examples(@nestjs) babel integration

Author: kamilmysliwiec

examples/09-babel-example/.gitignore

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+# dependencies
+/node_modules
+
+# IDE
+/.idea
+/.awcache
+/.vscode
+
+# misc
+npm-debug.log
+
+# example
+/quick-start
+
+# tests
+/test
+/coverage
+/.nyc_output
+
+# dist
+/dist

examples/09-babel-example/index.js

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+require('babel-core/register');
+require('babel-polyfill');
+require('./src/server');

examples/09-babel-example/jsconfig.json

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+{
+  "compilerOptions": {
+      "target": "ES6",
+      "experimentalDecorators": true
+  },
+  "exclude": [
+      "node_modules"
+  ]
+}

examples/09-babel-example/package.json

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+{
+  "name": "nest-babel-starter",
+  "version": "1.0.0",
+  "description": "Nest Babel starter repository",
+  "license": "MIT",
+  "scripts": {
+    "build": "babel src -d dist",
+    "prestart": "npm run build",
+    "start": "node index.js",
+    "start:prod": "node dist/server.js"
+  },
+  "dependencies": {
+    "@nestjs/common": "^4.0.1",
+    "@nestjs/core": "^4.0.1",
+    "@nestjs/microservices": "^4.0.1",
+    "@nestjs/testing": "^4.0.1",
+    "@nestjs/websockets": "^4.0.1",
+    "body-parser": "^1.17.2",
+    "redis": "^2.7.1",
+    "reflect-metadata": "^0.1.10",
+    "rxjs": "^5.4.3"
+  },
+  "devDependencies": {
+    "babel-cli": "^6.26.0",
+    "babel-core": "^6.26.0",
+    "babel-plugin-transform-decorators-legacy": "^1.3.4",
+    "babel-polyfill": "^6.26.0",
+    "babel-preset-es2015": "^6.24.1",
+    "babel-preset-stage-0": "^6.24.1"
+  }
+}

examples/09-babel-example/src/modules/app.module.js

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+import { Module } from '@nestjs/common';
+import { CatsModule } from './cats/cats.module';
+import { CatsController } from './cats/cats.controller';
+
+@Module({
+    modules: [CatsModule],
+})
+export class ApplicationModule {}

examples/09-babel-example/src/modules/cats/cats.controller.js

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+import {
+  Controller,
+  Get,
+  Post,
+  Body,
+  Bind,
+  Dependencies,
+  ReflectMetadata,
+  Param,
+} from '@nestjs/common';
+import { CatsService } from './cats.service';
+
+@Controller('cats')
+@Dependencies(CatsService)
+export class CatsController {
+  constructor(catsService) {
+    this.catsService = catsService;
+  }
+
+  @Post()
+  @Bind(Body())
+  async create(createCatDto) {
+    this.catsService.create(createCatDto);
+  }
+
+  @Get()
+  async findAll() {
+    return this.catsService.findAll();
+  }
+
+  @Get(':id')
+  @Bind(Param('id'))
+  findOne(id) {
+    // logic
+  }
+}

examples/09-babel-example/src/modules/cats/cats.module.js

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+import { Module } from '@nestjs/common';
+import { CatsController } from './cats.controller';
+import { CatsService } from './cats.service';
+
+@Module({
+  controllers: [CatsController],
+  components: [CatsService],
+})
+export class CatsModule {}

examples/09-babel-example/src/modules/cats/cats.service.js

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+import { Component } from '@nestjs/common';
+import { CatsModule } from './cats.module';
+
+@Component()
+export class CatsService {
+  constructor() {
+    this.cats = [];
+  }
+
+  create(cat) {
+    this.cats.push(cat);
+  }
+
+  findAll() {
+    return this.cats;
+  }
+}

examples/09-babel-example/src/server.js

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+require('babel-core/register');
+require('babel-polyfill');
+
+import * as bodyParser from 'body-parser';
+import { NestFactory } from '@nestjs/core';
+import { ApplicationModule } from './modules/app.module';
+
+async function bootstrap() {
+  const app = await NestFactory.create(ApplicationModule);
+  await app.listen(3000);
+}
+bootstrap();

src/common/utils/decorators/bind.decorator.ts

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+/**
+ * Binds parameters decorators to the method
+ * Useful when the language doesn't provide a 'Parameter Decorators' feature
+ * @param  {} ...decorators
+ */
+export function Bind(...decorators) {
+  return (target: object, key, descriptor) => {
+    decorators.forEach((fn, index) => fn(target, key, index));
+    return descriptor;
+  };
+}