Aplicando configurações de environment

.editorconfig

@@ -5,7 +5,7 @@ root = true
 
 [*]
 indent_style = space
-indent_size = 4
+indent_size = 2
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true

environment/.env

@@ -0,0 +1,2 @@
+PORT=
+NODE_ENV=

environment/.env.development

@@ -0,0 +1,2 @@
+PORT=3000
+NODE_ENV=development

environment/.env.test

@@ -0,0 +1,2 @@
+PORT=3000
+NODE_ENV=test

nest-cli.json

@@ -3,6 +3,12 @@
   "collection": "@nestjs/schematics",
   "sourceRoot": "src",
   "compilerOptions": {
-    "deleteOutDir": true
+    "deleteOutDir": true,
+    "assets": [
+      {
+        "include": "../environment/.env*",
+        "outDir": "./dist/environment"
+      }
+    ]
   }
 }

package.json

@@ -9,7 +9,7 @@
         "build": "nest build",
         "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
         "start": "nest start",
-        "start:dev": "nest start --watch",
+        "start:dev": "NODE_ENV=development nest start --watch",
         "start:debug": "nest start --debug --watch",
         "start:prod": "node dist/main",
         "lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",

src/app.module.ts

@@ -4,8 +4,8 @@ import { AppService } from './app.service'
 import { EnvConfigModule } from './shared/infrastructure/env-config/env-config.module'
 
 @Module({
-    imports: [EnvConfigModule],
-    controllers: [AppController],
-    providers: [AppService],
+  imports: [EnvConfigModule.forRoot()],
+  controllers: [AppController],
+  providers: [AppService],
 })
 export class AppModule {}

src/shared/infrastructure/env-config/__tests__/unit/env-config.service.spec.ts

@@ -0,0 +1,28 @@
+import { Test, TestingModule } from '@nestjs/testing'
+import { EnvConfigService } from '../../env-config.service'
+import { EnvConfigModule } from '../../env-config.module'
+
+describe('EnvConfigService', () => {
+  let sut: EnvConfigService
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [EnvConfigModule.forRoot()],
+      providers: [EnvConfigService],
+    }).compile()
+
+    sut = module.get<EnvConfigService>(EnvConfigService)
+  })
+
+  it('should be defined', () => {
+    expect(sut).toBeDefined()
+  })
+
+  it('deve retornar a variavel PORT', () => {
+    expect(sut.getAppPort()).toBe(3000)
+  })
+
+  it('deve retornar a variavel NODE_ENV', () => {
+    expect(sut.getNodeEnv()).toBe('test')
+  })
+})

src/shared/infrastructure/env-config/env-config.module.ts

@@ -1,7 +1,20 @@
-import { Module } from '@nestjs/common';
-import { EnvConfigService } from './env-config.service';
+import { DynamicModule, Module } from '@nestjs/common'
+import { EnvConfigService } from './env-config.service'
+import { ConfigModule, ConfigModuleOptions } from '@nestjs/config'
+import { join } from 'node:path'
 
 @Module({
-  providers: [EnvConfigService]
+  providers: [EnvConfigService],
+  exports: [EnvConfigService],
 })
-export class EnvConfigModule {}
+export class EnvConfigModule extends ConfigModule {
+  static forRoot(options: ConfigModuleOptions = {}): DynamicModule {
+    return super.forRoot({
+      ...options,
+      envFilePath: [
+        // join(__dirname, `../../../../environment/.env`),
+        join(__dirname, `../../../../environment/.env.${process.env.NODE_ENV}`),
+      ],
+    })
+  }
+}