[Nest.js] 1 - Basic Structure

Content
1. Structure

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1. Structure

initial files

• src : consist of business logics
  • main.ts : create application and run
    

    import { NestFactory } from '@nestjs/core';
    import { AppModule } from './app.module';
    
    async function bootstrap() {
      const app = await NestFactory.create(AppModule); // AppModule is Root 
      await app.listen(3000);
    }
    
    bootstrap();​

  • app.module.ts : define app module, it roles as a root module which combines other modules.
    

    import { Module } from '@nestjs/common';
    import { AppController } from './app.controller';
    import { AppService } from './app.service';
    
    @Module({
      imports: [],
      controllers: [AppController],
      providers: [AppService],
    })
    export class AppModule {}​

  • XXX.spec.ts : codes for unit-test
• test : consist of end to end test files
  • XXX.e2e-spec.ts : codes for e2e test
• eslintrc.js : a library which helps developers have regulations to write codes
                     , a guideline of typescript, and a inspector for syntax errors
• prettierrc : formatter for ' or " and indentation.
• nest-cli.json : settings of a project, such as sourceRoot
• tsconfig.json : settings how typescripts complie
• ts.config.build.json : extension of tsconfig.json, settings for build, such as excludes not essential files
• package.json : shows cli keywords, package's version