-
-
Save thomascayne/7ef5d31a279c76ac221a13856fc3e0c9 to your computer and use it in GitHub Desktop.
Nest Database Module (Type ORM) with environment variables support
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import { Module, Global, DynamicModule } from '@nestjs/common' | |
| import { EnvModule } from './env.module' | |
| import { EnvService } from './env.service' | |
| import { TypeOrmModule } from '@nestjs/typeorm' | |
| function DatabaseOrmModule (): DynamicModule { | |
| const config = new EnvService().read() | |
| return TypeOrmModule.forRoot({ | |
| type: config.DB_TYPE, | |
| host: config.DB_HOST, | |
| port: config.DB_PORT, | |
| username: config.DB_USER, | |
| password: config.DB_PASSWORD, | |
| database: config.DB_NAME, | |
| synchronize: false | |
| }) | |
| } | |
| @Global() | |
| @Module({ | |
| imports: [ | |
| EnvModule, | |
| DatabaseOrmModule() | |
| ] | |
| }) | |
| export class DatabaseModule { } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import { Module, Global } from '@nestjs/common' | |
| import { EnvService } from './env.service' | |
| @Global() | |
| @Module({ | |
| providers: [ | |
| { | |
| provide: EnvService, | |
| useValue: new EnvService() | |
| } | |
| ], | |
| exports: [ EnvService ] | |
| }) | |
| export class EnvModule {} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import * as dotenv from 'dotenv' | |
| import * as fs from 'fs' | |
| export interface EnvData { | |
| // application | |
| APP_ENV: string | |
| APP_DEBUG: boolean | |
| // database | |
| DB_TYPE: 'mysql' | 'mariadb' | |
| DB_HOST?: string | |
| DB_NAME: string | |
| DB_PORT?: number | |
| DB_USER: string | |
| DB_PASSWORD: string | |
| } | |
| export class EnvService { | |
| private vars: EnvData | |
| constructor () { | |
| const environment = process.env.NODE_ENV || 'development' | |
| const data: any = dotenv.parse(fs.readFileSync(`${environment}.env`)) | |
| data.APP_ENV = environment | |
| data.APP_DEBUG = data.APP_DEBUG === 'true' ? true : false | |
| data.DB_PORT = parseInt(data.DB_PORT) | |
| this.vars = data as EnvData | |
| } | |
| read (): EnvData { | |
| return this.vars | |
| } | |
| isDev (): boolean { | |
| return (this.vars.APP_ENV === 'development') | |
| } | |
| isProd (): boolean { | |
| return (this.vars.APP_ENV === 'production') | |
| } | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Environment application template file | |
| APP_DEBUG=false | |
| # Database settings | |
| DB_TYPE=mysql | |
| DB_HOST=127.0.0.1 | |
| DB_NAME=mydb | |
| DB_PORT=3306 | |
| DB_USER=root | |
| DB_PASSWORD=root |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment