add multi language

Author: daniwebdev

nest-cli.json

@@ -6,7 +6,15 @@
     "deleteOutDir": true,
     "watchAssets": true,
     "assets": [
-      "src/service-account.json"
+      {
+        "include": "service-account.json",
+        "watchAssets": true
+      },
+      {
+        "include": "i18n/**/*",
+        "watchAssets": true,
+        "outDir": "dist"
+      }
     ]
   }
 }

package.json

@@ -39,6 +39,7 @@
     "ejs": "^3.1.8",
     "ioredis": "^5.3.2",
     "jsonwebtoken": "^9.0.1",
+    "nestjs-i18n": "^10.2.6",
     "passport": "^0.6.0",
     "passport-jwt": "^4.0.1",
     "pg": "^8.11.1",

public/openapi.yml

@@ -103,6 +103,7 @@ paths:
       parameters:
         - $ref: "#/components/parameters/AppVersionParameter"
         - $ref: "#/components/parameters/AppPlatformParameter"
+        - $ref: "#/components/parameters/AppLangParameter"
       tags:
         - "Authentication"
       description: |
@@ -228,6 +229,13 @@ components:
       example: "Android"
       schema:
         type: string
+    AppLangParameter:
+      name: 'X-APP-LANG'
+      in: header
+      required: true
+      example: "en"
+      schema:
+        type: string
   securitySchemes:
     ApiKey:
       type: apiKey

src/apps/app.module.ts

@@ -7,12 +7,25 @@ import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { AuthModule } from './auth/auth.module';
 import { FileModule } from './file/file.module';
-
+import { I18nModule, QueryResolver, HeaderResolver, AcceptLanguageResolver } from 'nestjs-i18n'
+import { join } from 'path';
 @Module({
   imports: [
     ConfigModule.forRoot({
       isGlobal: true
     }),
+    I18nModule.forRoot({
+      fallbackLanguage: 'en',
+      loaderOptions: {
+        path: join(__dirname, '..', 'i18n'),
+        watch: true,
+      },
+      resolvers: [
+        new QueryResolver(["lang", "l"]),
+        new HeaderResolver(["x-app-lang"]),
+        AcceptLanguageResolver,
+      ]
+    }),
     TypeOrmModule.forRootAsync(defaultTypeOrmConfig),
     JwtModule.registerAsync({
       global: true,

src/apps/auth/auth.controller.ts

@@ -5,6 +5,7 @@ import { Response } from 'src/utils/response.utils';
 import { AuthService } from './auth.service';
 import { LoginDTO } from './dto/login.dto';
 import { RegisterDTO } from './dto/register.dto';
+import { I18n, I18nContext } from 'nestjs-i18n';
 
 @Controller('auth')
 export class AuthController {
@@ -16,13 +17,14 @@ export class AuthController {
     @Post('/login')
     @HttpCode(HttpStatus.OK)
     async login(
+        @I18n() i18n: I18nContext,
         @Req() req: Request,
         @Body() data: LoginDTO
     ) {
         const loginResponse = await this.authService.login(data);
 
         return Response.success({
-            message: "Your identity accepted, login successful.",
+            message: i18n.t('response.login.success'),
             data: loginResponse,
         });
     }

src/apps/file/file.controller.ts

@@ -1,6 +1,7 @@
 import { Body, Controller, Post, UploadedFile, UseInterceptors } from '@nestjs/common';
 import { FileInterceptor } from '@nestjs/platform-express';
 import { Express } from 'express';
+import { UseJwtGuard } from 'src/filters/jwt.guard';
 import { FileService } from './file.service';
 
 @Controller('file')

src/i18n/en/response.json

@@ -0,0 +1,5 @@
+{
+    "login": {
+        "success": "Your identity accepted, login successful."
+    }
+}

src/i18n/id/response.json

@@ -0,0 +1,5 @@
+{
+    "login": {
+        "success": "Login berhasil"
+    }
+}

yarn.lock

@@ -1537,6 +1537,11 @@ abort-controller@^3.0.0:
   dependencies:
     event-target-shim "^5.0.0"
 
+accept-language-parser@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/accept-language-parser/-/accept-language-parser-1.5.0.tgz#8877c54040a8dcb59e0a07d9c1fde42298334791"
+  integrity sha512-QhyTbMLYo0BBGg1aWbeMG4ekWtds/31BrEU+DONOg/7ax23vxpL03Pb7/zBmha2v7vdD3AyzZVWBVGEZxKOXWw==
+
 accepts@~1.3.8:
   version "1.3.8"
   resolved "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz"
@@ -2398,7 +2403,7 @@ [email protected]:
   resolved "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz"
   integrity sha512-QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ==
 
-[email protected]:
+[email protected], cookie@^0.5.0:
   version "0.5.0"
   resolved "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz"
   integrity sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw==
@@ -4128,7 +4133,7 @@ istanbul-reports@^3.1.3:
     html-escaper "^2.0.0"
     istanbul-lib-report "^3.0.0"
 
-[email protected]:
+[email protected], iterare@^1.2.1:
   version "1.2.1"
   resolved "https://registry.npmjs.org/iterare/-/iterare-1.2.1.tgz"
   integrity sha512-RKYVTCjAnRthyJes037NX/IiqeidgN1xc3j1RjFfECFp28A1GVwK9nA+i0rJPaHqSZwygLzRnFlzUuHFoWWy+Q==
@@ -5468,6 +5473,18 @@ neo-async@^2.6.0, neo-async@^2.6.2:
   resolved "https://registry.npmjs.org/neo-async/-/neo-async-2.6.2.tgz"
   integrity sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==
 
+nestjs-i18n@^10.2.6:
+  version "10.2.6"
+  resolved "https://registry.yarnpkg.com/nestjs-i18n/-/nestjs-i18n-10.2.6.tgz#ea15e863731036ddd5f4eb5068c56dab1355ebdc"
+  integrity sha512-vWjOXNz3ohJcKybtgdCWruNqreNOkVGfbTzGFxxdZ6Y9VfVJERT2+/30KAcBwJTpjuStoTVhMpILAKkXMk8KLQ==
+  dependencies:
+    accept-language-parser "^1.5.0"
+    chokidar "^3.5.3"
+    cookie "^0.5.0"
+    iterare "^1.2.1"
+    js-yaml "^4.1.0"
+    string-format "^2.0.0"
+
 netmask@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/netmask/-/netmask-2.0.2.tgz#8b01a07644065d536383835823bc52004ebac5e7"
@@ -6778,6 +6795,11 @@ streamsearch@^1.1.0:
   resolved "https://registry.npmjs.org/streamsearch/-/streamsearch-1.1.0.tgz"
   integrity sha512-Mcc5wHehp9aXz1ax6bZUyY5afg9u2rv5cqQI3mRrYkGC8rW2hM02jWuwjtL++LS5qinSyhj2QfLyNsuc+VsExg==
 
+string-format@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/string-format/-/string-format-2.0.0.tgz#f2df2e7097440d3b65de31b6d40d54c96eaffb9b"
+  integrity sha512-bbEs3scLeYNXLecRRuk6uJxdXUSj6le/8rNPHChIJTn2V79aXVTR1EH2OH5zLKKoz0V02fOUKZZcw01pLUShZA==
+
 string-length@^4.0.1:
   version "4.0.2"
   resolved "https://registry.npmjs.org/string-length/-/string-length-4.0.2.tgz"