragment: ['selectionSet'],
|
567 | FragmentDefinition: ['selectionSet'],
|
568 | IntValue: [],
|
569 | FloatValue: [],
|
570 | StringValue: [],
|
571 | BooleanValue: [],
|
572 | NullValue: [],
|
573 | EnumValue: [],
|
574 | ListValue: [],
|
575 | ObjectValue: [],
|
576 | ObjectField: [],
|
577 | Directive: [],
|
578 | NamedType: [],
|
579 | ListType: [],
|
580 | NonNullType: [],
|
581 | SchemaDefinition: [],
|
582 | OperationTypeDefinition: [],
|
583 | ScalarTypeDefinition: [],
|
584 | ObjectTypeDefinition: [],
|
585 | FieldDefinition: [],
|
586 | InputValueDefinition: [],
|
587 | InterfaceTypeDefinition: [],
|
588 | UnionTypeDefinition: [],
|
589 | EnumTypeDefinition: [],
|
590 | EnumValueDefinition: [],
|
591 | InputObjectTypeDefinition: [],
|
592 | DirectiveDefinition: [],
|
593 | SchemaExtension: [],
|
594 | ScalarTypeExtension: [],
|
595 | ObjectTypeExtension: [],
|
596 | InterfaceTypeExtension: [],
|
597 | UnionTypeExtension: [],
|
598 | EnumTypeExtension: [],
|
599 | InputObjectTypeExtension: [],
|
600 | });
|
601 | }
|
602 |
|
603 | function finalizeGatewayDocument(targetSchema, fragments, operations) {
|
604 | var _a;
|
605 | let usedVariables = [];
|
606 | let usedFragments = [];
|
607 | const newOperations = [];
|
608 | let newFragments = [];
|
609 | const validFragments = [];
|
610 | const validFragmentsWithType = Object.create(null);
|
611 | for (const fragment of fragments) {
|
612 | const typeName = fragment.typeCondition.name.value;
|
613 | const type = targetSchema.getType(typeName);
|
614 | if (type != null) {
|
615 | validFragments.push(fragment);
|
616 | validFragmentsWithType[fragment.name.value] = type;
|
617 | }
|
618 | }
|
619 | let fragmentSet = Object.create(null);
|
620 | for (const operation of operations) {
|
621 | const type = utils.getDefinedRootType(targetSchema, operation.operation);
|
622 | const { selectionSet, usedFragments: operationUsedFragments, usedVariables: operationUsedVariables, } = finalizeSelectionSet(targetSchema, type, validFragmentsWithType, operation.selectionSet);
|
623 | usedFragments = union(usedFragments, operationUsedFragments);
|
624 | const { usedVariables: collectedUsedVariables, newFragments: collectedNewFragments, fragmentSet: collectedFragmentSet, } = collectFragmentVariables(targetSchema, fragmentSet, validFragments, validFragmentsWithType, usedFragments);
|
625 | const operationOrFragmentVariables = union(operationUsedVariables, collectedUsedVariables);
|
626 | usedVariables = union(usedVariables, operationOrFragmentVariables);
|
627 | newFragments = collectedNewFragments;
|
628 | fragmentSet = collectedFragmentSet;
|
629 | const variableDefinitions = ((_a = operation.variableDefinitions) !== null && _a !== void 0 ? _a : []).filter((variable) => operationOrFragmentVariables.indexOf(variable.variable.name.value) !== -1);
|
630 | newOperations.push({
|
631 | kind: graphql.Kind.OPERATION_DEFINITION,
|
632 | operation: operation.operation,
|
633 | name: operation.name,
|
634 | directives: operation.directives,
|
635 | variableDefinitions,
|
636 | selectionSet,
|
637 | });
|
638 | }
|
639 | return {
|
640 | usedVariables,
|
641 | newDocument: {
|
642 | kind: graphql.Kind.DOCUMENT,
|
643 | definitions: [...newOperations, ...newFragments],
|
644 | },
|
645 | };
|
646 | }
|
647 | function finalizeGatewayRequest(originalRequest, delegationContext) {
|
648 | let { document, variables } = originalRequest;
|
649 | let { operations, fragments } = getDocumentMetadata(document);
|
650 | const { targetSchema, args } = delegationContext;
|
651 | if (args) {
|
652 | const requestWithNewVariables = addVariablesToRootFields(targetSchema, operations, args);
|
653 | operations = requestWithNewVariables.newOperations;
|
654 | variables = Object.assign({}, variables !== null && variables !== void 0 ? variables : {}, requestWithNewVariables.newVariables);
|
655 | }
|
656 | const { usedVariables, newDocument } = finalizeGatewayDocument(targetSchema, fragments, operations);
|
657 | const newVariables = {};
|
658 | if (variables != null) {
|
659 | for (const variableName of usedVariables) {
|
660 | const variableValue = variables[variableName];
|
661 | if (variableValue !== undefined) {
|
662 | newVariables[variableName] = variableValue;
|
663 | }
|
664 | }
|
665 | }
|
666 | return {
|
667 | ...originalRequest,
|
668 | document: newDocument,
|
669 | variables: newVariables,
|
670 | };
|
671 | }
|
672 | function addVariablesToRootFields(targetSchema, operations, args) {
|
673 | const newVariables = Object.create(null);
|
674 | const newOperations = operations.map((operation) => {
|
675 | var _a, _b;
|
676 | const variableDefinitionMap = ((_a = operation.variableDefinitions) !== null && _a !== void 0 ? _a : []).reduce((prev, def) => ({
|
677 | ...prev,
|
678 | [def.variable.name.value]: def,
|
679 | }), {});
|
680 | const type = utils.getDefinedRootType(targetSchema, operation.operation);
|
681 | const newSelectionSet = [];
|
682 | for (const selection of operation.selectionSet.selections) {
|
683 | if (selection.kind === graphql.Kind.FIELD) {
|
684 | const argumentNodes = (_b = selection.arguments) !== null && _b !== void 0 ? _b : [];
|
685 | const argumentNodeMap = argumentNodes.reduce((prev, argument) => ({
|
686 | ...prev,
|
687 | [argument.name.value]: argument,
|
688 | }), {});
|
689 | const targetField = type.getFields()[selection.name.value];
|
690 |
|
691 | if (targetField != null) {
|
692 | updateArguments(targetField, argumentNodeMap, variableDefinitionMap, newVariables, args);
|
693 | }
|
694 | newSelectionSet.push({
|
695 | ...selection,
|
696 | arguments: Object.values(argumentNodeMap),
|
697 | });
|
698 | }
|
699 | else {
|
700 | newSelectionSet.push(selection);
|
701 | }
|
702 | }
|
703 | return {
|
704 | ...operation,
|
705 | variableDefinitions: Object.values(variableDefinitionMap),
|
706 | selectionSet: {
|
707 | kind: graphql.Kind.SELECTION_SET,
|
708 | selections: newSelectionSet,
|
709 | },
|
710 | };
|
711 | });
|
712 | return {
|
713 | newOperations,
|
714 | newVariables,
|
715 | };
|
716 | }
|
717 | function updateArguments(targetField, argumentNodeMap, variableDefinitionMap, variableValues, newArgs) {
|
718 | const generateVariableName = utils.createVariableNameGenerator(variableDefinitionMap);
|
719 | for (const argument of targetField.args) {
|
720 | const argName = argument.name;
|
721 | const argType = argument.type;
|
722 | if (argName in newArgs) {
|
723 | utils.updateArgument(argumentNodeMap, variableDefinitionMap, variableValues, argName, generateVariableName(argName), argType, utils.serializeInputValue(argType, newArgs[argName]));
|
724 | }
|
725 | }
|
726 | }
|
727 | function collectFragmentVariables(targetSchema, fragmentSet, validFragments, validFragmentsWithType, usedFragments) {
|
728 | let remainingFragments = usedFragments.slice();
|
729 | let usedVariables = [];
|
730 | const newFragments = [];
|
731 | while (remainingFragments.length !== 0) {
|
732 | const nextFragmentName = remainingFragments.pop();
|
733 | const fragment = validFragments.find(fr => fr.name.value === nextFragmentName);
|
734 | if (fragment != null) {
|
735 | const name = nextFragmentName;
|
736 | const typeName = fragment.typeCondition.name.value;
|
737 | const type = targetSchema.getType(typeName);
|
738 | if (type == null) {
|
739 | throw new Error(`Fragment reference type "${typeName}", but the type is not contained within the target schema.`);
|
740 | }
|
741 | const { selectionSet, usedFragments: fragmentUsedFragments, usedVariables: fragmentUsedVariables, } = finalizeSelectionSet(targetSchema, type, validFragmentsWithType, fragment.selectionSet);
|
742 | remainingFragments = union(remainingFragments, fragmentUsedFragments);
|
743 | usedVariables = union(usedVariables, fragmentUsedVariables);
|
744 | if (name && !(name in fragmentSet)) {
|
745 | fragmentSet[name] = true;
|
746 | newFragments.push({
|
747 | kind: graphql.Kind.FRAGMENT_DEFINITION,
|
748 | name: {
|
749 | kind: graphql.Kind.NAME,
|
750 | value: name,
|
751 | },
|
752 | typeCondition: fragment.typeCondition,
|
753 | selectionSet,
|
754 | });
|
755 | }
|
756 | }
|
757 | }
|
758 | return {
|
759 | usedVariables,
|
760 | newFragments,
|
761 | fragmentSet,
|
762 | };
|
763 | }
|
764 | const filteredSelectionSetVisitorKeys = {
|
765 | SelectionSet: ['selections'],
|
766 | Field: ['selectionSet'],
|
767 | InlineFragment: ['selectionSet'],
|
768 | FragmentDefinition: ['selectionSet'],
|
769 | };
|
770 | const variablesVisitorKeys = {
|
771 | SelectionSet: ['selections'],
|
772 | Field: ['arguments', 'directives', 'selectionSet'],
|
773 | Argument: ['value'],
|
774 | InlineFragment: ['directives', 'selectionSet'],
|
775 | FragmentSpread: ['directives'],
|
776 | FragmentDefinition: ['selectionSet'],
|
777 | ObjectValue: ['fields'],
|
778 | ObjectField: ['name', 'value'],
|
779 | Directive: ['arguments'],
|
780 | };
|
781 | function finalizeSelectionSet(schema, type, validFragments, selectionSet) {
|
782 | const usedFragments = [];
|
783 | const usedVariables = [];
|
784 | const typeInfo = new graphql.TypeInfo(schema, undefined, type);
|
785 | const filteredSelectionSet = graphql.visit(selectionSet, graphql.visitWithTypeInfo(typeInfo, {
|
786 | [graphql.Kind.FIELD]: {
|
787 | enter: node => {
|
788 | const parentType = typeInfo.getParentType();
|
789 | if (graphql.isObjectType(parentType) || graphql.isInterfaceType(parentType)) {
|
790 | const fields = parentType.getFields();
|
791 | const field = node.name.value === '__typename' ? graphql.TypeNameMetaFieldDef : fields[node.name.value];
|
792 | if (!field) {
|
793 | return null;
|
794 | }
|
795 | const args = field.args != null ? field.args : [];
|
796 | const argsMap = Object.create(null);
|
797 | for (const arg of args) {
|
798 | argsMap[arg.name] = arg;
|
799 | }
|
800 | if (node.arguments != null) {
|
801 | const newArgs = [];
|
802 | for (const arg of node.arguments) {
|
803 | if (arg.name.value in argsMap) {
|
804 | newArgs.push(arg);
|
805 | }
|
806 | }
|
807 | if (newArgs.length !== node.arguments.length) {
|
808 | return {
|
809 | ...node,
|
810 | arguments: newArgs,
|
811 | };
|
812 | }
|
813 | }
|
814 | }
|
815 | },
|
816 | leave: node => {
|
817 | const type = typeInfo.getType();
|
818 | if (type == null) {
|
819 | throw new Error(`No type was found for field node ${node}.`);
|
820 | }
|
821 | const namedType = graphql.getNamedType(type);
|
822 | if (!schema.getType(namedType.name) == null) {
|
823 | return null;
|
824 | }
|
825 | if (graphql.isObjectType(namedType) || graphql.isInterfaceType(namedType)) {
|
826 | const selections = node.selectionSet != null ? node.selectionSet.selections : null;
|
827 | if (selections == null || selections.length === 0) {
|
828 | return null;
|
829 | }
|
830 | }
|
831 | },
|
832 | },
|
833 | [graphql.Kind.FRAGMENT_SPREAD]: {
|
834 | enter: node => {
|
835 | if (!(node.name.value in validFragments)) {
|
836 | return null;
|
837 | }
|
838 | const parentType = typeInfo.getParentType();
|
839 | const innerType = validFragments[node.name.value];
|
840 | if (!utils.implementsAbstractType(schema, parentType, innerType)) {
|
841 | return null;
|
842 | }
|
843 | usedFragments.push(node.name.value);
|
844 | },
|
845 | },
|
846 | [graphql.Kind.INLINE_FRAGMENT]: {
|
847 | enter: node => {
|
848 | if (node.typeCondition != null) {
|
849 | const parentType = typeInfo.getParentType();
|
850 | const innerType = schema.getType(node.typeCondition.name.value);
|
851 | if (!utils.implementsAbstractType(schema, parentType, innerType)) {
|
852 | return null;
|
853 | }
|
854 | }
|
855 | },
|
856 | },
|
857 | [graphql.Kind.SELECTION_SET]: {
|
858 | leave: node => {
|
859 | const parentType = typeInfo.getParentType();
|
860 | if (parentType != null && graphql.isAbstractType(parentType)) {
|
861 | const selections = node.selections.concat([
|
862 | {
|
863 | kind: graphql.Kind.FIELD,
|
864 | name: {
|
865 | kind: graphql.Kind.NAME,
|
866 | value: '__typename',
|
867 | },
|
868 | },
|
869 | ]);
|
870 | return {
|
871 | ...node,
|
872 | selections,
|
873 | };
|
874 | }
|
875 | },
|
876 | },
|
877 | }),
|
878 |
|
879 |
|
880 |
|
881 | filteredSelectionSetVisitorKeys);
|
882 | graphql.visit(filteredSelectionSet, {
|
883 | [graphql.Kind.VARIABLE]: variableNode => {
|
884 | usedVariables.push(variableNode.name.value);
|
885 | },
|
886 | },
|
887 |
|
888 |
|
889 |
|
890 | variablesVisitorKeys);
|
891 | return {
|
892 | selectionSet: filteredSelectionSet,
|
893 | usedFragments,
|
894 | usedVariables,
|
895 | };
|
896 | }
|
897 | function union(...arrays) {
|
898 | const cache = Object.create(null);
|
899 | const result = [];
|
900 | for (const array of arrays) {
|
901 | for (const item of array) {
|
902 | if (!(item in cache)) {
|
903 | cache[item] = true;
|
904 | result.push(item);
|
905 | }
|
906 | }
|
907 | }
|
908 | return result;
|
909 | }
|
910 |
|
911 | const UNPATHED_ERRORS_SYMBOL = Symbol('subschemaErrors');
|
912 | const OBJECT_SUBSCHEMA_SYMBOL = Symbol('initialSubschema');
|
913 | const FIELD_SUBSCHEMA_MAP_SYMBOL = Symbol('subschemaMap');
|
914 |
|
915 | const sortSubschemasByProxiability = memoize4(function sortSubschemasByProxiability(mergedTypeInfo, sourceSubschemaOrSourceSubschemas, targetSubschemas, fieldNodes) {
|
916 |
|
917 | const proxiableSubschemas = [];
|
918 | const nonProxiableSubschemas = [];
|
919 | for (const t of targetSubschemas) {
|
920 | const selectionSet = mergedTypeInfo.selectionSets.get(t);
|
921 | const fieldSelectionSets = mergedTypeInfo.fieldSelectionSets.get(t);
|
922 | if (selectionSet != null &&
|
923 | !subschemaTypesContainSelectionSet(mergedTypeInfo, sourceSubschemaOrSourceSubschemas, selectionSet)) {
|
924 | nonProxiableSubschemas.push(t);
|
925 | }
|
926 | else {
|
927 | if (fieldSelectionSets == null ||
|
928 | fieldNodes.every(fieldNode => {
|
929 | const fieldName = fieldNode.name.value;
|
930 | const fieldSelectionSet = fieldSelectionSets[fieldName];
|
931 | return (fieldSelectionSet == null ||
|
932 | subschemaTypesContainSelectionSet(mergedTypeInfo, sourceSubschemaOrSourceSubschemas, fieldSelectionSet));
|
933 | })) {
|
934 | proxiableSubschemas.push(t);
|
935 | }
|
936 | else {
|
937 | nonProxiableSubschemas.push(t);
|
938 | }
|
939 | }
|
940 | }
|
941 | return {
|
942 | proxiableSubschemas,
|
943 | nonProxiableSubschemas,
|
944 | };
|
945 | });
|
946 | const buildDelegationPlan = memoize3(function buildDelegationPlan(mergedTypeInfo, fieldNodes, proxiableSubschemas) {
|
947 | var _a;
|
948 | const { uniqueFields, nonUniqueFields } = mergedTypeInfo;
|
949 | const unproxiableFieldNodes = [];
|
950 |
|
951 | const delegationMap = new Map();
|
952 | for (const fieldNode of fieldNodes) {
|
953 | if (fieldNode.name.value === '__typename') {
|
954 | continue;
|
955 | }
|
956 |
|
957 | const uniqueSubschema = uniqueFields[fieldNode.name.value];
|
958 | if (uniqueSubschema != null) {
|
959 | if (!proxiableSubschemas.includes(uniqueSubschema)) {
|
960 | unproxiableFieldNodes.push(fieldNode);
|
961 | continue;
|
962 | }
|
963 | const existingSubschema = (_a = delegationMap.get(uniqueSubschema)) === null || _a === void 0 ? void 0 : _a.selections;
|
964 | if (existingSubschema != null) {
|
965 | existingSubschema.push(fieldNode);
|
966 | }
|
967 | else {
|
968 | delegationMap.set(uniqueSubschema, {
|
969 | kind: graphql.Kind.SELECTION_SET,
|
970 | selections: [fieldNode],
|
971 | });
|
972 | }
|
973 | continue;
|
974 | }
|
975 |
|
976 |
|
977 | let nonUniqueSubschemas = nonUniqueFields[fieldNode.name.value];
|
978 | if (nonUniqueSubschemas == null) {
|
979 | unproxiableFieldNodes.push(fieldNode);
|
980 | continue;
|
981 | }
|
982 | nonUniqueSubschemas = nonUniqueSubschemas.filter(s => proxiableSubschemas.includes(s));
|
983 | if (!nonUniqueSubschemas.length) {
|
984 | unproxiableFieldNodes.push(fieldNode);
|
985 | continue;
|
986 | }
|
987 | const existingSubschema = nonUniqueSubschemas.find(s => delegationMap.has(s));
|
988 | if (existingSubschema != null) {
|
989 |
|
990 | delegationMap.get(existingSubschema).selections.push(fieldNode);
|
991 | }
|
992 | else {
|
993 | delegationMap.set(nonUniqueSubschemas[0], {
|
994 | kind: graphql.Kind.SELECTION_SET,
|
995 | selections: [fieldNode],
|
996 | });
|
997 | }
|
998 | }
|
999 | return {
|
1000 | delegationMap,
|
1001 | unproxiableFieldNodes,
|
1002 | };
|
1003 | });
|
1004 | const combineSubschemas = memoize2(function combineSubschemas(subschemaOrSubschemas, additionalSubschemas) {
|
1005 | return Array.isArray(subschemaOrSubschemas)
|
1006 | ? subschemaOrSubschemas.concat(additionalSubschemas)
|
1007 | : [subschemaOrSubschemas].concat(additionalSubschemas);
|
1008 | });
|
1009 | function isExternalObject(data) {
|
1010 | return data[UNPATHED_ERRORS_SYMBOL] !== undefined;
|
1011 | }
|
1012 | function annotateExternalObject(object, errors, subschema) {
|
1013 | Object.defineProperties(object, {
|
1014 | [OBJECT_SUBSCHEMA_SYMBOL]: { value: subschema },
|
1015 | [FIELD_SUBSCHEMA_MAP_SYMBOL]: { value: Object.create(null) },
|
1016 | [UNPATHED_ERRORS_SYMBOL]: { value: errors },
|
1017 | });
|
1018 | return object;
|
1019 | }
|
1020 | function getSubschema(object, responseKey) {
|
1021 | var _a;
|
1022 | return (_a = object[FIELD_SUBSCHEMA_MAP_SYMBOL][responseKey]) !== null && _a !== void 0 ? _a : object[OBJECT_SUBSCHEMA_SYMBOL];
|
1023 | }
|
1024 | function getUnpathedErrors(object) {
|
1025 | return object[UNPATHED_ERRORS_SYMBOL];
|
1026 | }
|
1027 | async function mergeFields(mergedTypeInfo, typeName, object, fieldNodes, sourceSubschemaOrSourceSubschemas, targetSubschemas, context, info) {
|
1028 | var _a;
|
1029 | if (!fieldNodes.length) {
|
1030 | return object;
|
1031 | }
|
1032 | const { proxiableSubschemas, nonProxiableSubschemas } = sortSubschemasByProxiability(mergedTypeInfo, sourceSubschemaOrSourceSubschemas, targetSubschemas, fieldNodes);
|
1033 | const { delegationMap, unproxiableFieldNodes } = buildDelegationPlan(mergedTypeInfo, fieldNodes, proxiableSubschemas);
|
1034 | if (!delegationMap.size) {
|
1035 | return object;
|
1036 | }
|
1037 | const combinedErrors = object[UNPATHED_ERRORS_SYMBOL] || [];
|
1038 | const path = graphql.responsePathAsArray(info.path);
|
1039 | const newFieldSubschemaMap = (_a = object[FIELD_SUBSCHEMA_MAP_SYMBOL]) !== null && _a !== void 0 ? _a : Object.create(null);
|
1040 | const type = info.schema.getType(object.__typename);
|
1041 | const results = await Promise.all([...delegationMap.entries()].map(async ([s, selectionSet]) => {
|
1042 | var _a;
|
1043 | const resolver = mergedTypeInfo.resolvers.get(s);
|
1044 | if (resolver) {
|
1045 | let source;
|
1046 | try {
|
1047 | source = await resolver(object, context, info, s, selectionSet);
|
1048 | }
|
1049 | catch (error) {
|
1050 | source = error;
|
1051 | }
|
1052 | if (source instanceof Error || source === null) {
|
1053 | const fieldNodes = execute_js.collectFields({
|
1054 | schema: info.schema,
|
1055 | variableValues: {},
|
1056 | fragments: {},
|
1057 | }, type, selectionSet, Object.create(null), Object.create(null));
|
1058 | const nullResult = {};
|
1059 | for (const responseKey in fieldNodes) {
|
1060 | const combinedPath = [...path, responseKey];
|
1061 | if (source instanceof graphql.GraphQLError) {
|
1062 | nullResult[responseKey] = utils.relocatedError(source, combinedPath);
|
1063 | }
|
1064 | else if (source instanceof Error) {
|
1065 | nullResult[responseKey] = graphql.locatedError(source, fieldNodes[responseKey], combinedPath);
|
1066 | }
|
1067 | else {
|
1068 | nullResult[responseKey] = null;
|
1069 | }
|
1070 | }
|
1071 | source = nullResult;
|
1072 | }
|
1073 | else {
|
1074 | if (source[UNPATHED_ERRORS_SYMBOL]) {
|
1075 | combinedErrors.push(...source[UNPATHED_ERRORS_SYMBOL]);
|
1076 | }
|
1077 | }
|
1078 | const objectSubschema = source[OBJECT_SUBSCHEMA_SYMBOL];
|
1079 | const fieldSubschemaMap = source[FIELD_SUBSCHEMA_MAP_SYMBOL];
|
1080 | for (const responseKey in source) {
|
1081 | newFieldSubschemaMap[responseKey] = (_a = fieldSubschemaMap === null || fieldSubschemaMap === void 0 ? void 0 : fieldSubschemaMap[responseKey]) !== null && _a !== void 0 ? _a : objectSubschema;
|
1082 | }
|
1083 | return source;
|
1084 | }
|
1085 | }));
|
1086 | const combinedResult = Object.assign({}, object, ...results);
|
1087 | combinedResult[FIELD_SUBSCHEMA_MAP_SYMBOL] = newFieldSubschemaMap;
|
1088 | combinedResult[OBJECT_SUBSCHEMA_SYMBOL] = object[OBJECT_SUBSCHEMA_SYMBOL];
|
1089 | combinedResult[UNPATHED_ERRORS_SYMBOL] = combinedErrors;
|
1090 | return mergeFields(mergedTypeInfo, typeName, combinedResult, unproxiableFieldNodes, combineSubschemas(sourceSubschemaOrSourceSubschemas, proxiableSubschemas), nonProxiableSubschemas, context, info);
|
1091 | }
|
1092 | const subschemaTypesContainSelectionSet = memoize3(function subschemaTypesContainSelectionSetMemoized(mergedTypeInfo, sourceSubschemaOrSourceSubschemas, selectionSet) {
|
1093 | if (Array.isArray(sourceSubschemaOrSourceSubschemas)) {
|
1094 | return typesContainSelectionSet(sourceSubschemaOrSourceSubschemas.map(sourceSubschema => sourceSubschema.transformedSchema.getType(mergedTypeInfo.typeName)), selectionSet);
|
1095 | }
|
1096 | return typesContainSelectionSet([sourceSubschemaOrSourceSubschemas.transformedSchema.getType(mergedTypeInfo.typeName)], selectionSet);
|
1097 | });
|
1098 | function typesContainSelectionSet(types, selectionSet) {
|
1099 | var _a;
|
1100 | const fieldMaps = types.map(type => type.getFields());
|
1101 | for (const selection of selectionSet.selections) {
|
1102 | if (selection.kind === graphql.Kind.FIELD) {
|
1103 | const fields = fieldMaps.map(fieldMap => fieldMap[selection.name.value]).filter(field => field != null);
|
1104 | if (!fields.length) {
|
1105 | return false;
|
1106 | }
|
1107 | if (selection.selectionSet != null) {
|
1108 | return typesContainSelectionSet(fields.map(field => graphql.getNamedType(field.type)), selection.selectionSet);
|
1109 | }
|
1110 | }
|
1111 | else if (selection.kind === graphql.Kind.INLINE_FRAGMENT && ((_a = selection.typeCondition) === null || _a === void 0 ? void 0 : _a.name.value) === types[0].name) {
|
1112 | return typesContainSelectionSet(types, selection.selectionSet);
|
1113 | }
|
1114 | }
|
1115 | return true;
|
1116 | }
|
1117 |
|
1118 | function isSubschemaConfig(value) {
|
1119 | return Boolean(value === null || value === void 0 ? void 0 : value.schema);
|
1120 | }
|
1121 | function cloneSubschemaConfig(subschemaConfig) {
|
1122 | var _a, _b;
|
1123 | const newSubschemaConfig = {
|
1124 | ...subschemaConfig,
|
1125 | transforms: subschemaConfig.transforms != null ? [...subschemaConfig.transforms] : undefined,
|
1126 | };
|
1127 | if (newSubschemaConfig.merge != null) {
|
1128 | newSubschemaConfig.merge = { ...subschemaConfig.merge };
|
1129 | for (const typeName in newSubschemaConfig.merge) {
|
1130 | const mergedTypeConfig = (newSubschemaConfig.merge[typeName] = { ...((_b = (_a = subschemaConfig.merge) === null || _a === void 0 ? void 0 : _a[typeName]) !== null && _b !== void 0 ? _b : {}) });
|
1131 | if (mergedTypeConfig.entryPoints != null) {
|
1132 | mergedTypeConfig.entryPoints = mergedTypeConfig.entryPoints.map(entryPoint => ({ ...entryPoint }));
|
1133 | }
|
1134 | if (mergedTypeConfig.fields != null) {
|
1135 | const fields = (mergedTypeConfig.fields = { ...mergedTypeConfig.fields });
|
1136 | for (const fieldName in fields) {
|
1137 | fields[fieldName] = { ...fields[fieldName] };
|
1138 | }
|
1139 | }
|
1140 | }
|
1141 | }
|
1142 | return newSubschemaConfig;
|
1143 | }
|
1144 |
|
1145 | function collectSubFields(info, typeName) {
|
1146 | let subFieldNodes = Object.create(null);
|
1147 | const visitedFragmentNames = Object.create(null);
|
1148 | const type = info.schema.getType(typeName);
|
1149 | const partialExecutionContext = {
|
1150 | schema: info.schema,
|
1151 | variableValues: info.variableValues,
|
1152 | fragments: info.fragments,
|
1153 | };
|
1154 | for (const fieldNode of info.fieldNodes) {
|
1155 | if (fieldNode.selectionSet) {
|
1156 | subFieldNodes = execute_js.collectFields(partialExecutionContext, type, fieldNode.selectionSet, subFieldNodes, visitedFragmentNames);
|
1157 | }
|
1158 | }
|
1159 | return subFieldNodes;
|
1160 | }
|
1161 | const getFieldsNotInSubschema = memoizeInfoAnd2Objects(function getFieldsNotInSubschemaMemoized(info, subschema, mergedTypeInfo) {
|
1162 | var _a, _b;
|
1163 | const typeMap = isSubschemaConfig(subschema) ? mergedTypeInfo.typeMaps.get(subschema) : subschema.getTypeMap();
|
1164 | if (!typeMap) {
|
1165 | return [];
|
1166 | }
|
1167 | const typeName = mergedTypeInfo.typeName;
|
1168 | const fields = typeMap[typeName].getFields();
|
1169 | const subFieldNodes = collectSubFields(info, typeName);
|
1170 |
|
1171 | const stitchingInfo = (_a = info.schema.extensions) === null || _a === void 0 ? void 0 : _a['stitchingInfo'];
|
1172 | const fieldNodesByField = stitchingInfo === null || stitchingInfo === void 0 ? void 0 : stitchingInfo.fieldNodesByField;
|
1173 | const fieldsNotInSchema = new Set();
|
1174 | for (const responseKey in subFieldNodes) {
|
1175 | const subFieldNodesForResponseKey = subFieldNodes[responseKey];
|
1176 | const fieldName = subFieldNodesForResponseKey[0].name.value;
|
1177 | if (!fields[fieldName]) {
|
1178 | for (const subFieldNodeForResponseKey of subFieldNodesForResponseKey) {
|
1179 | fieldsNotInSchema.add(subFieldNodeForResponseKey);
|
1180 | }
|
1181 | }
|
1182 | const fieldNodesForField = (_b = fieldNodesByField === null || fieldNodesByField === void 0 ? void 0 : fieldNodesByField[typeName]) === null || _b === void 0 ? void 0 : _b[fieldName];
|
1183 | if (fieldNodesForField) {
|
1184 | for (const fieldNode of fieldNodesForField) {
|
1185 | if (!fields[fieldNode.name.value]) {
|
1186 | fieldsNotInSchema.add(fieldNode);
|
1187 | }
|
1188 | }
|
1189 | }
|
1190 | }
|
1191 | return Array.from(fieldsNotInSchema);
|
1192 | });
|
1193 |
|
1194 | function resolveExternalValue(result, unpathedErrors, subschema, context, info, returnType = getReturnType(info), skipTypeMerging) {
|
1195 | const type = graphql.getNullableType(returnType);
|
1196 | if (result instanceof Error) {
|
1197 | return result;
|
1198 | }
|
1199 | if (result == null) {
|
1200 | return reportUnpathedErrorsViaNull(unpathedErrors);
|
1201 | }
|
1202 | if ('parseValue' in type) {
|
1203 | return type.parseValue(result);
|
1204 | }
|
1205 | else if (graphql.isCompositeType(type)) {
|
1206 | return resolveExternalObject(type, result, unpathedErrors, subschema, context, info, skipTypeMerging);
|
1207 | }
|
1208 | else if (graphql.isListType(type)) {
|
1209 | return resolveExternalList(type, result, unpathedErrors, subschema, context, info, skipTypeMerging);
|
1210 | }
|
1211 | }
|
1212 | function resolveExternalObject(type, object, unpathedErrors, subschema, context, info, skipTypeMerging) {
|
1213 | var _a;
|
1214 |
|
1215 |
|
1216 | if (isExternalObject(object)) {
|
1217 | return object;
|
1218 | }
|
1219 | annotateExternalObject(object, unpathedErrors, subschema);
|
1220 | if (skipTypeMerging || info == null) {
|
1221 | return object;
|
1222 | }
|
1223 | const stitchingInfo = (_a = info.schema.extensions) === null || _a === void 0 ? void 0 : _a['stitchingInfo'];
|
1224 | if (stitchingInfo == null) {
|
1225 | return object;
|
1226 | }
|
1227 | let typeName;
|
1228 | if (graphql.isAbstractType(type)) {
|
1229 | const resolvedType = info.schema.getType(object.__typename);
|
1230 | if (resolvedType == null) {
|
1231 | throw new Error(`Unable to resolve type '${object.__typename}'. Did you forget to include a transform that renames types? Did you delegate to the original subschema rather that the subschema config object containing the transform?`);
|
1232 | }
|
1233 | typeName = resolvedType.name;
|
1234 | }
|
1235 | else {
|
1236 | typeName = type.name;
|
1237 | }
|
1238 | const mergedTypeInfo = stitchingInfo.mergedTypes[typeName];
|
1239 | let targetSubschemas;
|
1240 |
|
1241 |
|
1242 | if (mergedTypeInfo != null) {
|
1243 | targetSubschemas = mergedTypeInfo.targetSubschemas.get(subschema);
|
1244 | }
|
1245 |
|
1246 | if (!targetSubschemas) {
|
1247 | return object;
|
1248 | }
|
1249 | const fieldNodes = getFieldsNotInSubschema(info, subschema, mergedTypeInfo);
|
1250 | return mergeFields(mergedTypeInfo, typeName, object, fieldNodes, subschema, targetSubschemas, context, info);
|
1251 | }
|
1252 | function resolveExternalList(type, list, unpathedErrors, subschema, context, info, skipTypeMerging) {
|
1253 | return list.map(listMember => resolveExternalListMember(graphql.getNullableType(type.ofType), listMember, unpathedErrors, subschema, context, info, skipTypeMerging));
|
1254 | }
|
1255 | function resolveExternalListMember(type, listMember, unpathedErrors, subschema, context, info, skipTypeMerging) {
|
1256 | if (listMember instanceof Error) {
|
1257 | return listMember;
|
1258 | }
|
1259 | if (listMember == null) {
|
1260 | return reportUnpathedErrorsViaNull(unpathedErrors);
|
1261 | }
|
1262 | if (graphql.isLeafType(type)) {
|
1263 | return type.parseValue(listMember);
|
1264 | }
|
1265 | else if (graphql.isCompositeType(type)) {
|
1266 | return resolveExternalObject(type, listMember, unpathedErrors, subschema, context, info, skipTypeMerging);
|
1267 | }
|
1268 | else if (graphql.isListType(type)) {
|
1269 | return resolveExternalList(type, listMember, unpathedErrors, subschema, context, info, skipTypeMerging);
|
1270 | }
|
1271 | }
|
1272 | const reportedErrors = new WeakMap();
|
1273 | function reportUnpathedErrorsViaNull(unpathedErrors) {
|
1274 | if (unpathedErrors.length) {
|
1275 | const unreportedErrors = [];
|
1276 | for (const error of unpathedErrors) {
|
1277 | if (!reportedErrors.has(error)) {
|
1278 | unreportedErrors.push(error);
|
1279 | reportedErrors.set(error, true);
|
1280 | }
|
1281 | }
|
1282 | if (unreportedErrors.length) {
|
1283 | if (unreportedErrors.length === 1) {
|
1284 | return unreportedErrors[0];
|
1285 | }
|
1286 | const combinedError = new utils.AggregateError(unreportedErrors);
|
1287 |
|
1288 |
|
1289 |
|
1290 |
|
1291 | return graphql.locatedError(combinedError, undefined, unreportedErrors[0].path);
|
1292 | }
|
1293 | }
|
1294 | return null;
|
1295 | }
|
1296 | function getReturnType(info) {
|
1297 | if (info == null) {
|
1298 | throw new Error(`Return type cannot be inferred without a source schema.`);
|
1299 | }
|
1300 | return info.returnType;
|
1301 | }
|
1302 |
|
1303 | function checkResultAndHandleErrors(result, delegationContext) {
|
1304 | const { context, info, fieldName: responseKey = getResponseKey(info), subschema, returnType = getReturnType$1(info), skipTypeMerging, onLocatedError, } = delegationContext;
|
1305 | const { data, unpathedErrors } = mergeDataAndErrors(result.data == null ? undefined : result.data[responseKey], result.errors == null ? [] : result.errors, info != null && info.path ? graphql.responsePathAsArray(info.path) : undefined, onLocatedError);
|
1306 | return resolveExternalValue(data, unpathedErrors, subschema, context, info, returnType, skipTypeMerging);
|
1307 | }
|
1308 | function mergeDataAndErrors(data, errors, path, onLocatedError, index = 1) {
|
1309 | var _a;
|
1310 | if (data == null) {
|
1311 | if (!errors.length) {
|
1312 | return { data: null, unpathedErrors: [] };
|
1313 | }
|
1314 | if (errors.length === 1) {
|
1315 | const error = onLocatedError ? onLocatedError(errors[0]) : errors[0];
|
1316 | const newPath = path === undefined ? error.path : error.path === undefined ? path : path.concat(error.path.slice(1));
|
1317 | return { data: utils.relocatedError(errors[0], newPath), unpathedErrors: [] };
|
1318 | }
|
1319 |
|
1320 |
|
1321 |
|
1322 |
|
1323 | const newError = graphql.locatedError(new utils.AggregateError(errors), undefined, path);
|
1324 | return { data: newError, unpathedErrors: [] };
|
1325 | }
|
1326 | if (!errors.length) {
|
1327 | return { data, unpathedErrors: [] };
|
1328 | }
|
1329 | const unpathedErrors = [];
|
1330 | const errorMap = new Map();
|
1331 | for (const error of errors) {
|
1332 | const pathSegment = (_a = error.path) === null || _a === void 0 ? void 0 : _a[index];
|
1333 | if (pathSegment != null) {
|
1334 | let pathSegmentErrors = errorMap.get(pathSegment);
|
1335 | if (pathSegmentErrors === undefined) {
|
1336 | pathSegmentErrors = [error];
|
1337 | errorMap.set(pathSegment, pathSegmentErrors);
|
1338 | }
|
1339 | else {
|
1340 | pathSegmentErrors.push(error);
|
1341 | }
|
1342 | }
|
1343 | else {
|
1344 | unpathedErrors.push(error);
|
1345 | }
|
1346 | }
|
1347 | for (const [pathSegment, pathSegmentErrors] of errorMap) {
|
1348 | if (data[pathSegment] !== undefined) {
|
1349 | const { data: newData, unpathedErrors: newErrors } = mergeDataAndErrors(data[pathSegment], pathSegmentErrors, path, onLocatedError, index + 1);
|
1350 | data[pathSegment] = newData;
|
1351 | unpathedErrors.push(...newErrors);
|
1352 | }
|
1353 | else {
|
1354 | unpathedErrors.push(...pathSegmentErrors);
|
1355 | }
|
1356 | }
|
1357 | return { data, unpathedErrors };
|
1358 | }
|
1359 | function getResponseKey(info) {
|
1360 | if (info == null) {
|
1361 | throw new Error(`Data cannot be extracted from result without an explicit key or source schema.`);
|
1362 | }
|
1363 | return utils.getResponseKeyFromInfo(info);
|
1364 | }
|
1365 | function getReturnType$1(info) {
|
1366 | if (info == null) {
|
1367 | throw new Error(`Return type cannot be inferred without a source schema.`);
|
1368 | }
|
1369 | return info.returnType;
|
1370 | }
|
1371 |
|
1372 | class Transformer {
|
1373 | constructor(context) {
|
1374 | this.transformations = [];
|
1375 | this.delegationContext = context;
|
1376 | const transforms = context.transforms;
|
1377 | const delegationTransforms = transforms.slice().reverse();
|
1378 | for (const transform of delegationTransforms) {
|
1379 | this.addTransform(transform, {});
|
1380 | }
|
1381 | }
|
1382 | addTransform(transform, context = {}) {
|
1383 | this.transformations.push({ transform, context });
|
1384 | }
|
1385 | transformRequest(originalRequest) {
|
1386 | var _a;
|
1387 | let request = {
|
1388 | ...originalRequest,
|
1389 | document: prepareGatewayDocument(originalRequest.document, this.delegationContext.transformedSchema, this.delegationContext.returnType, (_a = this.delegationContext.info) === null || _a === void 0 ? void 0 : _a.schema),
|
1390 | };
|
1391 | for (const transformation of this.transformations) {
|
1392 | if (transformation.transform.transformRequest) {
|
1393 | request = transformation.transform.transformRequest(request, this.delegationContext, transformation.context);
|
1394 | }
|
1395 | }
|
1396 | return finalizeGatewayRequest(request, this.delegationContext);
|
1397 | }
|
1398 | transformResult(originalResult) {
|
1399 | let result = originalResult;
|
1400 |
|
1401 | for (let i = this.transformations.length - 1; i >= 0; i--) {
|
1402 | const transformation = this.transformations[i];
|
1403 | if (transformation.transform.transformResult) {
|
1404 | result = transformation.transform.transformResult(result, this.delegationContext, transformation.context);
|
1405 | }
|
1406 | }
|
1407 | return checkResultAndHandleErrors(result, this.delegationContext);
|
1408 | }
|
1409 | }
|
1410 |
|
1411 | function getDelegatingOperation(parentType, schema) {
|
1412 | if (parentType === schema.getMutationType()) {
|
1413 | return 'mutation';
|
1414 | }
|
1415 | else if (parentType === schema.getSubscriptionType()) {
|
1416 | return 'subscription';
|
1417 | }
|
1418 | return 'query';
|
1419 | }
|
1420 | function createRequestFromInfo({ info, rootValue, operationName, operation = getDelegatingOperation(info.parentType, info.schema), fieldName = info.fieldName, selectionSet, fieldNodes = info.fieldNodes, context, }) {
|
1421 | return createRequest({
|
1422 | sourceSchema: info.schema,
|
1423 | sourceParentType: info.parentType,
|
1424 | sourceFieldName: info.fieldName,
|
1425 | fragments: info.fragments,
|
1426 | variableDefinitions: info.operation.variableDefinitions,
|
1427 | variableValues: info.variableValues,
|
1428 | targetRootValue: rootValue,
|
1429 | targetOperationName: operationName,
|
1430 | targetOperation: operation,
|
1431 | targetFieldName: fieldName,
|
1432 | selectionSet,
|
1433 | fieldNodes,
|
1434 | context,
|
1435 | info,
|
1436 | });
|
1437 | }
|
1438 | function createRequest({ sourceSchema, sourceParentType, sourceFieldName, fragments, variableDefinitions, variableValues, targetRootValue, targetOperationName, targetOperation, targetFieldName, selectionSet, fieldNodes, context, info, }) {
|
1439 | var _a, _b;
|
1440 | let newSelectionSet;
|
1441 | const argumentNodeMap = Object.create(null);
|
1442 | if (selectionSet != null) {
|
1443 | newSelectionSet = selectionSet;
|
1444 | }
|
1445 | else {
|
1446 | const selections = [];
|
1447 | for (const fieldNode of fieldNodes || []) {
|
1448 | if (fieldNode.selectionSet) {
|
1449 | for (const selection of fieldNode.selectionSet.selections) {
|
1450 | selections.push(selection);
|
1451 | }
|
1452 | }
|
1453 | }
|
1454 | newSelectionSet = selections.length
|
1455 | ? {
|
1456 | kind: graphql.Kind.SELECTION_SET,
|
1457 | selections,
|
1458 | }
|
1459 | : undefined;
|
1460 | const args = (_a = fieldNodes === null || fieldNodes === void 0 ? void 0 : fieldNodes[0]) === null || _a === void 0 ? void 0 : _a.arguments;
|
1461 | if (args) {
|
1462 | for (const argNode of args) {
|
1463 | argumentNodeMap[argNode.name.value] = argNode;
|
1464 | }
|
1465 | }
|
1466 | }
|
1467 | const newVariables = Object.create(null);
|
1468 | const variableDefinitionMap = Object.create(null);
|
1469 | if (sourceSchema != null && variableDefinitions != null) {
|
1470 | for (const def of variableDefinitions) {
|
1471 | const varName = def.variable.name.value;
|
1472 | variableDefinitionMap[varName] = def;
|
1473 | const varType = graphql.typeFromAST(sourceSchema, def.type);
|
1474 | const serializedValue = utils.serializeInputValue(varType, variableValues === null || variableValues === void 0 ? void 0 : variableValues[varName]);
|
1475 | if (serializedValue !== undefined) {
|
1476 | newVariables[varName] = serializedValue;
|
1477 | }
|
1478 | }
|
1479 | }
|
1480 | if (sourceParentType != null && sourceFieldName != null) {
|
1481 | updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, newVariables);
|
1482 | }
|
1483 | const rootFieldName = targetFieldName !== null && targetFieldName !== void 0 ? targetFieldName : (_b = fieldNodes === null || fieldNodes === void 0 ? void 0 : fieldNodes[0]) === null || _b === void 0 ? void 0 : _b.name.value;
|
1484 | if (rootFieldName === undefined) {
|
1485 | throw new Error(`Either "targetFieldName" or a non empty "fieldNodes" array must be provided.`);
|
1486 | }
|
1487 | const rootfieldNode = {
|
1488 | kind: graphql.Kind.FIELD,
|
1489 | arguments: Object.values(argumentNodeMap),
|
1490 | name: {
|
1491 | kind: graphql.Kind.NAME,
|
1492 | value: rootFieldName,
|
1493 | },
|
1494 | selectionSet: newSelectionSet,
|
1495 | };
|
1496 | const operationName = targetOperationName
|
1497 | ? {
|
1498 | kind: graphql.Kind.NAME,
|
1499 | value: targetOperationName,
|
1500 | }
|
1501 | : undefined;
|
1502 | const operationDefinition = {
|
1503 | kind: graphql.Kind.OPERATION_DEFINITION,
|
1504 | name: operationName,
|
1505 | operation: targetOperation,
|
1506 | variableDefinitions: Object.values(variableDefinitionMap),
|
1507 | selectionSet: {
|
1508 | kind: graphql.Kind.SELECTION_SET,
|
1509 | selections: [rootfieldNode],
|
1510 | },
|
1511 | };
|
1512 | const definitions = [operationDefinition];
|
1513 | if (fragments != null) {
|
1514 | for (const fragmentName in fragments) {
|
1515 | const fragment = fragments[fragmentName];
|
1516 | definitions.push(fragment);
|
1517 | }
|
1518 | }
|
1519 | const document = {
|
1520 | kind: graphql.Kind.DOCUMENT,
|
1521 | definitions,
|
1522 | };
|
1523 | return {
|
1524 | document,
|
1525 | variables: newVariables,
|
1526 | rootValue: targetRootValue,
|
1527 | operationName: targetOperationName,
|
1528 | operationType: targetOperation,
|
1529 | context,
|
1530 | info,
|
1531 | };
|
1532 | }
|
1533 | function updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, variableValues) {
|
1534 | const generateVariableName = utils.createVariableNameGenerator(variableDefinitionMap);
|
1535 | const sourceField = sourceParentType.getFields()[sourceFieldName];
|
1536 | for (const argument of sourceField.args) {
|
1537 | const argName = argument.name;
|
1538 | const sourceArgType = argument.type;
|
1539 | if (argumentNodeMap[argName] === undefined) {
|
1540 | const defaultValue = argument.defaultValue;
|
1541 | if (defaultValue !== undefined) {
|
1542 | utils.updateArgument(argumentNodeMap, variableDefinitionMap, variableValues, argName, generateVariableName(argName), sourceArgType, utils.serializeInputValue(sourceArgType, defaultValue));
|
1543 | }
|
1544 | }
|
1545 | }
|
1546 | }
|
1547 |
|
1548 |
|
1549 |
|
1550 |
|
1551 |
|
1552 |
|
1553 |
|
1554 | function defaultMergedResolver(parent, args, context, info) {
|
1555 | if (!parent) {
|
1556 | return null;
|
1557 | }
|
1558 | const responseKey = utils.getResponseKeyFromInfo(info);
|
1559 |
|
1560 |
|
1561 | if (!isExternalObject(parent)) {
|
1562 | return graphql.defaultFieldResolver(parent, args, context, info);
|
1563 | }
|
1564 | const data = parent[responseKey];
|
1565 | const unpathedErrors = getUnpathedErrors(parent);
|
1566 | const subschema = getSubschema(parent, responseKey);
|
1567 | return resolveExternalValue(data, unpathedErrors, subschema, context, info);
|
1568 | }
|
1569 |
|
1570 | function delegateToSchema(options) {
|
1571 | const { info, schema, rootValue, operationName, operation = getDelegatingOperation(info.parentType, info.schema), fieldName = info.fieldName, selectionSet, fieldNodes, context, } = options;
|
1572 | const request = createRequestFromInfo({
|
1573 | info,
|
1574 | operation,
|
1575 | fieldName,
|
1576 | selectionSet,
|
1577 | fieldNodes,
|
1578 | rootValue: rootValue !== null && rootValue !== void 0 ? rootValue : schema.rootValue,
|
1579 | operationName,
|
1580 | context,
|
1581 | });
|
1582 | return delegateRequest({
|
1583 | ...options,
|
1584 | request,
|
1585 | });
|
1586 | }
|
1587 | function getDelegationReturnType(targetSchema, operation, fieldName) {
|
1588 | const rootType = utils.getDefinedRootType(targetSchema, operation);
|
1589 | return rootType.getFields()[fieldName].type;
|
1590 | }
|
1591 | function delegateRequest(options) {
|
1592 | const delegationContext = getDelegationContext(options);
|
1593 | const transformer = new Transformer(delegationContext);
|
1594 | const processedRequest = transformer.transformRequest(options.request);
|
1595 | if (options.validateRequest) {
|
1596 | validateRequest(delegationContext, processedRequest.document);
|
1597 | }
|
1598 | const executor = getExecutor(delegationContext);
|
1599 | return new valueOrPromise.ValueOrPromise(() => executor(processedRequest))
|
1600 | .then(originalResult => {
|
1601 | if (utils.isAsyncIterable(originalResult)) {
|
1602 |
|
1603 | return utils.mapAsyncIterator(originalResult, result => transformer.transformResult(result));
|
1604 | }
|
1605 | return transformer.transformResult(originalResult);
|
1606 | })
|
1607 | .resolve();
|
1608 | }
|
1609 | function getDelegationContext({ request, schema, fieldName, returnType, args, info, transforms = [], transformedSchema, skipTypeMerging = false, }) {
|
1610 | var _a, _b, _c, _d;
|
1611 | const { operationType: operation, context, operationName, document } = request;
|
1612 | let operationDefinition;
|
1613 | let targetFieldName;
|
1614 | if (fieldName == null) {
|
1615 | operationDefinition = graphql.getOperationAST(document, operationName);
|
1616 | if (operationDefinition == null) {
|
1617 | throw new Error('Cannot infer main operation from the provided document.');
|
1618 | }
|
1619 | targetFieldName = (operationDefinition === null || operationDefinition === void 0 ? void 0 : operationDefinition.selectionSet.selections[0]).name.value;
|
1620 | }
|
1621 | else {
|
1622 | targetFieldName = fieldName;
|
1623 | }
|
1624 | const stitchingInfo = (_a = info === null || info === void 0 ? void 0 : info.schema.extensions) === null || _a === void 0 ? void 0 : _a['stitchingInfo'];
|
1625 | const subschemaOrSubschemaConfig = (_b = stitchingInfo === null || stitchingInfo === void 0 ? void 0 : stitchingInfo.subschemaMap.get(schema)) !== null && _b !== void 0 ? _b : schema;
|
1626 | if (isSubschemaConfig(subschemaOrSubschemaConfig)) {
|
1627 | const targetSchema = subschemaOrSubschemaConfig.schema;
|
1628 | return {
|
1629 | subschema: schema,
|
1630 | subschemaConfig: subschemaOrSubschemaConfig,
|
1631 | targetSchema,
|
1632 | operation,
|
1633 | fieldName: targetFieldName,
|
1634 | args,
|
1635 | context,
|
1636 | info,
|
1637 | returnType: (_c = returnType !== null && returnType !== void 0 ? returnType : info === null || info === void 0 ? void 0 : info.returnType) !== null && _c !== void 0 ? _c : getDelegationReturnType(targetSchema, operation, targetFieldName),
|
1638 | transforms: subschemaOrSubschemaConfig.transforms != null
|
1639 | ? subschemaOrSubschemaConfig.transforms.concat(transforms)
|
1640 | : transforms,
|
1641 | transformedSchema: transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : (subschemaOrSubschemaConfig instanceof Subschema ? subschemaOrSubschemaConfig.transformedSchema : targetSchema),
|
1642 | skipTypeMerging,
|
1643 | };
|
1644 | }
|
1645 | return {
|
1646 | subschema: schema,
|
1647 | subschemaConfig: undefined,
|
1648 | targetSchema: subschemaOrSubschemaConfig,
|
1649 | operation,
|
1650 | fieldName: targetFieldName,
|
1651 | args,
|
1652 | context,
|
1653 | info,
|
1654 | returnType: (_d = returnType !== null && returnType !== void 0 ? returnType : info === null || info === void 0 ? void 0 : info.returnType) !== null && _d !== void 0 ? _d : getDelegationReturnType(subschemaOrSubschemaConfig, operation, targetFieldName),
|
1655 | transforms,
|
1656 | transformedSchema: transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : subschemaOrSubschemaConfig,
|
1657 | skipTypeMerging,
|
1658 | };
|
1659 | }
|
1660 | function validateRequest(delegationContext, document) {
|
1661 | const errors = graphql.validate(delegationContext.targetSchema, document);
|
1662 | if (errors.length > 0) {
|
1663 | if (errors.length > 1) {
|
1664 | const combinedError = new utils.AggregateError(errors);
|
1665 | throw combinedError;
|
1666 | }
|
1667 | const error = errors[0];
|
1668 | throw error.originalError || error;
|
1669 | }
|
1670 | }
|
1671 | function getExecutor(delegationContext) {
|
1672 | var _a, _b;
|
1673 | const { subschemaConfig, targetSchema, context } = delegationContext;
|
1674 | let executor = (subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.executor) || createDefaultExecutor(targetSchema);
|
1675 | if (subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.batch) {
|
1676 | const batchingOptions = subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.batchingOptions;
|
1677 | executor = batchExecute.getBatchingExecutor((_b = (_a = context !== null && context !== void 0 ? context : globalThis) !== null && _a !== void 0 ? _a : window) !== null && _b !== void 0 ? _b : global, executor, batchingOptions === null || batchingOptions === void 0 ? void 0 : batchingOptions.dataLoaderOptions, batchingOptions === null || batchingOptions === void 0 ? void 0 : batchingOptions.extensionsReducer);
|
1678 | }
|
1679 | return executor;
|
1680 | }
|
1681 | const defaultExecutorCache = new WeakMap();
|
1682 | function createDefaultExecutor(schema) {
|
1683 | let defaultExecutor = defaultExecutorCache.get(schema);
|
1684 | if (!defaultExecutor) {
|
1685 | defaultExecutor = function defaultExecutor({ document, context, variables, rootValue, operationName, operationType, }) {
|
1686 | const executionArgs = {
|
1687 | schema,
|
1688 | document,
|
1689 | contextValue: context,
|
1690 | variableValues: variables,
|
1691 | rootValue,
|
1692 | operationName,
|
1693 | };
|
1694 | if (operationType === 'subscription') {
|
1695 | return graphql.subscribe(executionArgs);
|
1696 | }
|
1697 | return graphql.execute(executionArgs);
|
1698 | };
|
1699 | defaultExecutorCache.set(schema, defaultExecutor);
|
1700 | }
|
1701 | return defaultExecutor;
|
1702 | }
|
1703 |
|
1704 | exports.Subschema = Subschema;
|
1705 | exports.Transformer = Transformer;
|
1706 | exports.annotateExternalObject = annotateExternalObject;
|
1707 | exports.applySchemaTransforms = applySchemaTransforms;
|
1708 | exports.cloneSubschemaConfig = cloneSubschemaConfig;
|
1709 | exports.createDefaultExecutor = createDefaultExecutor;
|
1710 | exports.createRequest = createRequest;
|
1711 | exports.createRequestFromInfo = createRequestFromInfo;
|
1712 | exports.defaultMergedResolver = defaultMergedResolver;
|
1713 | exports.delegateRequest = delegateRequest;
|
1714 | exports.delegateToSchema = delegateToSchema;
|
1715 | exports.getDelegatingOperation = getDelegatingOperation;
|
1716 | exports.getSubschema = getSubschema;
|
1717 | exports.getUnpathedErrors = getUnpathedErrors;
|
1718 | exports.isExternalObject = isExternalObject;
|
1719 | exports.isSubschema = isSubschema;
|
1720 | exports.isSubschemaConfig = isSubschemaConfig;
|
1721 | exports.mergeFields = mergeFields;
|
1722 | exports.resolveExternalValue = resolveExternalValue;
|