fix: compatibility with latest nestjs version

example/__tests__/app.e2e-spec.ts

@@ -1,15 +1,14 @@
 import { Test, TestingModule } from "@nestjs/testing";
 import { INestApplication } from "@nestjs/common";
 import { GraphQLModule } from "@nestjs/graphql";
-import { createTestClient } from "apollo-server-testing";
 import gql from "graphql-tag";
 import { AppModule } from "./../src/app.module";
-import { Factory } from 'typeorm-factory'
+import { Factory } from "typeorm-factory";
 import { Account } from "../src/account/account.entity";
 
 describe("AppModule", () => {
   let app: INestApplication;
-  let apolloClient: ReturnType<typeof createTestClient>;
+  let server: GraphQLModule["apolloServer"];
 
   beforeAll(async () => {
     const moduleFixture: TestingModule = await Test.createTestingModule({
@@ -19,22 +18,20 @@ describe("AppModule", () => {
     app = moduleFixture.createNestApplication();
     await app.init();
 
-    const module: GraphQLModule = moduleFixture.get<GraphQLModule>(
-      GraphQLModule
-    );
-    // apolloServer is protected, we need to cast module to any to get it
-    apolloClient = createTestClient((module as any).apolloServer);
+    const module: GraphQLModule =
+      moduleFixture.get<GraphQLModule>(GraphQLModule);
+
+    server = module.apolloServer;
   });
 
   afterAll(() => app.close());
 
   it("defined", () => expect(app).toBeDefined());
 
   it("/graphql(POST) getAccounts", async () => {
-    const f = new Factory(Account).attr('name', 'name')
-    const account = await f.create()
-    const { query } = apolloClient;
-    const result = await query({
+    const f = new Factory(Account).attr("name", "name");
+    const account = await f.create();
+    const result = await server.executeOperation({
       query: gql`
         query q($ids: [ID!]!) {
           getAccounts(ids: $ids) {
@@ -46,6 +43,6 @@ describe("AppModule", () => {
         ids: [account.id],
       },
     });
-    expect(result.errors).toBeUndefined()
+    expect(result.errors).toBeUndefined();
   });
 });

example/src/account/account.loader.ts

@@ -1,4 +1,4 @@
-import DataLoader = require("dataloader");
+import DataLoader from "dataloader";
 import { Injectable } from "@nestjs/common";
 import { NestDataLoader } from "../../..";
 import { AccountService } from "./account.service";

example/src/account/account.resolver.ts

@@ -9,7 +9,7 @@ export class AccountResolver {
   @Query(() => [Account])
   public getAccounts(
     @Args({ name: "ids", type: () => [ID] }) ids: string[],
-    @Loader(AccountLoader.name)
+    @Loader(AccountLoader)
     accountLoader: DataLoader<Account["id"], Account>
   ): Promise<(Account | Error)[]> {
     return accountLoader.loadMany(ids);

example/tsconfig.json

@@ -7,7 +7,8 @@
     "experimentalDecorators": true,
     "target": "es6",
     "sourceMap": true,
-    "outDir": "./dist"
+    "outDir": "./dist",
+    "skipLibCheck": true
   },
   "include": ["src"],
   "exclude": ["node_modules", "*.spec.ts"]

index.ts

@@ -8,12 +8,10 @@ import {
 } from '@nestjs/common';
 import { APP_INTERCEPTOR, ModuleRef, ContextIdFactory } from '@nestjs/core';
 import { GqlExecutionContext } from '@nestjs/graphql';
-import * as DataLoader from 'dataloader';
-import { Observable } from 'rxjs';
-import { idText } from 'typescript';
+import DataLoader from "dataloader";
 
 /**
- * This interface will be used to generate the initial data loader.                
+ * This interface will be used to generate the initial data loader.              
  * The concrete implementation should be added as a provider to your module.
  */
 export interface NestDataLoader<ID, Type> {
@@ -39,7 +37,7 @@ export class DataLoaderInterceptor implements NestInterceptor {
   /**
    * @inheritdoc
    */
-  intercept(context: ExecutionContext, next: CallHandler): Observable<any> {
+  intercept(context: ExecutionContext, next: CallHandler) {
     const graphqlExecutionContext = GqlExecutionContext.create(context);
     const ctx = graphqlExecutionContext.getContext();
 
@@ -48,8 +46,8 @@ export class DataLoaderInterceptor implements NestInterceptor {
         contextId: ContextIdFactory.create(),
         getLoader: (type: string) : Promise<NestDataLoader<any, any>> => {
           if (ctx[type] === undefined) {
-            try {           
-              ctx[type] = (async () => { 
+            try {
+              ctx[type] = (async () => {
                 return (await this.moduleRef.resolve<NestDataLoader<any, any>>(type, ctx[NEST_LOADER_CONTEXT_KEY].contextId, { strict: false }))
                   .generateDataLoader();
               })();

package.json

@@ -20,35 +20,37 @@
     "graphql"
   ],
   "peerDependencies": {
-    "@nestjs/common": "^7.0.0",
-    "@nestjs/core": "^7.0.0",
-    "@nestjs/graphql": "^7.0.0",
-    "graphql": "^14.1.1",
+    "@apollo/gateway": "^0.41.0",
+    "@nestjs/common": "^8.0.6",
+    "@nestjs/core": "^8.0.6",
+    "@nestjs/graphql": "^9.0.4",
+    "graphql": "^15.5.3",
     "reflect-metadata": "^0.1.12"
   },
   "dependencies": {
-    "dataloader": "^2.0.0",
-    "rxjs": "^6.5.4"
+    "dataloader": "^2.0.0"
   },
   "devDependencies": {
-    "@nestjs/cli": "^7.1.2",
-    "@nestjs/common": "^7.0.5",
-    "@nestjs/core": "^7.0.5",
-    "@nestjs/graphql": "^7.0.15",
-    "@nestjs/platform-express": "^7.0.7",
-    "@nestjs/testing": "^7.0.7",
-    "@nestjs/typeorm": "^7.0.0",
-    "@types/jest": "^25.2.1",
-    "apollo-server-express": "^2.9.16",
-    "apollo-server-testing": "^2.11.0",
-    "graphql": "^14.1.1",
-    "jest": "^25.2.7",
+    "@apollo/gateway": "^0.41.0",
+    "@nestjs/cli": "^8.1.1",
+    "@nestjs/common": "^8.0.6",
+    "@nestjs/core": "^8.0.6",
+    "@nestjs/graphql": "^9.0.4",
+    "@nestjs/platform-express": "^8.0.6",
+    "@nestjs/testing": "^8.0.6",
+    "@nestjs/typeorm": "^8.0.2",
+    "@types/jest": "^27.0.1",
+    "apollo-server-express": "^3.3.0",
+    "graphql": "^15.5.3",
+    "jest": "^27.2.0",
     "reflect-metadata": "^0.1.12",
-    "sqlite3": "^4.1.1",
-    "ts-jest": "^25.3.1",
+    "rxjs": "^7.3.0",
+    "sqlite3": "^5.0.2",
+    "ts-jest": "^27.0.5",
+    "ts-morph": "^12.0.0",
     "typeorm": "^0.2.24",
     "typeorm-factory": "^0.0.14",
-    "typescript": "^3.7.4"
+    "typescript": "^4.4.3"
   },
   "types": "index.d.ts",
   "jest": {

tsconfig.json

@@ -10,6 +10,7 @@
     "outDir": "./dist",
     "baseUrl": "./",
     "esModuleInterop": true,
+    "noUnusedLocals": true
   },
   "exclude": ["node_modules", "dist", "example"]
 }