Merge pull request #1482 from randomprofilename/graphql_federation_sc…

…hemahost_fix

fix(federation): assignment GraphqlSchemaHost#schema in factory

lib/federation/graphql-federation.factory.ts

@@ -31,6 +31,7 @@ import {
 } from '../services';
 import { extend } from '../utils';
 import { transformSchema } from '../utils/transform-schema.util';
+import { GraphQLSchemaHost } from '../graphql-schema.host';
 
 @Injectable()
 export class GraphQLFederationFactory {
@@ -39,6 +40,7 @@ export class GraphQLFederationFactory {
     private readonly scalarsExplorerService: ScalarsExplorerService,
     private readonly pluginsExplorerService: PluginsExplorerService,
     private readonly gqlSchemaBuilder: GraphQLSchemaBuilder,
+    private readonly gqlSchemaHost: GraphQLSchemaHost,
   ) {}
 
   async mergeOptions(
@@ -61,6 +63,8 @@ export class GraphQLFederationFactory {
       schema = this.buildSchemaFromTypeDefs(options);
     }
 
+    this.gqlSchemaHost.schema = schema;
+
     return {
       ...options,
       schema: await transformSchema(schema),

tests/e2e/graphql-federation-schema-host.spec.ts

@@ -0,0 +1,28 @@
+import { INestApplication } from '@nestjs/common';
+import { Test } from '@nestjs/testing';
+import { AppModule } from '../graphql-federation/posts-service/federation-posts.module';
+import { GraphQLSchemaHost } from '../../lib';
+import { GraphQLSchema } from 'graphql';
+
+describe('GraphQL federation GraphQLSchemaHost using', () => {
+  let app: INestApplication;
+
+  beforeEach(async () => {
+    const module = await Test.createTestingModule({
+      imports: [AppModule],
+    }).compile();
+
+    app = module.createNestApplication();
+    await app.init();
+  });
+
+  it(`GraphQLSchemaHost should contain schema`, () => {
+      const schemaHost = app.get(GraphQLSchemaHost)
+
+      expect(schemaHost.schema).toBeInstanceOf(GraphQLSchema)
+  });
+
+  afterEach(async () => {
+    await app.close();
+  });
+});