@graphql-tools/delegate - npm Package Compare versions

Comparing version 6.0.8-alpha-818e986.0 to 6.0.8-alpha-9f8f3e5.0

delegateToSchema.d.ts

 import { GraphQLSchema } from 'graphql';
 import { IDelegateToSchemaOptions, IDelegateRequestOptions } from './types';
 export declare function delegateToSchema(options: IDelegateToSchemaOptions | GraphQLSchema): any;
-export declare function delegateRequest({ request, schema: subschemaOrSubschemaConfig, rootValue, info, operation, fieldName, args, returnType, context, transforms, transformedSchema, skipValidation, skipTypeMerging, }: IDelegateRequestOptions): any;
+export declare function delegateRequest({ request, schema: subschemaOrSubschemaConfig, rootValue, info, operation, fieldName, args, returnType, context, transforms, transformedSchema, skipValidation, skipTypeMerging, binding, }: IDelegateRequestOptions): any;

index.cjs.js

@@ -8,2 +8,139 @@ 'use strict';
 
+const OBJECT_SUBSCHEMA_SYMBOL = Symbol('initialSubschema');
+const FIELD_SUBSCHEMA_MAP_SYMBOL = Symbol('subschemaMap');
+
+function getSubschema(result, responseKey) {
+    const subschema = result[FIELD_SUBSCHEMA_MAP_SYMBOL] && result[FIELD_SUBSCHEMA_MAP_SYMBOL][responseKey];
+    return subschema || result[OBJECT_SUBSCHEMA_SYMBOL];
+}
+function setObjectSubschema(result, subschema) {
+    result[OBJECT_SUBSCHEMA_SYMBOL] = subschema;
+}
+function isSubschemaConfig(value) {
+    return Boolean(value.schema);
+}
+function isSubschema(value) {
+    return Boolean(value.transformedSchema);
+}
+class Subschema {
+    constructor(config) {
+        var _a;
+        this.schema = config.schema;
+        this.executor = config.executor;
+        this.subscriber = config.subscriber;
+        this.createProxyingResolver = config.createProxyingResolver;
+        this.transforms = (_a = config.transforms) !== null && _a !== void 0 ? _a : [];
+        this.merge = config.merge;
+        this.transformedSchema = utils.applySchemaTransforms(this.schema, this.transforms);
+    }
+}
+
+function getDelegatingOperation(parentType, schema) {
+    if (parentType === schema.getMutationType()) {
+        return 'mutation';
+    }
+    else if (parentType === schema.getSubscriptionType()) {
+        return 'subscription';
+    }
+    return 'query';
+}
+function createRequestFromInfo({ info, operation = getDelegatingOperation(info.parentType, info.schema), fieldName = info.fieldName, selectionSet, fieldNodes = info.fieldNodes, }) {
+    return createRequest({
+        sourceSchema: info.schema,
+        sourceParentType: info.parentType,
+        sourceFieldName: info.fieldName,
+        fragments: info.fragments,
+        variableDefinitions: info.operation.variableDefinitions,
+        variableValues: info.variableValues,
+        targetOperation: operation,
+        targetFieldName: fieldName,
+        selectionSet,
+        fieldNodes,
+    });
+}
+function createRequest({ sourceSchema, sourceParentType, sourceFieldName, fragments, variableDefinitions, variableValues, targetOperation, targetFieldName, selectionSet, fieldNodes, }) {
+    var _a;
+    let newSelectionSet = selectionSet;
+    let argumentNodeMap;
+    if (fieldNodes == null) {
+        argumentNodeMap = Object.create(null);
+    }
+    else {
+        const selections = fieldNodes.reduce((acc, fieldNode) => (fieldNode.selectionSet != null ? acc.concat(fieldNode.selectionSet.selections) : acc), []);
+        newSelectionSet = selections.length
+            ? {
+                kind: graphql.Kind.SELECTION_SET,
+                selections,
+            }
+            : undefined;
+        argumentNodeMap = {};
+        const args = (_a = fieldNodes[0]) === null || _a === void 0 ? void 0 : _a.arguments;
+        if (args) {
+            argumentNodeMap = args.reduce((prev, curr) => ({
+                ...prev,
+                [curr.name.value]: curr,
+            }), argumentNodeMap);
+        }
+    }
+    const newVariables = Object.create(null);
+    const variableDefinitionMap = Object.create(null);
+    if (sourceSchema != null && variableDefinitions != null) {
+        variableDefinitions.forEach(def => {
+            const varName = def.variable.name.value;
+            variableDefinitionMap[varName] = def;
+            const varType = graphql.typeFromAST(sourceSchema, def.type);
+            const serializedValue = utils.serializeInputValue(varType, variableValues[varName]);
+            if (serializedValue !== undefined) {
+                newVariables[varName] = serializedValue;
+            }
+        });
+    }
+    if (sourceParentType != null) {
+        updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, newVariables);
+    }
+    const rootfieldNode = {
+        kind: graphql.Kind.FIELD,
+        arguments: Object.keys(argumentNodeMap).map(argName => argumentNodeMap[argName]),
+        name: {
+            kind: graphql.Kind.NAME,
+            value: targetFieldName || fieldNodes[0].name.value,
+        },
+        selectionSet: newSelectionSet,
+    };
+    const operationDefinition = {
+        kind: graphql.Kind.OPERATION_DEFINITION,
+        operation: targetOperation,
+        variableDefinitions: Object.keys(variableDefinitionMap).map(varName => variableDefinitionMap[varName]),
+        selectionSet: {
+            kind: graphql.Kind.SELECTION_SET,
+            selections: [rootfieldNode],
+        },
+    };
+    let definitions = [operationDefinition];
+    if (fragments != null) {
+        definitions = definitions.concat(Object.keys(fragments).map(fragmentName => fragments[fragmentName]));
+    }
+    const document = {
+        kind: graphql.Kind.DOCUMENT,
+        definitions,
+    };
+    return {
+        document,
+        variables: newVariables,
+    };
+}
+function updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, variableValues) {
+    const sourceField = sourceParentType.getFields()[sourceFieldName];
+    sourceField.args.forEach((argument) => {
+        const argName = argument.name;
+        const sourceArgType = argument.type;
+        if (argumentNodeMap[argName] === undefined) {
+            const defaultValue = argument.defaultValue;
+            if (defaultValue !== undefined) {
+                utils.updateArgument(argName, sourceArgType, argumentNodeMap, variableDefinitionMap, variableValues, utils.serializeInputValue(sourceArgType, defaultValue));
+            }
+        }
+    });
+}
+
 class ExpandAbstractTypes {
@@ -617,13 +754,2 @@ constructor(sourceSchema, targetSchema) {
 
-const OBJECT_SUBSCHEMA_SYMBOL = Symbol('initialSubschema');
-const FIELD_SUBSCHEMA_MAP_SYMBOL = Symbol('subschemaMap');
-
-function getSubschema(result, responseKey) {
-    const subschema = result[FIELD_SUBSCHEMA_MAP_SYMBOL] && result[FIELD_SUBSCHEMA_MAP_SYMBOL][responseKey];
-    return subschema || result[OBJECT_SUBSCHEMA_SYMBOL];
-}
-function setObjectSubschema(result, subschema) {
-    result[OBJECT_SUBSCHEMA_SYMBOL] = subschema;
-}
-
 function unwrapResult(parent, path) {
@@ -778,6 +904,2 @@ let newParent = parent;
 
-function isSubschemaConfig(value) {
-    return Boolean(value.schema);
-}
-
 function handleObject(type, object, errors, subschema, context, info, skipTypeMerging) {
@@ -973,109 +1095,68 @@ var _a;
 
-function getDelegatingOperation(parentType, schema) {
-    if (parentType === schema.getMutationType()) {
-        return 'mutation';
+function defaultDelegationBinding(delegationContext) {
+    var _a;
+    const { subschema: schemaOrSubschemaConfig, targetSchema, fieldName, args, context, info, returnType, transforms = [], skipTypeMerging, } = delegationContext;
+    const stitchingInfo = (_a = info === null || info === void 0 ? void 0 : info.schema.extensions) === null || _a === void 0 ? void 0 : _a.stitchingInfo;
+    let transformedSchema = stitchingInfo === null || stitchingInfo === void 0 ? void 0 : stitchingInfo.transformedSchemas.get(schemaOrSubschemaConfig);
+    if (transformedSchema != null) {
+        delegationContext.transformedSchema = transformedSchema;
     }
-    else if (parentType === schema.getSubscriptionType()) {
-        return 'subscription';
+    else {
+        transformedSchema = delegationContext.transformedSchema;
     }
-    return 'query';
-}
-function createRequestFromInfo({ info, operation = getDelegatingOperation(info.parentType, info.schema), fieldName = info.fieldName, selectionSet, fieldNodes = info.fieldNodes, }) {
-    return createRequest({
-        sourceSchema: info.schema,
-        sourceParentType: info.parentType,
-        sourceFieldName: info.fieldName,
-        fragments: info.fragments,
-        variableDefinitions: info.operation.variableDefinitions,
-        variableValues: info.variableValues,
-        targetOperation: operation,
-        targetFieldName: fieldName,
-        selectionSet,
-        fieldNodes,
-    });
-}
-function createRequest({ sourceSchema, sourceParentType, sourceFieldName, fragments, variableDefinitions, variableValues, targetOperation, targetFieldName, selectionSet, fieldNodes, }) {
-    var _a;
-    let newSelectionSet = selectionSet;
-    let argumentNodeMap;
-    if (fieldNodes == null) {
-        argumentNodeMap = Object.create(null);
+    let delegationTransforms = [
+        new CheckResultAndHandleErrors(info, fieldName, schemaOrSubschemaConfig, context, returnType, skipTypeMerging),
+    ];
+    if (stitchingInfo != null) {
+        delegationTransforms = delegationTransforms.concat([
+            new AddSelectionSetsByField(info.schema, stitchingInfo.selectionSetsByField),
+            new AddSelectionSetsByType(info.schema, stitchingInfo.selectionSetsByType),
+            new WrapConcreteTypes(returnType, transformedSchema),
+            new ExpandAbstractTypes(info.schema, transformedSchema),
+        ]);
     }
+    else if (info != null) {
+        delegationTransforms = delegationTransforms.concat([
+            new WrapConcreteTypes(returnType, transformedSchema),
+            new ExpandAbstractTypes(info.schema, transformedSchema),
+        ]);
+    }
     else {
-        const selections = fieldNodes.reduce((acc, fieldNode) => (fieldNode.selectionSet != null ? acc.concat(fieldNode.selectionSet.selections) : acc), []);
-        newSelectionSet = selections.length
-            ? {
-                kind: graphql.Kind.SELECTION_SET,
-                selections,
-            }
-            : undefined;
-        argumentNodeMap = {};
-        const args = (_a = fieldNodes[0]) === null || _a === void 0 ? void 0 : _a.arguments;
-        if (args) {
-            argumentNodeMap = args.reduce((prev, curr) => ({
-                ...prev,
-                [curr.name.value]: curr,
-            }), argumentNodeMap);
-        }
+        delegationTransforms.push(new WrapConcreteTypes(returnType, transformedSchema));
     }
-    const newVariables = Object.create(null);
-    const variableDefinitionMap = Object.create(null);
-    if (sourceSchema != null && variableDefinitions != null) {
-        variableDefinitions.forEach(def => {
-            const varName = def.variable.name.value;
-            variableDefinitionMap[varName] = def;
-            const varType = graphql.typeFromAST(sourceSchema, def.type);
-            const serializedValue = utils.serializeInputValue(varType, variableValues[varName]);
-            if (serializedValue !== undefined) {
-                newVariables[varName] = serializedValue;
-            }
-        });
+    delegationTransforms = delegationTransforms.concat(transforms.slice().reverse());
+    if (stitchingInfo != null) {
+        delegationTransforms.push(new AddFragmentsByField(targetSchema, stitchingInfo.fragmentsByField));
     }
-    if (sourceParentType != null) {
-        updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, newVariables);
+    if (args != null) {
+        delegationTransforms.push(new AddArgumentsAsVariables(targetSchema, args));
     }
-    const rootfieldNode = {
-        kind: graphql.Kind.FIELD,
-        arguments: Object.keys(argumentNodeMap).map(argName => argumentNodeMap[argName]),
-        name: {
-            kind: graphql.Kind.NAME,
-            value: targetFieldName || fieldNodes[0].name.value,
-        },
-        selectionSet: newSelectionSet,
-    };
-    const operationDefinition = {
-        kind: graphql.Kind.OPERATION_DEFINITION,
-        operation: targetOperation,
-        variableDefinitions: Object.keys(variableDefinitionMap).map(varName => variableDefinitionMap[varName]),
-        selectionSet: {
-            kind: graphql.Kind.SELECTION_SET,
-            selections: [rootfieldNode],
-        },
-    };
-    let definitions = [operationDefinition];
-    if (fragments != null) {
-        definitions = definitions.concat(Object.keys(fragments).map(fragmentName => fragments[fragmentName]));
+    delegationTransforms = delegationTransforms.concat([
+        new FilterToSchema(targetSchema),
+        new AddTypenameToAbstract(targetSchema),
+    ]);
+    return delegationTransforms;
+}
+
+class Transformer {
+    constructor(context, binding = defaultDelegationBinding) {
+        this.transformations = [];
+        this.delegationContext = context;
+        const delegationTransforms = binding(this.delegationContext);
+        delegationTransforms.forEach(transform => this.addTransform(transform, {}));
     }
-    const document = {
-        kind: graphql.Kind.DOCUMENT,
-        definitions,
-    };
-    return {
-        document,
-        variables: newVariables,
-    };
+    addTransform(transform, context = {}) {
+        this.transformations.push({ transform, context });
+    }
+    transformRequest(originalRequest) {
+        return this.transformations.reduce((request, transformation) => transformation.transform.transformRequest != null
+            ? transformation.transform.transformRequest(request, this.delegationContext, transformation.context)
+            : request, originalRequest);
+    }
+    transformResult(originalResult) {
+        return this.transformations.reduceRight((result, transformation) => transformation.transform.transformResult != null
+            ? transformation.transform.transformResult(result, this.delegationContext, transformation.context)
+            : result, originalResult);
+    }
 }
-function updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, variableValues) {
-    const sourceField = sourceParentType.getFields()[sourceFieldName];
-    sourceField.args.forEach((argument) => {
-        const argName = argument.name;
-        const sourceArgType = argument.type;
-        if (argumentNodeMap[argName] === undefined) {
-            const defaultValue = argument.defaultValue;
-            if (defaultValue !== undefined) {
-                utils.updateArgument(argName, sourceArgType, argumentNodeMap, variableDefinitionMap, variableValues, utils.serializeInputValue(sourceArgType, defaultValue));
-            }
-        }
-    });
-}
 
@@ -1102,6 +1183,3 @@ function delegateToSchema(options) {
 }
-function getDelegationReturnType(info, targetSchema, operation, fieldName) {
-    if (info != null) {
-        return info.returnType;
-    }
+function getDelegationReturnType(targetSchema, operation, fieldName) {
     let rootType;
@@ -1119,29 +1197,4 @@ if (operation === 'query') {
 }
-function buildDelegationTransforms(subschemaOrSubschemaConfig, info, context, targetSchema, fieldName, args, returnType, transforms, transformedSchema, skipTypeMerging) {
+function delegateRequest({ request, schema: subschemaOrSubschemaConfig, rootValue, info, operation, fieldName, args, returnType, context, transforms = [], transformedSchema, skipValidation, skipTypeMerging, binding, }) {
     var _a, _b;
-    const stitchingInfo = (_a = info === null || info === void 0 ? void 0 : info.schema.extensions) === null || _a === void 0 ? void 0 : _a.stitchingInfo;
-    let delegationTransforms = [
-        new CheckResultAndHandleErrors(info, fieldName, subschemaOrSubschemaConfig, context, returnType, skipTypeMerging),
-    ];
-    if (stitchingInfo != null) {
-        delegationTransforms.push(new AddSelectionSetsByField(info.schema, stitchingInfo.selectionSetsByField), new AddSelectionSetsByType(info.schema, stitchingInfo.selectionSetsByType));
-    }
-    const transformedTargetSchema = stitchingInfo == null
-        ? transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : targetSchema : (_b = transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : stitchingInfo.transformedSchemas.get(subschemaOrSubschemaConfig)) !== null && _b !== void 0 ? _b : targetSchema;
-    delegationTransforms.push(new WrapConcreteTypes(returnType, transformedTargetSchema));
-    if (info != null) {
-        delegationTransforms.push(new ExpandAbstractTypes(info.schema, transformedTargetSchema));
-    }
-    delegationTransforms = delegationTransforms.concat(transforms);
-    if (stitchingInfo != null) {
-        delegationTransforms.push(new AddFragmentsByField(targetSchema, stitchingInfo.fragmentsByField));
-    }
-    if (args != null) {
-        delegationTransforms.push(new AddArgumentsAsVariables(targetSchema, args));
-    }
-    delegationTransforms.push(new FilterToSchema(targetSchema), new AddTypenameToAbstract(targetSchema));
-    return delegationTransforms;
-}
-function delegateRequest({ request, schema: subschemaOrSubschemaConfig, rootValue, info, operation, fieldName, args, returnType, context, transforms = [], transformedSchema, skipValidation, skipTypeMerging, }) {
-    var _a;
     let operationDefinition;
@@ -1166,4 +1219,4 @@ let targetOperation;
     let targetRootValue;
-    let requestTransforms = transforms.slice();
     let subschemaConfig;
+    let allTransforms;
     if (isSubschemaConfig(subschemaOrSubschemaConfig)) {
@@ -1173,5 +1226,6 @@ subschemaConfig = subschemaOrSubschemaConfig;
         targetRootValue = (_a = rootValue !== null && rootValue !== void 0 ? rootValue : subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.rootValue) !== null && _a !== void 0 ? _a : info === null || info === void 0 ? void 0 : info.rootValue;
-        if (subschemaConfig.transforms != null) {
-            requestTransforms = requestTransforms.concat(subschemaConfig.transforms);
-        }
+        allTransforms =
+            subschemaOrSubschemaConfig.transforms != null
+                ? subschemaOrSubschemaConfig.transforms.concat(transforms)
+                : transforms;
     }
@@ -1181,15 +1235,21 @@ else {
         targetRootValue = rootValue !== null && rootValue !== void 0 ? rootValue : info === null || info === void 0 ? void 0 : info.rootValue;
+        allTransforms = transforms;
     }
-    const delegationTransforms = buildDelegationTransforms(subschemaOrSubschemaConfig, info, context, targetSchema, targetFieldName, args, returnType !== null && returnType !== void 0 ? returnType : getDelegationReturnType(info, targetSchema, targetOperation, targetFieldName), requestTransforms.reverse(), transformedSchema, skipTypeMerging);
-    const processedRequest = utils.applyRequestTransforms(request, delegationTransforms);
+    const delegationContext = {
+        subschema: subschemaOrSubschemaConfig,
+        targetSchema,
+        operation: targetOperation,
+        fieldName: targetFieldName,
+        args,
+        context,
+        info,
+        returnType: (_b = returnType !== null && returnType !== void 0 ? returnType : info === null || info === void 0 ? void 0 : info.returnType) !== null && _b !== void 0 ? _b : getDelegationReturnType(targetSchema, targetOperation, targetFieldName),
+        transforms: allTransforms,
+        transformedSchema: transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : targetSchema,
+        skipTypeMerging,
+    };
+    const transformer = new Transformer(delegationContext, binding);
+    const processedRequest = transformer.transformRequest(request);
     if (!skipValidation) {
-        const errors = graphql.validate(targetSchema, processedRequest.document);
-        if (errors.length > 0) {
-            if (errors.length > 1) {
-                const combinedError = new utils.CombinedError(errors);
-                throw combinedError;
-            }
-            const error = errors[0];
-            throw error.originalError || error;
-        }
+        validateRequest(targetSchema, processedRequest.document);
     }
@@ -1205,5 +1265,5 @@ if (targetOperation === 'query' || targetOperation === 'mutation') {
         if (executionResult instanceof Promise) {
-            return executionResult.then((originalResult) => utils.applyResultTransforms(originalResult, delegationTransforms));
+            return executionResult.then(originalResult => transformer.transformResult(originalResult));
         }
-        return utils.applyResultTransforms(executionResult, delegationTransforms);
+        return transformer.transformResult(executionResult);
     }
@@ -1219,14 +1279,20 @@ const subscriber = (subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.subscriber) || createDefaultSubscriber(targetSchema, (subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.rootValue) || targetRootValue);
             // "subscribe" to the subscription result and map the result through the transforms
-            return utils.mapAsyncIterator(subscriptionResult, result => {
-                const transformedResult = utils.applyResultTransforms(result, delegationTransforms);
-                // wrap with fieldName to return for an additional round of resolutioon
-                // with payload as rootValue
-                return {
-                    [targetFieldName]: transformedResult,
-                };
-            });
+            return utils.mapAsyncIterator(subscriptionResult, originalResult => ({
+                [targetFieldName]: transformer.transformResult(originalResult),
+            }));
         }
-        return utils.applyResultTransforms(subscriptionResult, delegationTransforms);
+        return transformer.transformResult(subscriptionResult);
     });
 }
+function validateRequest(targetSchema, document) {
+    const errors = graphql.validate(targetSchema, document);
+    if (errors.length > 0) {
+        if (errors.length > 1) {
+            const combinedError = new utils.CombinedError(errors);
+            throw combinedError;
+        }
+        const error = errors[0];
+        throw error.originalError || error;
+    }
+}
 function createDefaultExecutor(schema, rootValue) {
@@ -1373,2 +1439,3 @@ return ({ document, context, variables, info }) => graphql.execute({
 exports.ReplaceFieldWithFragment = ReplaceFieldWithFragment;
+exports.Subschema = Subschema;
 exports.checkResultAndHandleErrors = checkResultAndHandleErrors;
@@ -1378,2 +1445,3 @@ exports.createMergedResolver = createMergedResolver;
 exports.createRequestFromInfo = createRequestFromInfo;
+exports.defaultDelegationBinding = defaultDelegationBinding;
 exports.defaultMergedResolver = defaultMergedResolver;
@@ -1384,3 +1452,4 @@ exports.delegateRequest = delegateRequest;
 exports.handleResult = handleResult;
+exports.isSubschema = isSubschema;
 exports.isSubschemaConfig = isSubschemaConfig;
 //# sourceMappingURL=index.cjs.js.map

index.d.ts

@@ -6,4 +6,5 @@ export { delegateToSchema, delegateRequest } from './delegateToSchema';
 export { handleResult } from './results/handleResult';
-export { getSubschema } from './subschema';
+export { Subschema, isSubschema, isSubschemaConfig, getSubschema } from './Subschema';
+export * from './delegationBindings';
 export * from './transforms';
 export * from './types';

index.esm.js

@@ -1,4 +0,141 @@
-import { visit, visitWithTypeInfo, Kind, getNamedType, isAbstractType, TypeInfo, isObjectType, isInterfaceType, TypeNameMetaFieldDef, getNullableType, isLeafType, isCompositeType, isListType, typeFromAST, isSchema, getOperationAST, validate, execute, subscribe, defaultFieldResolver, parse } from 'graphql';
-import { implementsAbstractType, CombinedError, relocatedError, getErrorsByPathSegment, ERROR_SYMBOL, mergeDeep, getErrors, setErrors, slicedError, collectFields, getResponseKeyFromInfo, updateArgument, serializeInputValue, applyRequestTransforms, applyResultTransforms, mapAsyncIterator, concatInlineFragments } from '@graphql-tools/utils';
+import { Kind, typeFromAST, visit, visitWithTypeInfo, getNamedType, isAbstractType, TypeInfo, isObjectType, isInterfaceType, TypeNameMetaFieldDef, getNullableType, isLeafType, isCompositeType, isListType, isSchema, getOperationAST, execute, subscribe, validate, defaultFieldResolver, parse } from 'graphql';
+import { applySchemaTransforms, serializeInputValue, updateArgument, implementsAbstractType, CombinedError, relocatedError, getErrorsByPathSegment, ERROR_SYMBOL, mergeDeep, getErrors, setErrors, slicedError, collectFields, getResponseKeyFromInfo, mapAsyncIterator, concatInlineFragments } from '@graphql-tools/utils';
 
+const OBJECT_SUBSCHEMA_SYMBOL = Symbol('initialSubschema');
+const FIELD_SUBSCHEMA_MAP_SYMBOL = Symbol('subschemaMap');
+
+function getSubschema(result, responseKey) {
+    const subschema = result[FIELD_SUBSCHEMA_MAP_SYMBOL] && result[FIELD_SUBSCHEMA_MAP_SYMBOL][responseKey];
+    return subschema || result[OBJECT_SUBSCHEMA_SYMBOL];
+}
+function setObjectSubschema(result, subschema) {
+    result[OBJECT_SUBSCHEMA_SYMBOL] = subschema;
+}
+function isSubschemaConfig(value) {
+    return Boolean(value.schema);
+}
+function isSubschema(value) {
+    return Boolean(value.transformedSchema);
+}
+class Subschema {
+    constructor(config) {
+        var _a;
+        this.schema = config.schema;
+        this.executor = config.executor;
+        this.subscriber = config.subscriber;
+        this.createProxyingResolver = config.createProxyingResolver;
+        this.transforms = (_a = config.transforms) !== null && _a !== void 0 ? _a : [];
+        this.merge = config.merge;
+        this.transformedSchema = applySchemaTransforms(this.schema, this.transforms);
+    }
+}
+
+function getDelegatingOperation(parentType, schema) {
+    if (parentType === schema.getMutationType()) {
+        return 'mutation';
+    }
+    else if (parentType === schema.getSubscriptionType()) {
+        return 'subscription';
+    }
+    return 'query';
+}
+function createRequestFromInfo({ info, operation = getDelegatingOperation(info.parentType, info.schema), fieldName = info.fieldName, selectionSet, fieldNodes = info.fieldNodes, }) {
+    return createRequest({
+        sourceSchema: info.schema,
+        sourceParentType: info.parentType,
+        sourceFieldName: info.fieldName,
+        fragments: info.fragments,
+        variableDefinitions: info.operation.variableDefinitions,
+        variableValues: info.variableValues,
+        targetOperation: operation,
+        targetFieldName: fieldName,
+        selectionSet,
+        fieldNodes,
+    });
+}
+function createRequest({ sourceSchema, sourceParentType, sourceFieldName, fragments, variableDefinitions, variableValues, targetOperation, targetFieldName, selectionSet, fieldNodes, }) {
+    var _a;
+    let newSelectionSet = selectionSet;
+    let argumentNodeMap;
+    if (fieldNodes == null) {
+        argumentNodeMap = Object.create(null);
+    }
+    else {
+        const selections = fieldNodes.reduce((acc, fieldNode) => (fieldNode.selectionSet != null ? acc.concat(fieldNode.selectionSet.selections) : acc), []);
+        newSelectionSet = selections.length
+            ? {
+                kind: Kind.SELECTION_SET,
+                selections,
+            }
+            : undefined;
+        argumentNodeMap = {};
+        const args = (_a = fieldNodes[0]) === null || _a === void 0 ? void 0 : _a.arguments;
+        if (args) {
+            argumentNodeMap = args.reduce((prev, curr) => ({
+                ...prev,
+                [curr.name.value]: curr,
+            }), argumentNodeMap);
+        }
+    }
+    const newVariables = Object.create(null);
+    const variableDefinitionMap = Object.create(null);
+    if (sourceSchema != null && variableDefinitions != null) {
+        variableDefinitions.forEach(def => {
+            const varName = def.variable.name.value;
+            variableDefinitionMap[varName] = def;
+            const varType = typeFromAST(sourceSchema, def.type);
+            const serializedValue = serializeInputValue(varType, variableValues[varName]);
+            if (serializedValue !== undefined) {
+                newVariables[varName] = serializedValue;
+            }
+        });
+    }
+    if (sourceParentType != null) {
+        updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, newVariables);
+    }
+    const rootfieldNode = {
+        kind: Kind.FIELD,
+        arguments: Object.keys(argumentNodeMap).map(argName => argumentNodeMap[argName]),
+        name: {
+            kind: Kind.NAME,
+            value: targetFieldName || fieldNodes[0].name.value,
+        },
+        selectionSet: newSelectionSet,
+    };
+    const operationDefinition = {
+        kind: Kind.OPERATION_DEFINITION,
+        operation: targetOperation,
+        variableDefinitions: Object.keys(variableDefinitionMap).map(varName => variableDefinitionMap[varName]),
+        selectionSet: {
+            kind: Kind.SELECTION_SET,
+            selections: [rootfieldNode],
+        },
+    };
+    let definitions = [operationDefinition];
+    if (fragments != null) {
+        definitions = definitions.concat(Object.keys(fragments).map(fragmentName => fragments[fragmentName]));
+    }
+    const document = {
+        kind: Kind.DOCUMENT,
+        definitions,
+    };
+    return {
+        document,
+        variables: newVariables,
+    };
+}
+function updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, variableValues) {
+    const sourceField = sourceParentType.getFields()[sourceFieldName];
+    sourceField.args.forEach((argument) => {
+        const argName = argument.name;
+        const sourceArgType = argument.type;
+        if (argumentNodeMap[argName] === undefined) {
+            const defaultValue = argument.defaultValue;
+            if (defaultValue !== undefined) {
+                updateArgument(argName, sourceArgType, argumentNodeMap, variableDefinitionMap, variableValues, serializeInputValue(sourceArgType, defaultValue));
+            }
+        }
+    });
+}
+
 class ExpandAbstractTypes {
@@ -612,13 +749,2 @@ constructor(sourceSchema, targetSchema) {
 
-const OBJECT_SUBSCHEMA_SYMBOL = Symbol('initialSubschema');
-const FIELD_SUBSCHEMA_MAP_SYMBOL = Symbol('subschemaMap');
-
-function getSubschema(result, responseKey) {
-    const subschema = result[FIELD_SUBSCHEMA_MAP_SYMBOL] && result[FIELD_SUBSCHEMA_MAP_SYMBOL][responseKey];
-    return subschema || result[OBJECT_SUBSCHEMA_SYMBOL];
-}
-function setObjectSubschema(result, subschema) {
-    result[OBJECT_SUBSCHEMA_SYMBOL] = subschema;
-}
-
 function unwrapResult(parent, path) {
@@ -773,6 +899,2 @@ let newParent = parent;
 
-function isSubschemaConfig(value) {
-    return Boolean(value.schema);
-}
-
 function handleObject(type, object, errors, subschema, context, info, skipTypeMerging) {
@@ -968,109 +1090,68 @@ var _a;
 
-function getDelegatingOperation(parentType, schema) {
-    if (parentType === schema.getMutationType()) {
-        return 'mutation';
+function defaultDelegationBinding(delegationContext) {
+    var _a;
+    const { subschema: schemaOrSubschemaConfig, targetSchema, fieldName, args, context, info, returnType, transforms = [], skipTypeMerging, } = delegationContext;
+    const stitchingInfo = (_a = info === null || info === void 0 ? void 0 : info.schema.extensions) === null || _a === void 0 ? void 0 : _a.stitchingInfo;
+    let transformedSchema = stitchingInfo === null || stitchingInfo === void 0 ? void 0 : stitchingInfo.transformedSchemas.get(schemaOrSubschemaConfig);
+    if (transformedSchema != null) {
+        delegationContext.transformedSchema = transformedSchema;
     }
-    else if (parentType === schema.getSubscriptionType()) {
-        return 'subscription';
+    else {
+        transformedSchema = delegationContext.transformedSchema;
     }
-    return 'query';
-}
-function createRequestFromInfo({ info, operation = getDelegatingOperation(info.parentType, info.schema), fieldName = info.fieldName, selectionSet, fieldNodes = info.fieldNodes, }) {
-    return createRequest({
-        sourceSchema: info.schema,
-        sourceParentType: info.parentType,
-        sourceFieldName: info.fieldName,
-        fragments: info.fragments,
-        variableDefinitions: info.operation.variableDefinitions,
-        variableValues: info.variableValues,
-        targetOperation: operation,
-        targetFieldName: fieldName,
-        selectionSet,
-        fieldNodes,
-    });
-}
-function createRequest({ sourceSchema, sourceParentType, sourceFieldName, fragments, variableDefinitions, variableValues, targetOperation, targetFieldName, selectionSet, fieldNodes, }) {
-    var _a;
-    let newSelectionSet = selectionSet;
-    let argumentNodeMap;
-    if (fieldNodes == null) {
-        argumentNodeMap = Object.create(null);
+    let delegationTransforms = [
+        new CheckResultAndHandleErrors(info, fieldName, schemaOrSubschemaConfig, context, returnType, skipTypeMerging),
+    ];
+    if (stitchingInfo != null) {
+        delegationTransforms = delegationTransforms.concat([
+            new AddSelectionSetsByField(info.schema, stitchingInfo.selectionSetsByField),
+            new AddSelectionSetsByType(info.schema, stitchingInfo.selectionSetsByType),
+            new WrapConcreteTypes(returnType, transformedSchema),
+            new ExpandAbstractTypes(info.schema, transformedSchema),
+        ]);
     }
+    else if (info != null) {
+        delegationTransforms = delegationTransforms.concat([
+            new WrapConcreteTypes(returnType, transformedSchema),
+            new ExpandAbstractTypes(info.schema, transformedSchema),
+        ]);
+    }
     else {
-        const selections = fieldNodes.reduce((acc, fieldNode) => (fieldNode.selectionSet != null ? acc.concat(fieldNode.selectionSet.selections) : acc), []);
-        newSelectionSet = selections.length
-            ? {
-                kind: Kind.SELECTION_SET,
-                selections,
-            }
-            : undefined;
-        argumentNodeMap = {};
-        const args = (_a = fieldNodes[0]) === null || _a === void 0 ? void 0 : _a.arguments;
-        if (args) {
-            argumentNodeMap = args.reduce((prev, curr) => ({
-                ...prev,
-                [curr.name.value]: curr,
-            }), argumentNodeMap);
-        }
+        delegationTransforms.push(new WrapConcreteTypes(returnType, transformedSchema));
     }
-    const newVariables = Object.create(null);
-    const variableDefinitionMap = Object.create(null);
-    if (sourceSchema != null && variableDefinitions != null) {
-        variableDefinitions.forEach(def => {
-            const varName = def.variable.name.value;
-            variableDefinitionMap[varName] = def;
-            const varType = typeFromAST(sourceSchema, def.type);
-            const serializedValue = serializeInputValue(varType, variableValues[varName]);
-            if (serializedValue !== undefined) {
-                newVariables[varName] = serializedValue;
-            }
-        });
+    delegationTransforms = delegationTransforms.concat(transforms.slice().reverse());
+    if (stitchingInfo != null) {
+        delegationTransforms.push(new AddFragmentsByField(targetSchema, stitchingInfo.fragmentsByField));
     }
-    if (sourceParentType != null) {
-        updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, newVariables);
+    if (args != null) {
+        delegationTransforms.push(new AddArgumentsAsVariables(targetSchema, args));
     }
-    const rootfieldNode = {
-        kind: Kind.FIELD,
-        arguments: Object.keys(argumentNodeMap).map(argName => argumentNodeMap[argName]),
-        name: {
-            kind: Kind.NAME,
-            value: targetFieldName || fieldNodes[0].name.value,
-        },
-        selectionSet: newSelectionSet,
-    };
-    const operationDefinition = {
-        kind: Kind.OPERATION_DEFINITION,
-        operation: targetOperation,
-        variableDefinitions: Object.keys(variableDefinitionMap).map(varName => variableDefinitionMap[varName]),
-        selectionSet: {
-            kind: Kind.SELECTION_SET,
-            selections: [rootfieldNode],
-        },
-    };
-    let definitions = [operationDefinition];
-    if (fragments != null) {
-        definitions = definitions.concat(Object.keys(fragments).map(fragmentName => fragments[fragmentName]));
+    delegationTransforms = delegationTransforms.concat([
+        new FilterToSchema(targetSchema),
+        new AddTypenameToAbstract(targetSchema),
+    ]);
+    return delegationTransforms;
+}
+
+class Transformer {
+    constructor(context, binding = defaultDelegationBinding) {
+        this.transformations = [];
+        this.delegationContext = context;
+        const delegationTransforms = binding(this.delegationContext);
+        delegationTransforms.forEach(transform => this.addTransform(transform, {}));
     }
-    const document = {
-        kind: Kind.DOCUMENT,
-        definitions,
-    };
-    return {
-        document,
-        variables: newVariables,
-    };
+    addTransform(transform, context = {}) {
+        this.transformations.push({ transform, context });
+    }
+    transformRequest(originalRequest) {
+        return this.transformations.reduce((request, transformation) => transformation.transform.transformRequest != null
+            ? transformation.transform.transformRequest(request, this.delegationContext, transformation.context)
+            : request, originalRequest);
+    }
+    transformResult(originalResult) {
+        return this.transformations.reduceRight((result, transformation) => transformation.transform.transformResult != null
+            ? transformation.transform.transformResult(result, this.delegationContext, transformation.context)
+            : result, originalResult);
+    }
 }
-function updateArgumentsWithDefaults(sourceParentType, sourceFieldName, argumentNodeMap, variableDefinitionMap, variableValues) {
-    const sourceField = sourceParentType.getFields()[sourceFieldName];
-    sourceField.args.forEach((argument) => {
-        const argName = argument.name;
-        const sourceArgType = argument.type;
-        if (argumentNodeMap[argName] === undefined) {
-            const defaultValue = argument.defaultValue;
-            if (defaultValue !== undefined) {
-                updateArgument(argName, sourceArgType, argumentNodeMap, variableDefinitionMap, variableValues, serializeInputValue(sourceArgType, defaultValue));
-            }
-        }
-    });
-}
 
@@ -1097,6 +1178,3 @@ function delegateToSchema(options) {
 }
-function getDelegationReturnType(info, targetSchema, operation, fieldName) {
-    if (info != null) {
-        return info.returnType;
-    }
+function getDelegationReturnType(targetSchema, operation, fieldName) {
     let rootType;
@@ -1114,29 +1192,4 @@ if (operation === 'query') {
 }
-function buildDelegationTransforms(subschemaOrSubschemaConfig, info, context, targetSchema, fieldName, args, returnType, transforms, transformedSchema, skipTypeMerging) {
+function delegateRequest({ request, schema: subschemaOrSubschemaConfig, rootValue, info, operation, fieldName, args, returnType, context, transforms = [], transformedSchema, skipValidation, skipTypeMerging, binding, }) {
     var _a, _b;
-    const stitchingInfo = (_a = info === null || info === void 0 ? void 0 : info.schema.extensions) === null || _a === void 0 ? void 0 : _a.stitchingInfo;
-    let delegationTransforms = [
-        new CheckResultAndHandleErrors(info, fieldName, subschemaOrSubschemaConfig, context, returnType, skipTypeMerging),
-    ];
-    if (stitchingInfo != null) {
-        delegationTransforms.push(new AddSelectionSetsByField(info.schema, stitchingInfo.selectionSetsByField), new AddSelectionSetsByType(info.schema, stitchingInfo.selectionSetsByType));
-    }
-    const transformedTargetSchema = stitchingInfo == null
-        ? transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : targetSchema : (_b = transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : stitchingInfo.transformedSchemas.get(subschemaOrSubschemaConfig)) !== null && _b !== void 0 ? _b : targetSchema;
-    delegationTransforms.push(new WrapConcreteTypes(returnType, transformedTargetSchema));
-    if (info != null) {
-        delegationTransforms.push(new ExpandAbstractTypes(info.schema, transformedTargetSchema));
-    }
-    delegationTransforms = delegationTransforms.concat(transforms);
-    if (stitchingInfo != null) {
-        delegationTransforms.push(new AddFragmentsByField(targetSchema, stitchingInfo.fragmentsByField));
-    }
-    if (args != null) {
-        delegationTransforms.push(new AddArgumentsAsVariables(targetSchema, args));
-    }
-    delegationTransforms.push(new FilterToSchema(targetSchema), new AddTypenameToAbstract(targetSchema));
-    return delegationTransforms;
-}
-function delegateRequest({ request, schema: subschemaOrSubschemaConfig, rootValue, info, operation, fieldName, args, returnType, context, transforms = [], transformedSchema, skipValidation, skipTypeMerging, }) {
-    var _a;
     let operationDefinition;
@@ -1161,4 +1214,4 @@ let targetOperation;
     let targetRootValue;
-    let requestTransforms = transforms.slice();
     let subschemaConfig;
+    let allTransforms;
     if (isSubschemaConfig(subschemaOrSubschemaConfig)) {
@@ -1168,5 +1221,6 @@ subschemaConfig = subschemaOrSubschemaConfig;
         targetRootValue = (_a = rootValue !== null && rootValue !== void 0 ? rootValue : subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.rootValue) !== null && _a !== void 0 ? _a : info === null || info === void 0 ? void 0 : info.rootValue;
-        if (subschemaConfig.transforms != null) {
-            requestTransforms = requestTransforms.concat(subschemaConfig.transforms);
-        }
+        allTransforms =
+            subschemaOrSubschemaConfig.transforms != null
+                ? subschemaOrSubschemaConfig.transforms.concat(transforms)
+                : transforms;
     }
@@ -1176,15 +1230,21 @@ else {
         targetRootValue = rootValue !== null && rootValue !== void 0 ? rootValue : info === null || info === void 0 ? void 0 : info.rootValue;
+        allTransforms = transforms;
     }
-    const delegationTransforms = buildDelegationTransforms(subschemaOrSubschemaConfig, info, context, targetSchema, targetFieldName, args, returnType !== null && returnType !== void 0 ? returnType : getDelegationReturnType(info, targetSchema, targetOperation, targetFieldName), requestTransforms.reverse(), transformedSchema, skipTypeMerging);
-    const processedRequest = applyRequestTransforms(request, delegationTransforms);
+    const delegationContext = {
+        subschema: subschemaOrSubschemaConfig,
+        targetSchema,
+        operation: targetOperation,
+        fieldName: targetFieldName,
+        args,
+        context,
+        info,
+        returnType: (_b = returnType !== null && returnType !== void 0 ? returnType : info === null || info === void 0 ? void 0 : info.returnType) !== null && _b !== void 0 ? _b : getDelegationReturnType(targetSchema, targetOperation, targetFieldName),
+        transforms: allTransforms,
+        transformedSchema: transformedSchema !== null && transformedSchema !== void 0 ? transformedSchema : targetSchema,
+        skipTypeMerging,
+    };
+    const transformer = new Transformer(delegationContext, binding);
+    const processedRequest = transformer.transformRequest(request);
     if (!skipValidation) {
-        const errors = validate(targetSchema, processedRequest.document);
-        if (errors.length > 0) {
-            if (errors.length > 1) {
-                const combinedError = new CombinedError(errors);
-                throw combinedError;
-            }
-            const error = errors[0];
-            throw error.originalError || error;
-        }
+        validateRequest(targetSchema, processedRequest.document);
     }
@@ -1200,5 +1260,5 @@ if (targetOperation === 'query' || targetOperation === 'mutation') {
         if (executionResult instanceof Promise) {
-            return executionResult.then((originalResult) => applyResultTransforms(originalResult, delegationTransforms));
+            return executionResult.then(originalResult => transformer.transformResult(originalResult));
         }
-        return applyResultTransforms(executionResult, delegationTransforms);
+        return transformer.transformResult(executionResult);
     }
@@ -1214,14 +1274,20 @@ const subscriber = (subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.subscriber) || createDefaultSubscriber(targetSchema, (subschemaConfig === null || subschemaConfig === void 0 ? void 0 : subschemaConfig.rootValue) || targetRootValue);
             // "subscribe" to the subscription result and map the result through the transforms
-            return mapAsyncIterator(subscriptionResult, result => {
-                const transformedResult = applyResultTransforms(result, delegationTransforms);
-                // wrap with fieldName to return for an additional round of resolutioon
-                // with payload as rootValue
-                return {
-                    [targetFieldName]: transformedResult,
-                };
-            });
+            return mapAsyncIterator(subscriptionResult, originalResult => ({
+                [targetFieldName]: transformer.transformResult(originalResult),
+            }));
         }
-        return applyResultTransforms(subscriptionResult, delegationTransforms);
+        return transformer.transformResult(subscriptionResult);
     });
 }
+function validateRequest(targetSchema, document) {
+    const errors = validate(targetSchema, document);
+    if (errors.length > 0) {
+        if (errors.length > 1) {
+            const combinedError = new CombinedError(errors);
+            throw combinedError;
+        }
+        const error = errors[0];
+        throw error.originalError || error;
+    }
+}
 function createDefaultExecutor(schema, rootValue) {
@@ -1359,3 +1425,3 @@ return ({ document, context, variables, info }) => execute({
 
-export { AddArgumentsAsVariables, AddFragmentsByField, AddSelectionSetsByType as AddMergedTypeSelectionSets, AddSelectionSetsByField, AddTypenameToAbstract, CheckResultAndHandleErrors, ExpandAbstractTypes, FilterToSchema, ReplaceFieldWithFragment, checkResultAndHandleErrors, createMergedResolver, createRequest, createRequestFromInfo, defaultMergedResolver, delegateRequest, delegateToSchema, getSubschema, handleResult, isSubschemaConfig };
+export { AddArgumentsAsVariables, AddFragmentsByField, AddSelectionSetsByType as AddMergedTypeSelectionSets, AddSelectionSetsByField, AddTypenameToAbstract, CheckResultAndHandleErrors, ExpandAbstractTypes, FilterToSchema, ReplaceFieldWithFragment, Subschema, checkResultAndHandleErrors, createMergedResolver, createRequest, createRequestFromInfo, defaultDelegationBinding, defaultMergedResolver, delegateRequest, delegateToSchema, getSubschema, handleResult, isSubschema, isSubschemaConfig };
 //# sourceMappingURL=index.esm.js.map

package.json

 {
   "name": "@graphql-tools/delegate",
-  "version": "6.0.8-alpha-818e986.0",
+  "version": "6.0.8-alpha-9f8f3e5.0",
   "description": "A set of utils for faster development of GraphQL tools",
@@ -10,4 +10,4 @@ "sideEffects": false,
   "dependencies": {
-    "@graphql-tools/schema": "6.0.8-alpha-818e986.0",
-    "@graphql-tools/utils": "6.0.8-alpha-818e986.0",
+    "@graphql-tools/schema": "6.0.8-alpha-9f8f3e5.0",
+    "@graphql-tools/utils": "6.0.8-alpha-9f8f3e5.0",
     "tslib": "~2.0.0"
@@ -14,0 +14,0 @@ },

types.d.ts

@@ -1,5 +0,20 @@
-import { GraphQLSchema, GraphQLOutputType, SelectionSetNode, FieldNode, DocumentNode, GraphQLResolveInfo, GraphQLFieldResolver, InlineFragmentNode, FragmentDefinitionNode, GraphQLObjectType, VariableDefinitionNode } from 'graphql';
+import { GraphQLSchema, GraphQLOutputType, SelectionSetNode, FieldNode, DocumentNode, GraphQLResolveInfo, GraphQLFieldResolver, InlineFragmentNode, FragmentDefinitionNode, GraphQLObjectType, VariableDefinitionNode, OperationTypeNode } from 'graphql';
 import { Operation, Transform, Request, TypeMap, ExecutionResult } from '@graphql-tools/utils';
+import { Subschema } from './Subschema';
+export interface DelegationContext {
+    subschema: GraphQLSchema | SubschemaConfig;
+    targetSchema: GraphQLSchema;
+    operation: OperationTypeNode;
+    fieldName: string;
+    args: Record<string, any>;
+    context: Record<string, any>;
+    info: GraphQLResolveInfo;
+    returnType: GraphQLOutputType;
+    transforms: Array<Transform>;
+    transformedSchema: GraphQLSchema;
+    skipTypeMerging: boolean;
+}
+export declare type DelegationBinding = (delegationContext: DelegationContext) => Array<Transform>;
 export interface IDelegateToSchemaOptions<TContext = Record<string, any>, TArgs = Record<string, any>> {
-    schema: GraphQLSchema | SubschemaConfig;
+    schema: GraphQLSchema | SubschemaConfig | Subschema;
     operation?: Operation;
@@ -18,2 +33,3 @@ fieldName?: string;
     skipTypeMerging?: boolean;
+    binding?: DelegationBinding;
 }
@@ -86,3 +102,2 @@ export interface IDelegateRequestOptions extends Omit<IDelegateToSchemaOptions, 'info'> {
 export declare type MergedTypeResolver = (originalResult: any, context: Record<string, any>, info: GraphQLResolveInfo, subschema: GraphQLSchema | SubschemaConfig, selectionSet: SelectionSetNode) => any;
-export declare function isSubschemaConfig(value: any): value is SubschemaConfig;
 export interface StitchingInfo {
@@ -89,0 +104,0 @@ transformedSchemas: Map<GraphQLSchema | SubschemaConfig, GraphQLSchema>;

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Improved metrics

Total package byte prevSize

383495

increased by4.37%

Number of package files

32

increased by6.67%

Lines of code

3098

increased by5.88%

Dependency changes

• + Added@graphql-tools/schema@6.0.8-alpha-9f8f3e5.0(transitive)

• + Added@graphql-tools/utils@6.0.8-alpha-9f8f3e5.0(transitive)

• - Removed@graphql-tools/schema@6.0.8-alpha-818e986.0(transitive)

• - Removed@graphql-tools/utils@6.0.8-alpha-818e986.0(transitive)

• Updated@graphql-tools/schema@6.0.8-alpha-9f8f3e5.0

• Updated@graphql-tools/utils@6.0.8-alpha-9f8f3e5.0