You can find some nice example in this project. In short typeorm has a really nice method specific to this usecase findAndCount. async findAll(query): Promise<Paginate> { const take = query.take || 10 const skip = query.skip || 0 const keyword = query.keyword || ” const [result, total] = await this.userRepository.findAndCount( { where: { name: Like(‘%’ … Read more
This is a known bug with an open issue and a merged PR to fix it. For now, you can downgrade to apollo-server-express@^2
Let’s assume we have a very simple service that finds a user entity by id: export class UserService { constructor(@InjectRepository(UserEntity) private userRepository: Repository<UserEntity>) { } async findUser(userId: string): Promise<UserEntity> { return this.userRepository.findOne(userId); } } Then you can mock the UserRepository with the following mock factory (add more methods as needed): // @ts-ignore export const repositoryMockFactory: … Read more
Add @Type(() => AuthParam) to your array and it should be working. Type decorator is required for nested objects(arrays). Your code becomes import { IsArray, ValidateNested, ArrayMinSize, ArrayMaxSize } from ‘class-validator’; import { AuthParam } from ‘./authParam.model’; import { Type } from ‘class-transformer’; export class SignInModel { @IsArray() @ValidateNested({ each: true }) @ArrayMinSize(2) @ArrayMaxSize(2) @Type(() … Read more
Best practice Better than accessing the Logger statically is to create an instance for your class: @Controller() export class AppController { private readonly logger = new Logger(AppController.name); @Get() async get() { this.logger.log(‘Getting stuff’); } } Why is this better? You can provide a context in the constructor like new Logger(AppController.name) so that the class name … Read more
The main difference is that tsc transpile all the file according to your tsconfig. Instead, ts-node will start from the entry file and transpile the file step by step through the tree based on the import/export.
From Nestjs docs here – https://docs.nestjs.com/techniques/configuration These steps worked for me with MySQL and TypeORM. Install Nestjs config module – npm i –save @nestjs/config. It relies on dotenv Create a .env file in your root folder and add your key/value pairs e.g. DATABASE_USER=myusername Open app.module.ts and import the config module import { ConfigModule } from … Read more
Let’s assume your business logic throws an EntityNotFoundError and you want to map it to a NotFoundException. For that, you can create an Interceptor that transforms your errors: @Injectable() export class NotFoundInterceptor implements NestInterceptor { intercept(context: ExecutionContext, next: CallHandler): Observable<any> { // next.handle() is an Observable of the controller’s result value return next.handle() .pipe(catchError(error => … Read more
According to the Nestjs docs: But first (if you use TypeScript), we need to determine the DTO (Data Transfer Object) schema. A DTO is an object that defines how the data will be sent over the network. We could determine the DTO schema by using TypeScript interfaces, or by simple classes. Interestingly, we recommend using … Read more
Query parameters You have to remove :params for it to work as expected: @Get(‘findByFilter’) async findByFilter(@Query() query): Promise<Article[]> { // … } Path parameters The :param syntax is for path parameters and matches any string on a path: @Get(‘products/:id’) getProduct(@Param(‘id’) id) { matches the routes localhost:3000/products/1 localhost:3000/products/2abc // … Route wildcards To match multiple endpoints … Read more