chore(@nestjs) publish v11.0.11 release

perf: Switch deprecated parser querystring for fast-querystring

.circleci/config.yml

@@ -6,16 +6,16 @@ parameters:
     default: false
   legacy-node-version:
     type: string
-    default: '14.21.3'
+    default: '18.20'
   maintenance-node-version:
     type: string
-    default: '16.20'
+    default: '20.18'
   active-node-version:
     type: string
-    default: '18.17'
+    default: '22.11'
   current-node-version:
     type: string
-    default: '20.5'
+    default: '23.3'
 
 aliases:
   - &restore-cache
@@ -29,7 +29,7 @@ aliases:
   - &install-deps
     run:
       name: Install dependencies
-      command: npm ci --legacy-peer-deps
+      command: npm install --legacy-peer-deps
   - &build-packages
     run:
       name: Build
@@ -121,14 +121,14 @@ jobs:
   lint:
     working_directory: ~/nest
     docker:
-      - image: cimg/node:<< pipeline.parameters.current-node-version >>
+      - image: cimg/node:<< pipeline.parameters.active-node-version >>
     steps:
       - checkout
       - *restore-cache
       - *install-deps
       - run:
           name: Lint
-          command: npm run lint
+          command: npm run lint:ci
 
   integration_tests:
     working_directory: ~/nest

.eslintignore

@@ -1,3 +0,0 @@
-**/node_modules/**
-*.d.ts
-*.js

.eslintrc.js

@@ -1,47 +0,0 @@
-module.exports = {
-  root: true,
-  env: {
-    node: true,
-  },
-  plugins: ['@typescript-eslint/eslint-plugin'],
-  extends: [
-    'plugin:@typescript-eslint/recommended',
-    'prettier',
-  ],
-  overrides: [
-    {
-      files: ['**/*.ts'],
-      parser: '@typescript-eslint/parser',
-      parserOptions: {
-        project: 'tsconfig.json',
-        sourceType: 'module',
-      },
-      rules: {
-        '@typescript-eslint/no-explicit-any': 'off',
-        '@typescript-eslint/no-unused-vars': 'off',
-        '@typescript-eslint/no-unsafe-function-type': 'off',
-        '@typescript-eslint/no-unused-expressions': 'off',
-        '@typescript-eslint/no-require-imports': 'off',
-        '@typescript-eslint/no-empty-object-type': 'off',
-        '@typescript-eslint/no-wrapper-object-types': 'off',
-      },
-    },
-    {
-      files: ['**/*.spec.ts', 'integration/**/*.ts'],
-      parser: '@typescript-eslint/parser',
-      parserOptions: {
-        project: 'tsconfig.spec.json',
-        sourceType: 'module',
-      },
-      rules: {
-        '@typescript-eslint/no-explicit-any': 'off',
-        '@typescript-eslint/no-unused-vars': 'off',
-        '@typescript-eslint/no-unsafe-function-type': 'off',
-        '@typescript-eslint/no-unused-expressions': 'off',
-        '@typescript-eslint/no-require-imports': 'off',
-        '@typescript-eslint/no-empty-object-type': 'off',
-        '@typescript-eslint/no-wrapper-object-types': 'off',
-      },
-    }
-  ]
-};

.github/ISSUE_TEMPLATE/Bug_report.yml

@@ -1,6 +1,7 @@
 name: "\U0001F41B Bug Report"
 description: "If something isn't working as expected \U0001F914"
 labels: ["needs triage"]
+type: bug
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/Feature_request.yml

@@ -1,6 +1,7 @@
 name: "\U0001F680 Feature Request"
 description: "I have a suggestion \U0001F63B!"
 labels: ["type: enhancement :wolf:", "needs triage"]
+type: feature
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/Regression.yml

@@ -1,6 +1,7 @@
 name: "\U0001F4A5 Regression"
 description: "Report an unexpected while upgrading your Nest application!"
 labels: ["type: bug :sob:", "needs triage"]
+type: bug
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/Suggestion_improve_performance.yml

@@ -2,6 +2,7 @@ title: "perf: "
 name: "\U0001F525 Suggestion for Improving Performance"
 description: "I have a suggestion that might improve the performance of Nest \U00002728"
 labels: ["type: enhancement :wolf:", "needs triage"]
+type: task
 body:
   - type: checkboxes
     attributes:

.gitignore

@@ -1,5 +1,5 @@
 packages/*/package-lock.json
-sample/*/package-lock.json
+sample/**/package-lock.json
 
 # dependencies
 node_modules/

CONTRIBUTING.md

@@ -25,7 +25,7 @@ Stack Overflow is a much better place to ask questions since:
 
 <!-- - there are thousands of people willing to help on Stack Overflow [maybe one day] -->
 
-- questions and answers stay available for public viewing so your question / answer might help someone else
+- questions and answers stay available for public viewing so your question / answer might help someone else.
 - Stack Overflow's voting system assures that the best answers are prominently visible.
 
 To save your and our time, we will systematically close all issues that are requests for general support and redirect people to Stack Overflow.

LICENSE

@@ -1,6 +1,6 @@
 (The MIT License)
 
-Copyright (c) 2017-2024 Kamil Mysliwiec <https://kamilmysliwiec.com>
+Copyright (c) 2017-2025 Kamil Mysliwiec <https://kamilmysliwiec.com>
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

eslint.config.mjs

@@ -0,0 +1,55 @@
+// @ts-check
+import eslint from '@eslint/js';
+import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  {
+    ignores: ['node_modules', '**/node_modules/**', '**/*.js', '**/*.d.ts'],
+  },
+  eslint.configs.recommended,
+  ...tseslint.configs.recommendedTypeChecked,
+  eslintPluginPrettierRecommended,
+  {
+    languageOptions: {
+      globals: {
+        ...globals.node,
+        ...globals.jest,
+      },
+      ecmaVersion: 5,
+      sourceType: 'module',
+      parserOptions: {
+        project: ['tsconfig.json', 'tsconfig.spec.json'],
+        projectService: true,
+        tsconfigRootDir: import.meta.dirname,
+      },
+    },
+  },
+  {
+    rules: {
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-unsafe-assignment': 'off',
+      '@typescript-eslint/no-unsafe-call': 'off',
+      '@typescript-eslint/no-unsafe-member-access': 'off',
+      '@typescript-eslint/no-unsafe-function-type': 'off',
+      '@typescript-eslint/no-unsafe-argument': 'off',
+      '@typescript-eslint/no-unsafe-return': 'off',
+      '@typescript-eslint/no-unused-expressions': 'off',
+      '@typescript-eslint/no-require-imports': 'off',
+      '@typescript-eslint/no-unused-vars': 'off',
+      "@typescript-eslint/no-misused-promises": [
+        "error",
+        {
+          "checksVoidReturn": false,
+          "checksConditionals": false
+        }
+      ],
+      "@typescript-eslint/require-await": "off",
+      '@typescript-eslint/prefer-promise-reject-errors': 'off',
+      '@typescript-eslint/no-base-to-string': 'off',
+      '@typescript-eslint/unbound-method': 'off',
+      '@typescript-eslint/only-throw-error': 'off',
+    },
+  },
+);

integration/auto-mock/test/bar.service.spec.ts

@@ -4,6 +4,7 @@ import * as chaiAsPromised from 'chai-as-promised';
 import * as sinon from 'sinon';
 import { BarService } from '../src/bar.service';
 import { FooService } from '../src/foo.service';
+
 chai.use(chaiAsPromised);
 const { expect } = chai;
 

integration/auto-mock/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],
@@ -32,7 +33,8 @@
   },
   "include": [
     "src/**/*",
-    "e2e/**/*"
+    "e2e/**/*",
+    "test/**/*"
   ],
   "exclude": [
     "node_modules",

integration/cors/e2e/fastify.spec.ts

@@ -38,10 +38,12 @@ describe.skip('Fastify Cors', () => {
         );
 
         let requestId = 0;
-        const configDelegation = function (req, cb) {
-          const config = configs[requestId];
-          requestId++;
-          cb(null, config);
+        const configDelegation = {
+          delegator: function (req, cb) {
+            const config = configs[requestId];
+            requestId++;
+            cb(null, config);
+          },
         };
         app.enableCors(configDelegation);
 

integration/cors/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/discovery/src/webhooks.explorer.ts

@@ -17,17 +17,17 @@ export class WebhooksExplorer {
       const { name } = this.discoveryService.getMetadataByDecorator(
         Webhook,
         wrapper,
-      );
+      )!;
       return {
         name,
         handlers: this.metadataScanner
-          .getAllMethodNames(wrapper.metatype.prototype)
+          .getAllMethodNames(wrapper.metatype!.prototype)
           .map(methodName => {
             const { event } = this.discoveryService.getMetadataByDecorator(
               WebhookHandler,
               wrapper,
               methodName,
-            );
+            )!;
             return {
               methodName,
               event,

integration/discovery/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/docker-compose.yml

@@ -25,8 +25,9 @@ services:
       - "9001:9001"
     restart: always
   mysql:
-    image: mysql:9.1.0
+    image: mysql:9.2.0
     environment:
+      MYSQL_ROOT_HOST: '%'
       MYSQL_ROOT_PASSWORD: root
       MYSQL_DATABASE: test
     ports:
@@ -50,7 +51,7 @@ services:
   zookeeper:
     container_name: test-zookeeper
     hostname: zookeeper
-    image: confluentinc/cp-zookeeper:7.8.0
+    image: confluentinc/cp-zookeeper:7.9.0
     ports:
       - "2181:2181"
     environment:
@@ -59,7 +60,7 @@ services:
   kafka:
     container_name: test-kafka
     hostname: kafka
-    image: confluentinc/cp-kafka:7.8.0
+    image: confluentinc/cp-kafka:7.9.0
     depends_on:
       - zookeeper
     ports:

integration/graphql-code-first/src/main.ts

@@ -7,4 +7,4 @@ async function bootstrap() {
   app.useGlobalPipes(new ValidationPipe());
   await app.listen(3000);
 }
-bootstrap();
+void bootstrap();

integration/graphql-code-first/src/recipes/recipes.resolver.ts

@@ -35,7 +35,7 @@ export class RecipesResolver {
     @Args('newRecipeData') newRecipeData: NewRecipeInput,
   ): Promise<Recipe> {
     const recipe = await this.recipesService.create(newRecipeData);
-    pubSub.publish('recipeAdded', { recipeAdded: recipe });
+    void pubSub.publish('recipeAdded', { recipeAdded: recipe });
     return recipe;
   }
 
@@ -46,6 +46,6 @@ export class RecipesResolver {
 
   @Subscription(returns => Recipe)
   recipeAdded() {
-    return pubSub.asyncIterator('recipeAdded');
+    return pubSub.asyncIterableIterator('recipeAdded');
   }
 }

integration/graphql-code-first/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/graphql-schema-first/e2e/graphql-request-scoped.spec.ts

@@ -42,7 +42,7 @@ describe('GraphQL request scoped', () => {
             ],
           },
         })
-        .end((err, res) => {
+        .end(err => {
           if (err) return end(err);
           end();
         });

integration/graphql-schema-first/src/cats/cats-request-scoped.service.ts

@@ -20,6 +20,6 @@ export class CatsRequestScopedService {
   }
 
   findOneById(id: number): Cat {
-    return this.cats.find(cat => cat.id === id);
+    return this.cats.find(cat => cat.id === id)!;
   }
 }

integration/graphql-schema-first/src/cats/cats.resolvers.ts

@@ -27,13 +27,13 @@ export class CatsResolvers {
 
   @Mutation('createCat')
   async create(@Args() args: Cat): Promise<Cat> {
-    const createdCat = await this.catsService.create(args);
-    pubSub.publish('catCreated', { catCreated: createdCat });
+    const createdCat = this.catsService.create(args);
+    void pubSub.publish('catCreated', { catCreated: createdCat });
     return createdCat;
   }
 
   @Subscription('catCreated')
   catCreated() {
-    return pubSub.asyncIterator('catCreated');
+    return pubSub.asyncIterableIterator('catCreated');
   }
 }

integration/graphql-schema-first/src/cats/cats.service.ts

@@ -20,6 +20,6 @@ export class CatsService {
   }
 
   findOneById(id: number): Cat {
-    return this.cats.find(cat => cat.id === id);
+    return this.cats.find(cat => cat.id === id)!;
   }
 }

integration/graphql-schema-first/src/main.ts

@@ -5,4 +5,4 @@ async function bootstrap() {
   const app = await NestFactory.create(AppModule);
   await app.listen(3000);
 }
-bootstrap();
+void bootstrap();

integration/graphql-schema-first/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/hello-world/e2e/exclude-middleware-fastify.spec.ts

@@ -50,6 +50,16 @@ class TestController {
     return RETURN_VALUE;
   }
 
+  @Get('legacy-wildcard/overview')
+  testLegacyWildcard() {
+    return RETURN_VALUE;
+  }
+
+  @Get('splat-wildcard/overview')
+  testSplatWildcard() {
+    return RETURN_VALUE;
+  }
+
   @Get('overview/:id')
   overviewById() {
     return RETURN_VALUE;
@@ -64,10 +74,17 @@ class TestModule {
   configure(consumer: MiddlewareConsumer) {
     consumer
       .apply((req, res, next) => res.end(MIDDLEWARE_VALUE))
-      .exclude('test', 'overview/:id', 'wildcard/(.*)', {
-        path: 'middleware',
-        method: RequestMethod.POST,
-      })
+      .exclude(
+        'test',
+        'overview/:id',
+        'wildcard/*',
+        'legacy-wildcard/(.*)',
+        'splat-wildcard/*splat',
+        {
+          path: 'middleware',
+          method: RequestMethod.POST,
+        },
+      )
       .forRoutes('*');
   }
 }
@@ -126,6 +143,18 @@ describe('Exclude middleware (fastify)', () => {
       .expect(200, RETURN_VALUE);
   });
 
+  it(`should exclude "/legacy-wildcard/overview" endpoint (by wildcard, legacy syntax)`, () => {
+    return request(app.getHttpServer())
+      .get('/legacy-wildcard/overview')
+      .expect(200, RETURN_VALUE);
+  });
+
+  it(`should exclude "/splat-wildcard/overview" endpoint (by wildcard, new syntax)`, () => {
+    return request(app.getHttpServer())
+      .get('/splat-wildcard/overview')
+      .expect(200, RETURN_VALUE);
+  });
+
   afterEach(async () => {
     await app.close();
   });

integration/hello-world/e2e/exclude-middleware.spec.ts

@@ -41,6 +41,16 @@ class TestController {
     return RETURN_VALUE;
   }
 
+  @Get('legacy-wildcard/overview')
+  testLegacyWildcard() {
+    return RETURN_VALUE;
+  }
+
+  @Get('splat-wildcard/overview')
+  testSplatWildcard() {
+    return RETURN_VALUE;
+  }
+
   @Get('overview/:id')
   overviewById() {
     return RETURN_VALUE;
@@ -60,12 +70,19 @@ class TestModule {
   configure(consumer: MiddlewareConsumer) {
     consumer
       .apply((req, res, next) => res.send(MIDDLEWARE_VALUE))
-      .exclude('test', 'overview/:id', 'wildcard/(.*)', {
-        path: 'middleware',
-        method: RequestMethod.POST,
-      })
+      .exclude(
+        'test',
+        'overview/:id',
+        'wildcard/*',
+        'legacy-wildcard/(.*)',
+        'splat-wildcard/*splat',
+        {
+          path: 'middleware',
+          method: RequestMethod.POST,
+        },
+      )
       .exclude('multiple/exclude')
-      .forRoutes('*');
+      .forRoutes('*path');
   }
 }
 
@@ -116,6 +133,18 @@ describe('Exclude middleware', () => {
       .expect(200, RETURN_VALUE);
   });
 
+  it(`should exclude "/legacy-wildcard/overview" endpoint (by wildcard, legacy syntax)`, () => {
+    return request(app.getHttpServer())
+      .get('/legacy-wildcard/overview')
+      .expect(200, RETURN_VALUE);
+  });
+
+  it(`should exclude "/splat-wildcard/overview" endpoint (by wildcard, new syntax)`, () => {
+    return request(app.getHttpServer())
+      .get('/splat-wildcard/overview')
+      .expect(200, RETURN_VALUE);
+  });
+
   it(`should exclude "/multiple/exclude" endpoint`, () => {
     return request(app.getHttpServer())
       .get('/multiple/exclude')

integration/hello-world/e2e/express-instance.spec.ts

@@ -3,10 +3,11 @@ import { ExpressAdapter } from '@nestjs/platform-express';
 import { Test } from '@nestjs/testing';
 import * as express from 'express';
 import * as request from 'supertest';
+import { App } from 'supertest/types';
 import { AppModule } from '../src/app.module';
 
 describe('Hello world (express instance)', () => {
-  let server;
+  let server: App;
   let app: INestApplication;
 
   beforeEach(async () => {

integration/hello-world/e2e/interceptors.spec.ts

@@ -48,7 +48,7 @@ export class HeaderInterceptor {
     const ctx = context.switchToHttp();
     const res = ctx.getResponse();
     for (const key in this.headers) {
-      if (this.headers.hasOwnProperty(key)) {
+      if (Object.prototype.hasOwnProperty.call(this.headers, key)) {
         res.header(key, this.headers[key]);
       }
     }

integration/hello-world/e2e/middleware-class.spec.ts

@@ -8,9 +8,9 @@ import {
   RequestMethod,
 } from '@nestjs/common';
 import { Test } from '@nestjs/testing';
+import { Response } from 'express';
 import * as request from 'supertest';
 import { AppModule } from '../src/app.module';
-import { Response } from 'express';
 
 const INCLUDED_VALUE = 'test_included';
 const RETURN_VALUE = 'test';

integration/hello-world/e2e/middleware-execute-order.spec.ts

@@ -1,20 +1,56 @@
-import { INestApplication, MiddlewareConsumer, Module } from '@nestjs/common';
+import {
+  Global,
+  INestApplication,
+  MiddlewareConsumer,
+  Module,
+} from '@nestjs/common';
 import { Test } from '@nestjs/testing';
 import * as request from 'supertest';
 
 const RETURN_VALUE_A = 'test_A';
 const RETURN_VALUE_B = 'test_B';
+const RETURN_VALUE_X = 'test_X';
+const RETURN_VALUE_GLOBAL = 'test_GLOBAL';
 
-@Module({
-  imports: [],
-})
+@Global()
+@Module({})
+class GlobalModule {
+  configure(consumer: MiddlewareConsumer) {
+    consumer
+      .apply((req, res, next) => res.send(RETURN_VALUE_GLOBAL))
+      .forRoutes('ping');
+  }
+}
+
+@Global()
+@Module({})
+class GlobalModule2 {
+  configure(consumer: MiddlewareConsumer) {
+    consumer
+      .apply((req, res, next) => res.send(RETURN_VALUE_GLOBAL + '2'))
+      .forRoutes('ping');
+  }
+}
+
+@Module({ imports: [GlobalModule, GlobalModule2] })
+class ModuleX {
+  configure(consumer: MiddlewareConsumer) {
+    consumer
+      .apply((req, res, next) => res.send(RETURN_VALUE_X))
+      .forRoutes('hello')
+      .apply((req, res, next) => res.send(RETURN_VALUE_X))
+      .forRoutes('ping');
+  }
+}
+
+@Module({ imports: [ModuleX] })
 class ModuleA {
   configure(consumer: MiddlewareConsumer) {
     consumer
-      .apply((req, res, next) => {
-        res.send(RETURN_VALUE_A);
-      })
-      .forRoutes('hello');
+      .apply((req, res, next) => res.send(RETURN_VALUE_A))
+      .forRoutes('hello')
+      .apply((req, res, next) => res.send(RETURN_VALUE_A))
+      .forRoutes('ping');
   }
 }
 
@@ -24,10 +60,10 @@ class ModuleA {
 class ModuleB {
   configure(consumer: MiddlewareConsumer) {
     consumer
-      .apply((req, res, next) => {
-        res.send(RETURN_VALUE_B);
-      })
-      .forRoutes('hello');
+      .apply((req, res, next) => res.send(RETURN_VALUE_B))
+      .forRoutes('hello')
+      .apply((req, res, next) => res.send(RETURN_VALUE_B))
+      .forRoutes('ping');
   }
 }
 
@@ -55,6 +91,12 @@ describe('Middleware (execution order)', () => {
       .expect(200, RETURN_VALUE_B);
   });
 
+  it('should execute global middleware first', () => {
+    return request(app.getHttpServer())
+      .get('/ping')
+      .expect(200, RETURN_VALUE_GLOBAL);
+  });
+
   afterEach(async () => {
     await app.close();
   });

integration/hello-world/e2e/middleware-fastify.spec.ts

@@ -15,6 +15,8 @@ import {
 } from '@nestjs/platform-fastify';
 import { Test } from '@nestjs/testing';
 import { expect } from 'chai';
+import { FastifyRequest } from 'fastify';
+import * as request from 'supertest';
 import { AppModule } from '../src/app.module';
 
 describe('Middleware (FastifyAdapter)', () => {
@@ -35,6 +37,11 @@ describe('Middleware (FastifyAdapter)', () => {
         return RETURN_VALUE;
       }
 
+      @Get('legacy_style_wildcard/wildcard_nested')
+      legacy_style_wildcard() {
+        return RETURN_VALUE;
+      }
+
       @Get('test')
       test() {
         return RETURN_VALUE;
@@ -74,9 +81,13 @@ describe('Middleware (FastifyAdapter)', () => {
           .apply((req, res, next) => res.end(INCLUDED_VALUE))
           .forRoutes({ path: 'tests/included', method: RequestMethod.POST })
           .apply((req, res, next) => res.end(REQ_URL_VALUE))
-          .forRoutes('req/url/(.*)')
+          .forRoutes('req/url/*')
           .apply((req, res, next) => res.end(WILDCARD_VALUE))
-          .forRoutes('express_style_wildcard/*', 'tests/(.*)')
+          .forRoutes(
+            'express_style_wildcard/*',
+            'tests/*path',
+            'legacy_style_wildcard/(.*)',
+          )
           .apply((req, res, next) => res.end(QUERY_VALUE))
           .forRoutes('query')
           .apply((req, res, next) => next())
@@ -85,7 +96,7 @@ describe('Middleware (FastifyAdapter)', () => {
           .forRoutes(TestController)
           .apply((req, res, next) => res.end(RETURN_VALUE))
           .exclude({ path: QUERY_VALUE, method: -1 as any })
-          .forRoutes('(.*)');
+          .forRoutes('*');
       }
     }
 
@@ -99,7 +110,7 @@ describe('Middleware (FastifyAdapter)', () => {
       await app.init();
     });
 
-    it(`forRoutes((.*))`, () => {
+    it(`forRoutes(*)`, () => {
       return app
         .inject({
           method: 'GET',
@@ -141,7 +152,7 @@ describe('Middleware (FastifyAdapter)', () => {
         .then(({ payload }) => expect(payload).to.be.eql(QUERY_VALUE));
     });
 
-    it(`forRoutes(tests/(.*))`, () => {
+    it(`forRoutes(tests/*path)`, () => {
       return app
         .inject({
           method: 'GET',
@@ -159,6 +170,15 @@ describe('Middleware (FastifyAdapter)', () => {
         .then(({ payload }) => expect(payload).to.be.eql(WILDCARD_VALUE));
     });
 
+    it(`forRoutes(legacy_style_wildcard/*)`, () => {
+      return app
+        .inject({
+          method: 'GET',
+          url: '/legacy_style_wildcard/wildcard_nested',
+        })
+        .then(({ payload }) => expect(payload).to.be.eql(WILDCARD_VALUE));
+    });
+
     it(`forRoutes(req/url/)`, () => {
       const reqUrl = '/test';
       return app
@@ -398,4 +418,157 @@ describe('Middleware (FastifyAdapter)', () => {
       await app.close();
     });
   });
+
+  describe('should have data attached in middleware', () => {
+    @Controller()
+    class DataController {
+      @Get('data')
+      async data(@Req() req: FastifyRequest['raw']) {
+        return {
+          success: true,
+          extras: req?.['raw']?.extras,
+          pong: req?.['raw']?.headers?.ping,
+        };
+      }
+      @Get('pong')
+      async pong(@Req() req: FastifyRequest['raw']) {
+        return { success: true, pong: req?.['raw']?.headers?.ping };
+      }
+
+      @Get('')
+      async rootPath(@Req() req: FastifyRequest['raw']) {
+        return { success: true, root: true };
+      }
+    }
+
+    @Module({
+      controllers: [DataController],
+    })
+    class DataModule implements NestModule {
+      configure(consumer: MiddlewareConsumer) {
+        consumer
+          .apply((req, res, next) => {
+            req.extras = { data: 'Data attached in middleware' };
+            req.headers['ping'] = 'pong';
+
+            // When global prefix is set and the route is the root path
+            if (req.originalUrl === '/api') {
+              return res.end(JSON.stringify({ success: true, pong: 'pong' }));
+            }
+            next();
+          })
+          .forRoutes('{*path}');
+      }
+    }
+
+    beforeEach(async () => {
+      app = (
+        await Test.createTestingModule({
+          imports: [DataModule],
+        }).compile()
+      ).createNestApplication<NestFastifyApplication>(new FastifyAdapter());
+    });
+
+    it(`GET forRoutes('{*path}') with global prefix (route: /api/pong)`, async () => {
+      app.setGlobalPrefix('/api');
+      await app.init();
+      await app.getHttpAdapter().getInstance().ready();
+      return app
+        .inject({
+          method: 'GET',
+          url: '/api/pong',
+        })
+        .then(({ payload }) =>
+          expect(payload).to.be.eql(
+            JSON.stringify({
+              success: true,
+              pong: 'pong',
+            }),
+          ),
+        );
+    });
+
+    it(`GET forRoutes('{*path}') with global prefix (route: /api)`, async () => {
+      app.setGlobalPrefix('/api');
+      await app.init();
+      await app.getHttpAdapter().getInstance().ready();
+      return app
+        .inject({
+          method: 'GET',
+          url: '/api',
+        })
+        .then(({ payload }) =>
+          expect(payload).to.be.eql(
+            JSON.stringify({
+              success: true,
+              pong: 'pong',
+            }),
+          ),
+        );
+    });
+
+    it(`GET forRoutes('{*path}') without prefix config`, async () => {
+      await app.init();
+      await app.getHttpAdapter().getInstance().ready();
+      return app
+        .inject({
+          method: 'GET',
+          url: '/pong',
+        })
+        .then(({ payload }) =>
+          expect(payload).to.be.eql(
+            JSON.stringify({
+              success: true,
+              pong: 'pong',
+            }),
+          ),
+        );
+    });
+
+    it(`GET forRoutes('{*path}') with global prefix and exclude patterns`, async () => {
+      app.setGlobalPrefix('/api', { exclude: ['/'] });
+      await app.init();
+      await app.getHttpAdapter().getInstance().ready();
+
+      await request(app.getHttpServer())
+        .get('/')
+        .expect(200, { success: true, root: true });
+    });
+
+    it(`GET forRoutes('{*path}') with global prefix and global prefix options`, async () => {
+      app.setGlobalPrefix('/api', { exclude: ['/'] });
+      await app.init();
+      await app.getHttpAdapter().getInstance().ready();
+
+      await request(app.getHttpServer())
+        .get('/api/data')
+        .expect(200, {
+          success: true,
+          extras: { data: 'Data attached in middleware' },
+          pong: 'pong',
+        });
+      await request(app.getHttpServer())
+        .get('/')
+        .expect(200, { success: true, root: true });
+    });
+
+    it(`GET forRoutes('{*path}') with global prefix that not starts with /`, async () => {
+      app.setGlobalPrefix('api');
+      await app.init();
+      await app.getHttpAdapter().getInstance().ready();
+
+      await request(app.getHttpServer())
+        .get('/api/data')
+        .expect(200, {
+          success: true,
+          extras: { data: 'Data attached in middleware' },
+          pong: 'pong',
+        });
+      await request(app.getHttpServer()).get('/').expect(404);
+    });
+
+    afterEach(async () => {
+      await app.close();
+    });
+  });
 });

integration/hello-world/e2e/middleware.spec.ts

@@ -26,6 +26,11 @@ class TestController {
     return RETURN_VALUE;
   }
 
+  @Get('legacy-wildcard/overview')
+  legacyWildcard() {
+    return RETURN_VALUE;
+  }
+
   @Get('exclude')
   exclude() {
     return EXCLUDE_VALUE;
@@ -40,7 +45,7 @@ class TestModule {
   configure(consumer: MiddlewareConsumer) {
     consumer
       .apply((req, res, next) => res.send(WILDCARD_VALUE))
-      .forRoutes('tests/*')
+      .forRoutes('tests/*path', 'legacy-wildcard/*')
       .apply((req, res, next) => res.send(SCOPED_VALUE))
       .exclude('exclude')
       .forRoutes(TestController)
@@ -86,6 +91,13 @@ describe('Middleware', () => {
       .expect(200, WILDCARD_VALUE);
   });
 
+  it(`forRoutes(legacy-wildcard/*)`, async () => {
+    app = await createApp();
+    return request(app.getHttpServer())
+      .get('/legacy-wildcard/overview')
+      .expect(200, WILDCARD_VALUE);
+  });
+
   afterEach(async () => {
     await app.close();
   });

integration/hello-world/src/host-array/host-array.controller.ts

@@ -18,7 +18,7 @@ export class HostArrayController {
 
   @Get('async')
   async asyncGreeting(@HostParam('tenant') tenant: string): Promise<string> {
-    return `${await this.hostService.greeting()} tenant=${tenant}`;
+    return `${this.hostService.greeting()} tenant=${tenant}`;
   }
 
   @Get('stream')

integration/hello-world/src/host/host.controller.ts

@@ -18,7 +18,7 @@ export class HostController {
 
   @Get('async')
   async asyncGreeting(@HostParam('tenant') tenant: string): Promise<string> {
-    return `${await this.hostService.greeting()} tenant=${tenant}`;
+    return `${this.hostService.greeting()} tenant=${tenant}`;
   }
 
   @Get('stream')

integration/hello-world/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/hooks/e2e/before-app-shutdown.spec.ts

@@ -23,10 +23,7 @@ describe('BeforeApplicationShutdown', () => {
   it('should sort modules by distance (topological sort) - DESC order', async () => {
     @Injectable()
     class BB implements BeforeApplicationShutdown {
-      public field: string;
-      async beforeApplicationShutdown() {
-        this.field = 'b-field';
-      }
+      beforeApplicationShutdown = Sinon.spy();
     }
 
     @Module({
@@ -37,12 +34,8 @@ describe('BeforeApplicationShutdown', () => {
 
     @Injectable()
     class AA implements BeforeApplicationShutdown {
-      public field: string;
       constructor(private bb: BB) {}
-
-      async beforeApplicationShutdown() {
-        this.field = this.bb.field + '_a-field';
-      }
+      beforeApplicationShutdown = Sinon.spy();
     }
     @Module({
       imports: [B],
@@ -58,7 +51,11 @@ describe('BeforeApplicationShutdown', () => {
     await app.init();
     await app.close();
 
-    const instance = module.get(AA);
-    expect(instance.field).to.equal('b-field_a-field');
+    const aa = module.get(AA);
+    const bb = module.get(BB);
+    Sinon.assert.callOrder(
+      aa.beforeApplicationShutdown,
+      bb.beforeApplicationShutdown,
+    );
   });
 });

integration/hooks/e2e/on-app-shutdown.spec.ts

@@ -23,10 +23,7 @@ describe('OnApplicationShutdown', () => {
   it('should sort modules by distance (topological sort) - DESC order', async () => {
     @Injectable()
     class BB implements OnApplicationShutdown {
-      public field: string;
-      async onApplicationShutdown() {
-        this.field = 'b-field';
-      }
+      onApplicationShutdown = Sinon.spy();
     }
 
     @Module({
@@ -37,12 +34,8 @@ describe('OnApplicationShutdown', () => {
 
     @Injectable()
     class AA implements OnApplicationShutdown {
-      public field: string;
       constructor(private bb: BB) {}
-
-      async onApplicationShutdown() {
-        this.field = this.bb.field + '_a-field';
-      }
+      onApplicationShutdown = Sinon.spy();
     }
     @Module({
       imports: [B],
@@ -58,7 +51,8 @@ describe('OnApplicationShutdown', () => {
     await app.init();
     await app.close();
 
-    const instance = module.get(AA);
-    expect(instance.field).to.equal('b-field_a-field');
+    const aa = module.get(AA);
+    const bb = module.get(BB);
+    Sinon.assert.callOrder(aa.onApplicationShutdown, bb.onApplicationShutdown);
   });
 });

integration/hooks/e2e/on-module-destroy.spec.ts

@@ -43,10 +43,7 @@ describe('OnModuleDestroy', () => {
   it('should sort modules by distance (topological sort) - DESC order', async () => {
     @Injectable()
     class BB implements OnModuleDestroy {
-      public field: string;
-      async onModuleDestroy() {
-        this.field = 'b-field';
-      }
+      onModuleDestroy = Sinon.spy();
     }
 
     @Module({
@@ -57,13 +54,10 @@ describe('OnModuleDestroy', () => {
 
     @Injectable()
     class AA implements OnModuleDestroy {
-      public field: string;
       constructor(private bb: BB) {}
-
-      async onModuleDestroy() {
-        this.field = this.bb.field + '_a-field';
-      }
+      onModuleDestroy = Sinon.spy();
     }
+
     @Module({
       imports: [B],
       providers: [AA],
@@ -78,7 +72,8 @@ describe('OnModuleDestroy', () => {
     await app.init();
     await app.close();
 
-    const instance = module.get(AA);
-    expect(instance.field).to.equal('b-field_a-field');
+    const aa = module.get(AA);
+    const bb = module.get(BB);
+    Sinon.assert.callOrder(aa.onModuleDestroy, bb.onModuleDestroy);
   });
 });

integration/hooks/e2e/on-module-init.spec.ts

@@ -39,11 +39,39 @@ describe('OnModuleInit', () => {
   });
 
   it('should sort modules by distance (topological sort) - DESC order', async () => {
+    @Injectable()
+    class CC implements OnModuleInit {
+      public field: string;
+
+      async onModuleInit() {
+        this.field = 'c-field';
+      }
+    }
+
+    @Module({})
+    class C {
+      static forRoot() {
+        return {
+          module: C,
+          global: true,
+          providers: [
+            {
+              provide: CC,
+              useValue: new CC(),
+            },
+          ],
+          exports: [CC],
+        };
+      }
+    }
+
     @Injectable()
     class BB implements OnModuleInit {
       public field: string;
+      constructor(private cc: CC) {}
+
       async onModuleInit() {
-        this.field = 'b-field';
+        this.field = this.cc.field + '_b-field';
       }
     }
 
@@ -68,14 +96,19 @@ describe('OnModuleInit', () => {
     })
     class A {}
 
+    @Module({
+      imports: [A, C.forRoot()],
+    })
+    class AppModule {}
+
     const module = await Test.createTestingModule({
-      imports: [A],
+      imports: [AppModule],
     }).compile();
 
     const app = module.createNestApplication();
     await app.init();
 
     const instance = module.get(AA);
-    expect(instance.field).to.equal('b-field_a-field');
+    expect(instance.field).to.equal('c-field_b-field_a-field');
   });
 });

integration/hooks/src/enable-shutdown-hooks-main.ts

@@ -39,4 +39,4 @@ async function bootstrap() {
   process.kill(process.pid, SIGNAL);
 }
 
-bootstrap();
+void bootstrap();

integration/hooks/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/injector/src/circular-structure-dynamic-module/circular.module.ts

@@ -6,7 +6,7 @@ export class CircularModule {
     const a = {
       module: CircularModule,
       providers: [InputService],
-      b: null,
+      b: null as any,
     };
     a.b = a;
     return a;

integration/injector/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/inspector/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/lazy-modules/e2e/lazy-import-global-modules.spec.ts

@@ -2,12 +2,11 @@ import { INestApplication } from '@nestjs/common';
 import { Test } from '@nestjs/testing';
 import * as chai from 'chai';
 import { expect } from 'chai';
-import chaiAsPromised = require('chai-as-promised');
 import { AppModule } from '../src/app.module';
+import chaiAsPromised = require('chai-as-promised');
 chai.use(chaiAsPromised);
 
 describe('Lazy imports', () => {
-  let server;
   let app: INestApplication;
 
   beforeEach(async () => {
@@ -16,7 +15,6 @@ describe('Lazy imports', () => {
     }).compile();
 
     app = module.createNestApplication();
-    server = app.getHttpAdapter().getInstance();
   });
 
   it(`should allow imports of global modules`, async () => {

integration/lazy-modules/src/main.ts

@@ -5,4 +5,4 @@ async function bootstrap() {
   const app = await NestFactory.create(AppModule);
   await app.listen(3000);
 }
-bootstrap();
+void bootstrap();

integration/lazy-modules/tsconfig.json

@@ -0,0 +1,41 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "declaration": false,
+    "noImplicitAny": false,
+    "removeComments": true,
+    "noLib": false,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "target": "ES2021",
+    "sourceMap": true,
+    "allowJs": true,
+    "strictNullChecks": true,
+    "outDir": "./dist",
+    "paths": {
+      "@nestjs/common": ["../../packages/common"],
+      "@nestjs/common/*": ["../../packages/common/*"],
+      "@nestjs/core": ["../../packages/core"],
+      "@nestjs/core/*": ["../../packages/core/*"],
+      "@nestjs/microservices": ["../../packages/microservices"],
+      "@nestjs/microservices/*": ["../../packages/microservices/*"],
+      "@nestjs/websockets": ["../../packages/websockets"],
+      "@nestjs/websockets/*": ["../../packages/websockets/*"],
+      "@nestjs/testing": ["../../packages/testing"],
+      "@nestjs/testing/*": ["../../packages/testing/*"],
+      "@nestjs/platform-express": ["../../packages/platform-express"],
+      "@nestjs/platform-express/*": ["../../packages/platform-express/*"],
+      "@nestjs/platform-socket.io": ["../../packages/platform-socket.io"],
+      "@nestjs/platform-socket.io/*": ["../../packages/platform-socket.io/*"],
+      "@nestjs/platform-ws": ["../../packages/platform-ws"],
+      "@nestjs/platform-ws/*": ["../../packages/platform-ws/*"]
+    }
+  },
+  "include": [
+    "src/**/*",
+    "e2e/**/*"
+  ],
+  "exclude": [
+    "node_modules",
+  ]
+}

integration/microservices/e2e/concurrent-kafka.spec.ts

@@ -100,7 +100,7 @@ describe.skip('Kafka concurrent', function () {
       }
     }
 
-    if (topicMetadata && topicMetadata.topics.length > 0) {
+    if (topicMetadata! && topicMetadata.topics.length > 0) {
       // we have topics, how many partitions do they have?
       for (const topic of topicMetadata.topics) {
         if (topic.partitions.length < numbersOfServers) {

integration/microservices/e2e/disconnected-client.spec.ts

@@ -2,10 +2,11 @@ import { INestApplication } from '@nestjs/common';
 import { Transport } from '@nestjs/microservices';
 import { Test } from '@nestjs/testing';
 import * as request from 'supertest';
+import { App } from 'supertest/types';
 import { DisconnectedClientController } from '../src/disconnected.controller';
 
 describe('Disconnected client', () => {
-  let server;
+  let server: App;
   let app: INestApplication;
 
   beforeEach(async () => {

integration/microservices/e2e/math-grpc.spec.ts

@@ -180,7 +180,7 @@ describe('GRPC transport', () => {
 
         stream.on('error', err => {
           if (err.code !== GRPC.status.CANCELLED) {
-            reject(err);
+            reject(err as Error);
           }
         });
 

integration/microservices/e2e/sum-kafka.spec.ts

@@ -91,7 +91,7 @@ describe.skip('Kafka transport', function () {
   });
 
   it(`/POST (async event notification)`, done => {
-    request(server)
+    void request(server)
       .post('/notify')
       .send()
       .end(() => {
@@ -123,7 +123,7 @@ describe.skip('Kafka transport', function () {
   });
 
   it(`/POST (sync command create user) Concurrency Test`, async () => {
-    const promises = [];
+    const promises = [] as Array<Promise<any>>;
     for (let concurrencyKey = 0; concurrencyKey < 100; concurrencyKey++) {
       const innerUserDto = JSON.parse(JSON.stringify(userDto));
       innerUserDto.name += `+${concurrencyKey}`;

integration/microservices/e2e/sum-mqtt.spec.ts

@@ -75,7 +75,7 @@ describe('MQTT transport', () => {
   }).timeout(5000);
 
   it(`/POST (event notification)`, done => {
-    request(server)
+    void request(server)
       .post('/notify')
       .send([1, 2, 3, 4, 5])
       .end(() => {
@@ -87,7 +87,7 @@ describe('MQTT transport', () => {
   });
 
   it(`/POST (wildcard EVENT #)`, done => {
-    request(server)
+    void request(server)
       .post('/wildcard-event')
       .send([1, 2, 3, 4, 5])
       .end(() => {
@@ -106,7 +106,7 @@ describe('MQTT transport', () => {
   });
 
   it(`/POST (wildcard EVENT +)`, done => {
-    request(server)
+    void request(server)
       .post('/wildcard-event2')
       .send([1, 2, 3, 4, 5])
       .end(() => {
@@ -125,7 +125,7 @@ describe('MQTT transport', () => {
   });
 
   it(`/POST (shared wildcard EVENT #)`, done => {
-    request(server)
+    void request(server)
       .post('/shared-wildcard-event')
       .send([1, 2, 3, 4, 5])
       .end(() => {
@@ -144,7 +144,7 @@ describe('MQTT transport', () => {
   });
 
   it(`/POST (shared wildcard EVENT +)`, done => {
-    request(server)
+    void request(server)
       .post('/shared-wildcard-event2')
       .send([1, 2, 3, 4, 5])
       .end(() => {

integration/microservices/e2e/sum-nats.spec.ts

@@ -84,7 +84,7 @@ describe('NATS transport', () => {
   });
 
   it(`/POST (event notification)`, done => {
-    request(server)
+    void request(server)
       .post('/notify')
       .send([1, 2, 3, 4, 5])
       .end(() => {

integration/microservices/e2e/sum-redis.spec.ts

@@ -78,7 +78,7 @@ describe('REDIS transport', () => {
   });
 
   it(`/POST (event notification)`, done => {
-    request(server)
+    void request(server)
       .post('/notify')
       .send([1, 2, 3, 4, 5])
       .end(() => {

integration/microservices/e2e/sum-rmq.spec.ts

@@ -85,7 +85,7 @@ describe('RabbitMQ transport', () => {
   }).timeout(10000);
 
   it(`/POST (event notification)`, done => {
-    request(server)
+    void request(server)
       .post('/notify')
       .send([1, 2, 3, 4, 5])
       .end(() => {

integration/microservices/e2e/sum-rpc-async.spec.ts

@@ -0,0 +1,98 @@
+import {
+  Controller,
+  INestMicroservice,
+  Injectable,
+  Module,
+} from '@nestjs/common';
+import { NestFactory } from '@nestjs/core';
+import {
+  AsyncOptions,
+  ClientTCP,
+  ClientsModule,
+  MessagePattern,
+  MicroserviceOptions,
+  Payload,
+  TcpOptions,
+  Transport,
+} from '@nestjs/microservices';
+import { expect } from 'chai';
+
+let port: number;
+
+do {
+  port = Math.round(Math.random() * 10000);
+} while (port < 1000);
+
+@Injectable()
+class RpcOptionsProvider {
+  getOptions(): TcpOptions {
+    return {
+      transport: Transport.TCP,
+      options: {
+        port,
+        host: '0.0.0.0',
+      },
+    };
+  }
+}
+
+@Controller()
+class RpcController {
+  @MessagePattern({ cmd: 'sum' })
+  sumPayload(@Payload() payload: number[]) {
+    return payload.reduce((a, b) => a + b, 0);
+  }
+}
+
+@Module({
+  imports: [
+    ClientsModule.register([
+      {
+        name: 'RPC_CLIENT',
+        transport: Transport.TCP,
+        options: {
+          port,
+          host: '0.0.0.0',
+        },
+      },
+    ]),
+  ],
+  controllers: [RpcController],
+  providers: [RpcOptionsProvider],
+})
+class RpcModule {}
+
+describe('RPC Async transport', () => {
+  let app: INestMicroservice;
+  let client: ClientTCP;
+
+  beforeEach(async () => {
+    app = await NestFactory.createMicroservice<
+      AsyncOptions<MicroserviceOptions>
+    >(RpcModule, {
+      logger: false,
+      inject: [RpcOptionsProvider],
+      useFactory: (optionsProvider: RpcOptionsProvider) =>
+        optionsProvider.getOptions(),
+    });
+
+    await app.listen();
+    client = app.get('RPC_CLIENT', { strict: false });
+  });
+
+  it(`/POST`, done => {
+    let retData = 0;
+    client.send({ cmd: 'sum' }, [1, 2, 3, 4, 5]).subscribe({
+      next: val => (retData += val),
+      error: done,
+      complete: () => {
+        expect(retData).to.eq(15);
+        done();
+      },
+    });
+  });
+
+  afterEach(async () => {
+    await app.close();
+  });
+});

integration/microservices/e2e/sum-rpc-tls.spec.ts

@@ -2,11 +2,11 @@ import { INestApplication } from '@nestjs/common';
 import { Transport } from '@nestjs/microservices';
 import { Test } from '@nestjs/testing';
 import { expect } from 'chai';
+import * as fs from 'fs';
+import * as path from 'path';
 import * as request from 'supertest';
 import { AppController } from '../src/tcp-tls/app.controller';
 import { ApplicationModule } from '../src/tcp-tls/app.module';
-import * as fs from 'fs';
-import * as path from 'path';
 
 describe('RPC TLS transport', () => {
   let server;
@@ -109,7 +109,7 @@ describe('RPC TLS transport', () => {
   });
 
   it(`/POST (event notification)`, done => {
-    request(server)
+    void request(server)
       .post('/notify')
       .send([1, 2, 3, 4, 5])
       .end(() => {

integration/microservices/e2e/sum-rpc.spec.ts

@@ -94,7 +94,7 @@ describe('RPC transport', () => {
   });
 
   it(`/POST (event notification)`, done => {
-    request(server)
+    void request(server)
       .post('/notify')
       .send([1, 2, 3, 4, 5])
       .end(() => {

integration/microservices/src/disconnected.controller.ts

@@ -7,7 +7,7 @@ import {
 } from '@nestjs/common';
 import { ClientProxyFactory } from '@nestjs/microservices';
 import { Observable, throwError } from 'rxjs';
-import { catchError } from 'rxjs/operators';
+import { catchError, tap } from 'rxjs/operators';
 
 @Controller()
 export class DisconnectedClientController {
@@ -31,6 +31,9 @@ export class DisconnectedClientController {
             : new InternalServerErrorException(),
         );
       }),
+      tap({
+        error: () => client.close(),
+      }),
     );
   }
 }

integration/microservices/src/grpc/grpc.controller.ts

@@ -2,15 +2,15 @@ import { Body, Controller, HttpCode, Post, Query } from '@nestjs/common';
 import {
   Client,
   ClientGrpc,
+  ClientGrpcProxy,
   GrpcMethod,
   GrpcStreamCall,
   GrpcStreamMethod,
-  Transport,
-  ClientGrpcProxy,
   RpcException,
+  Transport,
 } from '@nestjs/microservices';
 import { join } from 'path';
-import { Observable, of, catchError, from, mergeMap } from 'rxjs';
+import { catchError, from, mergeMap, Observable, of } from 'rxjs';
 
 class ErrorHandlingProxy extends ClientGrpcProxy {
   serializeError(err) {
@@ -81,7 +81,7 @@ export class GrpcController {
           });
         },
         error: err => {
-          reject(err);
+          reject(err as Error);
         },
       });
     });

integration/microservices/src/kafka-concurrent/kafka-concurrent.controller.ts

@@ -17,7 +17,7 @@ import { SumDto } from './dto/sum.dto';
  */
 const explicitPartitioner = () => {
   return ({ message }: PartitionerArgs) => {
-    return parseFloat(message.headers.toPartition.toString());
+    return parseFloat(message.headers!.toPartition!.toString());
   };
 };
 

integration/microservices/src/main.ts

@@ -5,4 +5,4 @@ async function bootstrap() {
   const app = await NestFactory.create(ApplicationModule);
   await app.listen(3000);
 }
-bootstrap();
+void bootstrap();

integration/microservices/src/mqtt/mqtt.controller.ts

@@ -138,7 +138,7 @@ export class MqttController {
   }
 
   @MessagePattern('wildcard-message/#')
-  wildcardMessageHandler(data: number[]): number {
+  wildcardMessageHandler(data: number[]): number | undefined {
     if ((data as any).response) {
       return;
     }
@@ -186,7 +186,7 @@ export class MqttController {
   }
 
   @MessagePattern('$share/test-group/shared-wildcard-message/#')
-  sharedWildcardMessageHandler(data: number[]): number {
+  sharedWildcardMessageHandler(data: number[]): number | undefined {
     if ((data as any).response) {
       return;
     }

integration/microservices/src/tcp-tls/app.module.ts

@@ -1,13 +1,13 @@
-import { Module, Injectable } from '@nestjs/common';
-import { AppController } from './app.controller';
+import { Injectable, Module } from '@nestjs/common';
 import {
-  ClientsModule,
-  Transport,
-  ClientsModuleOptionsFactory,
   ClientOptions,
+  ClientsModule,
+  ClientsModuleOptionsFactory,
   ClientTCP,
   RpcException,
+  Transport,
 } from '@nestjs/microservices';
+import { AppController } from './app.controller';
 
 import * as fs from 'fs';
 import * as path from 'path';

integration/microservices/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/module-utils/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],
@@ -32,7 +33,8 @@
   },
   "include": [
     "src/**/*",
-    "e2e/**/*"
+    "e2e/**/*",
+    "test/**/*"
   ],
   "exclude": [
     "node_modules",

integration/mongoose/src/main.ts

@@ -5,4 +5,4 @@ async function bootstrap() {
   const app = await NestFactory.create(ApplicationModule);
   await app.listen(3001);
 }
-bootstrap();
+void bootstrap();

integration/mongoose/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/nest-application/app-locals/tsconfig.json

@@ -11,6 +11,7 @@
     "sourceMap": true,
     "allowJs": true,
     "outDir": "./dist",
+    "strictNullChecks": true,
     "paths": {
       "@nestjs/common": ["../../../packages/common"],
       "@nestjs/common/*": ["../../../packages/common/*"],
@@ -20,8 +21,8 @@
       "@nestjs/microservices/*": ["../../../packages/microservices/*"],
       "@nestjs/websockets": ["../../../packages/websockets"],
       "@nestjs/websockets/*": ["../../../packages/websockets/*"],
-      "@nestjs/testing": ["../../../packages/websockets"],
-      "@nestjs/testing/*": ["../../../packages/websockets/*"],
+      "@nestjs/testing": ["../../../packages/testing"],
+      "@nestjs/testing/*": ["../../../packages/testing/*"],
       "@nestjs/platform-express": ["../../../packages/platform-express"],
       "@nestjs/platform-express/*": ["../../../packages/platform-express/*"],
       "@nestjs/platform-socket.io": ["../../../packages/platform-socket.io"],

integration/nest-application/get-url/tsconfig.json

@@ -11,6 +11,7 @@
     "sourceMap": true,
     "allowJs": true,
     "outDir": "./dist",
+    "strictNullChecks": true,
     "paths": {
       "@nestjs/common": ["../../../packages/common"],
       "@nestjs/common/*": ["../../../packages/common/*"],
@@ -20,8 +21,8 @@
       "@nestjs/microservices/*": ["../../../packages/microservices/*"],
       "@nestjs/websockets": ["../../../packages/websockets"],
       "@nestjs/websockets/*": ["../../../packages/websockets/*"],
-      "@nestjs/testing": ["../../../packages/websockets"],
-      "@nestjs/testing/*": ["../../../packages/websockets/*"],
+      "@nestjs/testing": ["../../../packages/testing"],
+      "@nestjs/testing/*": ["../../../packages/testing/*"],
       "@nestjs/platform-express": ["../../../packages/platform-express"],
       "@nestjs/platform-express/*": ["../../../packages/platform-express/*"],
       "@nestjs/platform-socket.io": ["../../../packages/platform-socket.io"],

integration/nest-application/global-prefix/e2e/global-prefix.spec.ts

@@ -127,7 +127,7 @@ describe('Global prefix', () => {
 
     await request(server)
       .get('/api/test/params')
-      .expect(200, { '0': 'params', tenantId: 'test' });
+      .expect(200, { tenantId: 'test', path: ['params'] });
   });
 
   it(`should execute middleware only once`, async () => {

integration/nest-application/global-prefix/src/app.module.ts

@@ -16,24 +16,30 @@ export class AppModule {
       .apply((req, res, next) => res.status(201).end(MIDDLEWARE_VALUE))
       .forRoutes({ path: MIDDLEWARE_VALUE, method: RequestMethod.POST })
       .apply((req, res, next) => res.end(MIDDLEWARE_PARAM_VALUE))
-      .forRoutes({ path: MIDDLEWARE_VALUE + '/*', method: RequestMethod.GET })
+      .forRoutes({
+        path: MIDDLEWARE_VALUE + '/*path',
+        method: RequestMethod.GET,
+      })
       .apply((req, res, next) => res.status(201).end(MIDDLEWARE_PARAM_VALUE))
-      .forRoutes({ path: MIDDLEWARE_VALUE + '/*', method: RequestMethod.POST })
+      .forRoutes({
+        path: MIDDLEWARE_VALUE + '/*path',
+        method: RequestMethod.POST,
+      })
       .apply((req, res, next) => {
         req.extras = { data: 'Data attached in middleware' };
         next();
       })
-      .forRoutes({ path: '*', method: RequestMethod.GET })
+      .forRoutes({ path: '*path', method: RequestMethod.GET })
       .apply((req, res, next) => {
         req.middlewareParams = req.params;
         next();
       })
-      .forRoutes({ path: '*', method: RequestMethod.GET })
+      .forRoutes({ path: '*path', method: RequestMethod.GET })
       .apply((req, res, next) => {
         this.count += 1;
         req.count = this.count;
         next();
       })
-      .forRoutes('*');
+      .forRoutes('*path');
   }
 }

integration/nest-application/global-prefix/tsconfig.json

@@ -11,6 +11,7 @@
     "sourceMap": true,
     "allowJs": true,
     "outDir": "./dist",
+    "strictNullChecks": true,
     "paths": {
       "@nestjs/common": ["../../../packages/common"],
       "@nestjs/common/*": ["../../../packages/common/*"],
@@ -20,8 +21,8 @@
       "@nestjs/microservices/*": ["../../../packages/microservices/*"],
       "@nestjs/websockets": ["../../../packages/websockets"],
       "@nestjs/websockets/*": ["../../../packages/websockets/*"],
-      "@nestjs/testing": ["../../../packages/websockets"],
-      "@nestjs/testing/*": ["../../../packages/websockets/*"],
+      "@nestjs/testing": ["../../../packages/testing"],
+      "@nestjs/testing/*": ["../../../packages/testing/*"],
       "@nestjs/platform-express": ["../../../packages/platform-express"],
       "@nestjs/platform-express/*": ["../../../packages/platform-express/*"],
       "@nestjs/platform-socket.io": ["../../../packages/platform-socket.io"],

integration/nest-application/listen/e2e/express.spec.ts

@@ -1,9 +1,9 @@
+import { INestApplication } from '@nestjs/common';
 import { ExpressAdapter } from '@nestjs/platform-express';
 import { Test, TestingModule } from '@nestjs/testing';
 import { expect } from 'chai';
 import * as express from 'express';
 import { AppModule } from '../src/app.module';
-import { INestApplication } from '@nestjs/common';
 
 describe('Listen (Express Application)', () => {
   let testModule: TestingModule;
@@ -17,7 +17,7 @@ describe('Listen (Express Application)', () => {
   });
 
   afterEach(async () => {
-    app.close();
+    await app.close();
   });
 
   it('should resolve with httpServer on success', async () => {

integration/nest-application/listen/e2e/fastify.spec.ts

@@ -16,7 +16,7 @@ describe('Listen (Fastify Application)', () => {
   });
 
   afterEach(async () => {
-    app.close();
+    await app.close();
   });
 
   it('should resolve with httpServer on success', async () => {

integration/nest-application/listen/tsconfig.json

@@ -0,0 +1,41 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "declaration": false,
+    "noImplicitAny": false,
+    "removeComments": true,
+    "noLib": false,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "target": "ES2021",
+    "sourceMap": true,
+    "allowJs": true,
+    "outDir": "./dist",
+    "strictNullChecks": true,
+    "paths": {
+      "@nestjs/common": ["../../../packages/common"],
+      "@nestjs/common/*": ["../../../packages/common/*"],
+      "@nestjs/core": ["../../../packages/core"],
+      "@nestjs/core/*": ["../../../packages/core/*"],
+      "@nestjs/microservices": ["../../../packages/microservices"],
+      "@nestjs/microservices/*": ["../../../packages/microservices/*"],
+      "@nestjs/websockets": ["../../../packages/websockets"],
+      "@nestjs/websockets/*": ["../../../packages/websockets/*"],
+      "@nestjs/testing": ["../../../packages/testing"],
+      "@nestjs/testing/*": ["../../../packages/testing/*"],
+      "@nestjs/platform-express": ["../../../packages/platform-express"],
+      "@nestjs/platform-express/*": ["../../../packages/platform-express/*"],
+      "@nestjs/platform-socket.io": ["../../../packages/platform-socket.io"],
+      "@nestjs/platform-socket.io/*": ["../../../packages/platform-socket.io/*"],
+      "@nestjs/platform-ws": ["../../../packages/platform-ws"],
+      "@nestjs/platform-ws/*": ["../../../packages/platform-ws/*"]
+    }
+  },
+  "include": [
+    "src/**/*",
+    "e2e/**/*"
+  ],
+  "exclude": [
+    "node_modules",
+  ]
+}

integration/nest-application/raw-body/src/express.controller.ts

@@ -7,7 +7,7 @@ export class ExpressController {
   getRawBody(@Req() req: RawBodyRequest<Request>) {
     return {
       parsed: req.body,
-      raw: req.rawBody.toString(),
+      raw: req.rawBody!.toString(),
     };
   }
 }

integration/nest-application/raw-body/src/fastify.controller.ts

@@ -7,7 +7,7 @@ export class FastifyController {
   getRawBody(@Req() req: RawBodyRequest<FastifyRequest>) {
     return {
       parsed: req.body,
-      raw: req.rawBody.toString(),
+      raw: req.rawBody!.toString(),
     };
   }
 }

integration/nest-application/raw-body/tsconfig.json

@@ -11,6 +11,7 @@
     "sourceMap": true,
     "allowJs": true,
     "outDir": "./dist",
+    "strictNullChecks": true,
     "paths": {
       "@nestjs/common": ["../../../packages/common"],
       "@nestjs/common/*": ["../../../packages/common/*"],
@@ -20,8 +21,8 @@
       "@nestjs/microservices/*": ["../../../packages/microservices/*"],
       "@nestjs/websockets": ["../../../packages/websockets"],
       "@nestjs/websockets/*": ["../../../packages/websockets/*"],
-      "@nestjs/testing": ["../../../packages/websockets"],
-      "@nestjs/testing/*": ["../../../packages/websockets/*"],
+      "@nestjs/testing": ["../../../packages/testing"],
+      "@nestjs/testing/*": ["../../../packages/testing/*"],
       "@nestjs/platform-express": ["../../../packages/platform-express"],
       "@nestjs/platform-express/*": ["../../../packages/platform-express/*"],
       "@nestjs/platform-socket.io": ["../../../packages/platform-socket.io"],

integration/nest-application/sse/e2e/express.spec.ts

@@ -1,7 +1,7 @@
 import { NestExpressApplication } from '@nestjs/platform-express';
 import { Test } from '@nestjs/testing';
 import { expect } from 'chai';
-import * as EventSource from 'eventsource';
+import { EventSource } from 'eventsource';
 import { AppModule } from '../src/app.module';
 
 describe('Sse (Express Application)', () => {
@@ -20,7 +20,14 @@ describe('Sse (Express Application)', () => {
       const url = await app.getUrl();
 
       eventSource = new EventSource(url + '/sse', {
-        headers: { connection: 'keep-alive' },
+        fetch: (input, init) =>
+          fetch(input, {
+            ...init,
+            headers: {
+              ...init?.headers,
+              connection: 'keep-alive',
+            },
+          }),
       });
     });
 
@@ -57,7 +64,14 @@ describe('Sse (Express Application)', () => {
       const url = await app.getUrl();
 
       eventSource = new EventSource(url + '/sse', {
-        headers: { connection: 'keep-alive' },
+        fetch: (input, init) =>
+          fetch(input, {
+            ...init,
+            headers: {
+              ...init?.headers,
+              connection: 'keep-alive',
+            },
+          }),
       });
     });
 

integration/nest-application/sse/e2e/fastify.spec.ts

@@ -4,7 +4,7 @@ import {
 } from '@nestjs/platform-fastify';
 import { Test } from '@nestjs/testing';
 import { expect } from 'chai';
-import * as EventSource from 'eventsource';
+import { EventSource } from 'eventsource';
 import { AppModule } from '../src/app.module';
 
 describe('Sse (Fastify Application)', () => {
@@ -25,7 +25,14 @@ describe('Sse (Fastify Application)', () => {
       const url = await app.getUrl();
 
       eventSource = new EventSource(url + '/sse', {
-        headers: { connection: 'keep-alive' },
+        fetch: (input, init) =>
+          fetch(input, {
+            ...init,
+            headers: {
+              ...init?.headers,
+              connection: 'keep-alive',
+            },
+          }),
       });
     });
 
@@ -64,7 +71,14 @@ describe('Sse (Fastify Application)', () => {
       const url = await app.getUrl();
 
       eventSource = new EventSource(url + '/sse', {
-        headers: { connection: 'keep-alive' },
+        fetch: (input, init) =>
+          fetch(input, {
+            ...init,
+            headers: {
+              ...init?.headers,
+              connection: 'keep-alive',
+            },
+          }),
       });
     });
 

integration/nest-application/sse/src/app.controller.ts

@@ -6,7 +6,7 @@ export class AppController {
   @Sse('sse')
   sse(): Observable<MessageEvent> {
     return interval(1000).pipe(
-      map(_ => ({ data: { hello: 'world' } }) as MessageEvent),
+      map(() => ({ data: { hello: 'world' } }) as MessageEvent),
     );
   }
 }

integration/nest-application/sse/tsconfig.json

@@ -21,8 +21,8 @@
       "@nestjs/microservices/*": ["../../../packages/microservices/*"],
       "@nestjs/websockets": ["../../../packages/websockets"],
       "@nestjs/websockets/*": ["../../../packages/websockets/*"],
-      "@nestjs/testing": ["../../../packages/websockets"],
-      "@nestjs/testing/*": ["../../../packages/websockets/*"],
+      "@nestjs/testing": ["../../../packages/testing"],
+      "@nestjs/testing/*": ["../../../packages/testing/*"],
       "@nestjs/platform-express": ["../../../packages/platform-express"],
       "@nestjs/platform-express/*": ["../../../packages/platform-express/*"],
       "@nestjs/platform-socket.io": ["../../../packages/platform-socket.io"],

integration/repl/e2e/repl.spec.ts

@@ -1,14 +1,14 @@
 import { clc } from '@nestjs/common/utils/cli-colors.util';
 import { repl } from '@nestjs/core';
-import { ReplContext } from '@nestjs/core/repl/repl-context';
 import {
-  HelpReplFn,
+  DebugReplFn,
   GetReplFn,
+  HelpReplFn,
+  MethodsReplFn,
   ResolveReplFn,
   SelectReplFn,
-  DebugReplFn,
-  MethodsReplFn,
 } from '@nestjs/core/repl/native-functions';
+import { ReplContext } from '@nestjs/core/repl/repl-context';
 import { expect } from 'chai';
 import * as sinon from 'sinon';
 import { AppModule } from '../src/app.module';
@@ -34,7 +34,7 @@ describe('REPL', () => {
     server.context;
     let outputText = '';
     sinon.stub(process.stdout, 'write').callsFake(text => {
-      outputText += text;
+      outputText += text as string;
       return true;
     });
     server.emit('line', 'get(UsersService)');
@@ -63,7 +63,7 @@ ${PROMPT}`);
     server.context;
     let outputText = '';
     sinon.stub(process.stdout, 'write').callsFake(text => {
-      outputText += text;
+      outputText += text as string;
       return true;
     });
     server.emit('line', '$(UsersService)');
@@ -92,7 +92,7 @@ ${PROMPT}`);
 
     let outputText = '';
     sinon.stub(process.stdout, 'write').callsFake(text => {
-      outputText += text;
+      outputText += text as string;
       return true;
     });
     server.emit('line', 'debug(UsersModule)');
@@ -115,7 +115,7 @@ ${PROMPT}`,
 
     let outputText = '';
     sinon.stub(process.stdout, 'write').callsFake(text => {
-      outputText += text;
+      outputText += text as string;
       return true;
     });
     server.emit('line', 'methods("UsersRepository")');
@@ -153,7 +153,7 @@ ${PROMPT}`,
       ).fnDefinition;
       let outputText = '';
       sinon.stub(process.stdout, 'write').callsFake(text => {
-        outputText += text;
+        outputText += text as string;
         return true;
       });
 
@@ -172,7 +172,7 @@ ${PROMPT}`);
       ).fnDefinition;
       let outputText = '';
       sinon.stub(process.stdout, 'write').callsFake(text => {
-        outputText += text;
+        outputText += text as string;
         return true;
       });
 
@@ -191,7 +191,7 @@ ${PROMPT}`);
       ).fnDefinition;
       let outputText = '';
       sinon.stub(process.stdout, 'write').callsFake(text => {
-        outputText += text;
+        outputText += text as string;
         return true;
       });
 
@@ -210,7 +210,7 @@ ${PROMPT}`);
       ).fnDefinition;
       let outputText = '';
       sinon.stub(process.stdout, 'write').callsFake(text => {
-        outputText += text;
+        outputText += text as string;
         return true;
       });
 
@@ -229,7 +229,7 @@ ${PROMPT}`);
       ).fnDefinition;
       let outputText = '';
       sinon.stub(process.stdout, 'write').callsFake(text => {
-        outputText += text;
+        outputText += text as string;
         return true;
       });
 
@@ -248,7 +248,7 @@ ${PROMPT}`);
       ).fnDefinition;
       let outputText = '';
       sinon.stub(process.stdout, 'write').callsFake(text => {
-        outputText += text;
+        outputText += text as string;
         return true;
       });
 

integration/repl/tsconfig.json

@@ -10,6 +10,7 @@
     "target": "ES2021",
     "sourceMap": true,
     "allowJs": true,
+    "strictNullChecks": true,
     "outDir": "./dist",
     "paths": {
       "@nestjs/common": ["../../packages/common"],

integration/scopes/e2e/circular-request-scope.spec.ts

@@ -48,19 +48,19 @@ describe('Circular request scope', () => {
       await new Promise(resolve => performHttpCall(resolve));
     });
 
-    it(`should create controller for each request`, async () => {
+    it(`should create controller for each request`, () => {
       expect(HelloController.COUNTER).to.be.eql(3);
     });
 
-    it(`should create service for each request`, async () => {
+    it(`should create service for each request`, () => {
       expect(UsersService.COUNTER).to.be.eql(3);
     });
 
-    it(`should create service for each request`, async () => {
+    it(`should create service for each request`, () => {
       expect(HelloService.COUNTER).to.be.eql(3);
     });
 
-    it(`should create provider for each inquirer`, async () => {
+    it(`should create provider for each inquirer`, () => {
       expect(Meta.COUNTER).to.be.eql(3);
     });
   });

integration/scopes/e2e/circular-transient-scope.spec.ts

@@ -39,7 +39,7 @@ describe('Circular transient scope', () => {
       const performHttpCall = end =>
         request(server)
           .get('/hello')
-          .end((err, res) => {
+          .end(err => {
             if (err) return end(err);
             end();
           });

integration/scopes/e2e/durable-providers.spec.ts

@@ -107,7 +107,7 @@ describe('Durable providers', () => {
         nonDurableService: '2',
       });
     });
-    
+
     it(`should not cache durable providers that throw errors`, async () => {
       let result: request.Response;
 

integration/scopes/e2e/msvc-request-scope.spec.ts

@@ -47,29 +47,29 @@ describe('Request scope (microservices)', () => {
             if (err) return end(err);
             end();
           });
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
     });
 
-    it(`should create controller for each request`, async () => {
+    it(`should create controller for each request`, () => {
       expect(HelloController.COUNTER).to.be.eql(3);
     });
 
-    it(`should create service for each request`, async () => {
+    it(`should create service for each request`, () => {
       expect(UsersService.COUNTER).to.be.eql(3);
     });
 
-    it(`should share static provider across requests`, async () => {
+    it(`should share static provider across requests`, () => {
       expect(Meta.COUNTER).to.be.eql(1);
     });
 
-    it(`should create request scoped interceptor for each request`, async () => {
+    it(`should create request scoped interceptor for each request`, () => {
       expect(Interceptor.COUNTER).to.be.eql(3);
       expect(Interceptor.REQUEST_SCOPED_DATA).to.deep.equal([1, 1, 1]);
     });
 
-    it(`should create request scoped guard for each request`, async () => {
+    it(`should create request scoped guard for each request`, () => {
       expect(Guard.COUNTER).to.be.eql(3);
       expect(Guard.REQUEST_SCOPED_DATA).to.deep.equal([1, 1, 1]);
     });

integration/scopes/e2e/request-modules-scope.spec.ts

@@ -24,16 +24,16 @@ describe('Request scope (modules propagation)', () => {
       const performHttpCall = end =>
         request(server)
           .get('/hello')
-          .end((err, res) => {
+          .end(err => {
             if (err) return end(err);
             end();
           });
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
     });
 
-    it(`should not fail`, async () => {
+    it(`should not fail`, () => {
       expect(RequestChainService.COUNTER).to.be.eql(3);
     });
   });

integration/scopes/e2e/request-scope.spec.ts

@@ -40,38 +40,38 @@ describe('Request scope', () => {
       const performHttpCall = end =>
         request(server)
           .get('/hello')
-          .end((err, res) => {
+          .end(err => {
             if (err) return end(err);
             end();
           });
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
     });
 
-    it(`should create controller for each request`, async () => {
+    it(`should create controller for each request`, () => {
       expect(HelloController.COUNTER).to.be.eql(3);
     });
 
-    it(`should create service for each request`, async () => {
+    it(`should create service for each request`, () => {
       expect(UsersService.COUNTER).to.be.eql(3);
     });
 
-    it(`should share static provider across requests`, async () => {
+    it(`should share static provider across requests`, () => {
       expect(Meta.COUNTER).to.be.eql(1);
     });
 
-    it(`should create request scoped pipe for each request`, async () => {
+    it(`should create request scoped pipe for each request`, () => {
       expect(UserByIdPipe.COUNTER).to.be.eql(3);
       expect(UserByIdPipe.REQUEST_SCOPED_DATA).to.deep.equal([1, 1, 1]);
     });
 
-    it(`should create request scoped interceptor for each request`, async () => {
+    it(`should create request scoped interceptor for each request`, () => {
       expect(Interceptor.COUNTER).to.be.eql(3);
       expect(Interceptor.REQUEST_SCOPED_DATA).to.deep.equal([1, 1, 1]);
     });
 
-    it(`should create request scoped guard for each request`, async () => {
+    it(`should create request scoped guard for each request`, () => {
       expect(Guard.COUNTER).to.be.eql(3);
       expect(Guard.REQUEST_SCOPED_DATA).to.deep.equal([1, 1, 1]);
     });

integration/scopes/e2e/transient-scope.spec.ts

@@ -41,36 +41,36 @@ describe('Transient scope', () => {
       const performHttpCall = end =>
         request(server)
           .get('/hello')
-          .end((err, res) => {
+          .end(err => {
             if (err) return end(err);
             end();
           });
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
-      await new Promise(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
+      await new Promise<any>(resolve => performHttpCall(resolve));
     });
 
-    it(`should create controller for each request`, async () => {
+    it(`should create controller for each request`, () => {
       expect(HelloController.COUNTER).to.be.eql(3);
     });
 
-    it(`should create service for each request`, async () => {
+    it(`should create service for each request`, () => {
       expect(UsersService.COUNTER).to.be.eql(3);
     });
 
-    it(`should create provider for each inquirer`, async () => {
+    it(`should create provider for each inquirer`, () => {
       expect(Meta.COUNTER).to.be.eql(7);
     });
 
-    it(`should create transient pipe for each controller (3 requests, 1 static)`, async () => {
+    it(`should create transient pipe for each controller (3 requests, 1 static)`, () => {
       expect(UserByIdPipe.COUNTER).to.be.eql(4);
     });
 
-    it(`should create transient interceptor for each controller (3 requests, 1 static)`, async () => {
+    it(`should create transient interceptor for each controller (3 requests, 1 static)`, () => {
       expect(Interceptor.COUNTER).to.be.eql(4);
     });
 
-    it(`should create transient guard for each controller (3 requests, 1 static)`, async () => {
+    it(`should create transient guard for each controller (3 requests, 1 static)`, () => {
       expect(Guard.COUNTER).to.be.eql(4);
     });
   });

integration/scopes/src/durable/durable-context-id.strategy.ts

@@ -16,7 +16,7 @@ export class DurableContextIdStrategy implements ContextIdStrategy {
     let tenantSubTreeId: ContextId;
 
     if (tenants.has(tenantId)) {
-      tenantSubTreeId = tenants.get(tenantId);
+      tenantSubTreeId = tenants.get(tenantId)!;
     } else {
       tenantSubTreeId = { id: +tenantId } as ContextId;
       tenants.set(tenantId, tenantSubTreeId);

integration/scopes/src/durable/durable.service.ts

@@ -11,9 +11,7 @@ import { TenantContext } from './durable-context-id.strategy';
 export class DurableService {
   public instanceCounter = 0;
 
-  constructor(
-    @Inject(REQUEST) private readonly requestPayload: TenantContext,
-  ) {
+  constructor(@Inject(REQUEST) private readonly requestPayload: TenantContext) {
     if (requestPayload.forceError) {
       throw new PreconditionFailedException('Forced error');
     }

integration/scopes/src/hello/guards/request-scoped.guard.ts

@@ -10,7 +10,7 @@ import { Observable } from 'rxjs';
 @Injectable({ scope: Scope.REQUEST })
 export class Guard implements CanActivate {
   static COUNTER = 0;
-  static REQUEST_SCOPED_DATA = [];
+  static REQUEST_SCOPED_DATA = [] as number[];
 
   constructor(@Inject('REQUEST_ID') private readonly requestId: number) {
     Guard.COUNTER++;

integration/scopes/src/hello/interceptors/logging.interceptor.ts

@@ -11,7 +11,7 @@ import { Observable } from 'rxjs';
 @Injectable({ scope: Scope.REQUEST })
 export class Interceptor implements NestInterceptor {
   static COUNTER = 0;
-  static REQUEST_SCOPED_DATA = [];
+  static REQUEST_SCOPED_DATA = [] as number[];
 
   constructor(@Inject('REQUEST_ID') private readonly requestId: number) {
     Interceptor.COUNTER++;

integration/scopes/src/hello/users/user-by-id.pipe.ts

@@ -9,7 +9,7 @@ import { UsersService } from './users.service';
 @Injectable()
 export class UserByIdPipe implements PipeTransform<string> {
   static COUNTER = 0;
-  static REQUEST_SCOPED_DATA = [];
+  static REQUEST_SCOPED_DATA = [] as number[];
 
   constructor(
     @Inject('REQUEST_ID') private readonly requestId: number,