fix(core): dependencies not resolving for request-scoped lazy providers

integration/lazy-modules/e2e/lazy-import-request-providers.spec.ts

@@ -0,0 +1,30 @@
+import { INestApplication } from '@nestjs/common';
+import { Test } from '@nestjs/testing';
+import { expect } from 'chai';
+import * as request from 'supertest';
+import { LazyController } from '../src/lazy.controller';
+
+describe('Lazy Requested Scoped providers', () => {
+  let app: INestApplication;
+
+  beforeEach(async () => {
+    const module = await Test.createTestingModule({
+      controllers: [LazyController],
+    }).compile();
+
+    app = module.createNestApplication();
+    await app.init();
+  });
+
+  it('should not recreate dependencies for default scope', async () => {
+    const resultOne = await request(app.getHttpServer()).get('/lazy/request');
+
+    expect(resultOne.text).to.be.equal('Hi! Counter is 1');
+    expect(resultOne.statusCode).to.be.equal(200);
+
+    const resultTwo = await request(app.getHttpServer()).get('/lazy/request');
+
+    expect(resultTwo.text).to.be.equal('Hi! Counter is 2');
+    expect(resultTwo.statusCode).to.be.equal(200);
+  });
+});

integration/lazy-modules/src/lazy.controller.ts

@@ -13,6 +13,16 @@ export class LazyController {
     const { TransientService } = await import('./transient.service');
     const _service = await moduleRef.resolve(TransientService);
 
+    return _service.eager();
+  }
+  @Get('request')
+  async execRequestScope() {
+    const { RequestLazyModule } = await import('./request.module');
+    const moduleRef = await this.lazyLoadModule.load(() => RequestLazyModule);
+
+    const { RequestService } = await import('./request.service');
+    const _service = await moduleRef.resolve(RequestService);
+
     return _service.eager();
   }
 }

integration/lazy-modules/src/request.module.ts

@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common';
+import { EagerService } from './eager.module';
+import { GlobalService } from './global.module';
+import { RequestService } from './request.service';
+
+@Module({
+  imports: [],
+  providers: [RequestService, GlobalService, EagerService],
+  exports: [RequestService],
+})
+export class RequestLazyModule {}

integration/lazy-modules/src/request.service.ts

@@ -0,0 +1,11 @@
+import { Injectable, Scope } from '@nestjs/common';
+import { EagerService } from './eager.module';
+
+@Injectable({ scope: Scope.REQUEST })
+export class RequestService {
+  constructor(private eagerService: EagerService) {}
+
+  eager() {
+    return this.eagerService.sayHello();
+  }
+}

packages/core/injector/module.ts

@@ -255,7 +255,11 @@ export class Module {
     }
 
     const isAlreadyDeclared = this._providers.has(provider);
-    if (this.isTransientProvider(provider) && isAlreadyDeclared) {
+    if (
+      (this.isTransientProvider(provider) ||
+        this.isRequestScopeProvider(provider)) &&
+      isAlreadyDeclared
+    ) {
       return provider;
     }
 
@@ -664,4 +668,7 @@ export class Module {
   private isTransientProvider(provider: Type<any>): boolean {
     return getClassScope(provider) === Scope.TRANSIENT;
   }
+  private isRequestScopeProvider(provider: Type<any>): boolean {
+    return getClassScope(provider) === Scope.REQUEST;
+  }
 }