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Fix resolveReference being generated as required when using generateInternalResolversIfNeeded.__resolveReference #10230

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Jan 18, 2025
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10 changes: 10 additions & 0 deletions .changeset/orange-pillows-decide.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
---
'@graphql-codegen/visitor-plugin-common': patch
'@graphql-codegen/typescript-resolvers': patch
---

Fix generateInternalResolversIfNeeded.\_\_resolveReference making the resolver required

`__resolveReference`'s default behaviour when not declared is to pass the ref to subsequent resolvers i.e. becoming the `parent`. So, it means we don't have to make this resolver required.

This patch makes `__resolveReference` optional when `generateInternalResolversIfNeeded.__resolveReference` is set to true.
Original file line number Diff line number Diff line change
Expand Up @@ -1531,7 +1531,6 @@ export class BaseResolversVisitor<
if (!federationDetails || federationDetails.resolvableKeyDirectives.length === 0) {
return '';
}
signature.modifier = ''; // if a federation type has resolvable @key, then it should be required
}

this._federation.setMeta(parentType.name, { hasResolveReference: true });
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Original file line number Diff line number Diff line change
Expand Up @@ -212,7 +212,7 @@ describe('TypeScript Resolvers Plugin + Apollo Federation', () => {
// User should have __resolveReference because it has resolvable @key (by default)
expect(content).toBeSimilarStringTo(`
export type UserResolvers<ContextType = any, ParentType extends ResolversParentTypes['User'] = ResolversParentTypes['User']> = {
__resolveReference: ReferenceResolver<Maybe<ResolversTypes['User']>, { __typename: 'User' } & GraphQLRecursivePick<ParentType, {"id":true}>, ContextType>;
__resolveReference?: ReferenceResolver<Maybe<ResolversTypes['User']>, { __typename: 'User' } & GraphQLRecursivePick<ParentType, {"id":true}>, ContextType>;
id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
name?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
username?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
Expand All @@ -223,7 +223,7 @@ describe('TypeScript Resolvers Plugin + Apollo Federation', () => {
// SingleResolvable has __resolveReference because it has resolvable: true
expect(content).toBeSimilarStringTo(`
export type SingleResolvableResolvers<ContextType = any, ParentType extends ResolversParentTypes['SingleResolvable'] = ResolversParentTypes['SingleResolvable']> = {
__resolveReference: ReferenceResolver<Maybe<ResolversTypes['SingleResolvable']>, { __typename: 'SingleResolvable' } & GraphQLRecursivePick<ParentType, {"id":true}>, ContextType>;
__resolveReference?: ReferenceResolver<Maybe<ResolversTypes['SingleResolvable']>, { __typename: 'SingleResolvable' } & GraphQLRecursivePick<ParentType, {"id":true}>, ContextType>;
id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
__isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
};
Expand All @@ -240,7 +240,7 @@ describe('TypeScript Resolvers Plugin + Apollo Federation', () => {
// AtLeastOneResolvable has __resolveReference because it at least one resolvable
expect(content).toBeSimilarStringTo(`
export type AtLeastOneResolvableResolvers<ContextType = any, ParentType extends ResolversParentTypes['AtLeastOneResolvable'] = ResolversParentTypes['AtLeastOneResolvable']> = {
__resolveReference: ReferenceResolver<Maybe<ResolversTypes['AtLeastOneResolvable']>, { __typename: 'AtLeastOneResolvable' } & GraphQLRecursivePick<ParentType, {"id2":true}>, ContextType>;
__resolveReference?: ReferenceResolver<Maybe<ResolversTypes['AtLeastOneResolvable']>, { __typename: 'AtLeastOneResolvable' } & GraphQLRecursivePick<ParentType, {"id2":true}>, ContextType>;
id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
id2?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
id3?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
Expand All @@ -251,7 +251,7 @@ describe('TypeScript Resolvers Plugin + Apollo Federation', () => {
// MixedResolvable has __resolveReference and references for resolvable keys
expect(content).toBeSimilarStringTo(`
export type MixedResolvableResolvers<ContextType = any, ParentType extends ResolversParentTypes['MixedResolvable'] = ResolversParentTypes['MixedResolvable']> = {
__resolveReference: ReferenceResolver<Maybe<ResolversTypes['MixedResolvable']>, { __typename: 'MixedResolvable' } & (GraphQLRecursivePick<ParentType, {"id":true}> | GraphQLRecursivePick<ParentType, {"id2":true}>), ContextType>;
__resolveReference?: ReferenceResolver<Maybe<ResolversTypes['MixedResolvable']>, { __typename: 'MixedResolvable' } & (GraphQLRecursivePick<ParentType, {"id":true}> | GraphQLRecursivePick<ParentType, {"id2":true}>), ContextType>;
id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
id2?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
id3?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
Expand Down
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