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