Translator

package.json

@@ -27,6 +27,7 @@
     "@angular/router": "~8.0.0",
     "@nguniversal/express-engine": "^7.0.2",
     "@nguniversal/module-map-ngfactory-loader": "^7.0.2",
+    "@ngx-translate/core": "^11.0.1",
     "babel-preset-es2015": "^6.24.1",
     "body-parser": "^1.19.0",
     "class-transformer": "^0.2.3",
@@ -38,10 +39,12 @@
     "helmet": "^3.18.0",
     "moment": "^2.24.0",
     "morgan": "^1.9.1",
+    "ngx-cookie-service": "^2.2.0",
     "pg": "^7.11.0",
     "pg-native": "^3.0.0",
     "plotly.js": "^1.48.3",
     "rxjs": "~6.4.0",
+    "socket.io-client": "^2.2.0",
     "swagger-jsdoc": "^3.2.9",
     "tslib": "^1.9.0",
     "typeorm": "^0.2.18",

server/controllers/BlockchainKernel.ts

@@ -110,6 +110,29 @@ export class BlockchainKernelController {
       this.TransactionFee,
     );
 
+    /**
+     * @swagger
+     * /epic_explorer/v1/translator:
+     *   get:
+     *     tags:
+     *       - name: Translator | Translator CONTROLLER
+     *     summary: create a translator
+     *     description: create a translator
+     *     consumes:
+     *       - application/json
+     *     produces:
+     *       - application/json
+     *     parameters:
+     *       - name: lang
+     *     responses:
+     *       200:
+     *         description: Transaction fee chart fetched successfully
+     */
+    this.router.get(
+      `${this.path}/translator`,
+      this.Translator,
+    );
+
     /**
      * @swagger
      * /epic_explorer/v1/blockchain_kernel/transactionheatmap:
@@ -425,6 +448,32 @@ export class BlockchainKernelController {
     }
   };
   
+
+  private Translator = async (
+    request: Request,
+    response: Response,
+    next: NextFunction,
+  ) => {
+    try {
+      const lang = request.querylang;
+      
+      response.status(200).json({
+        status: 200,
+        timestamp: Date.now(),
+        message: 'Transaction fee chart fetched successfully',
+        response: {
+          lang: lang
+        },
+      });
+
+       // res.header("Content-Type",'application/json');
+       // res.sendFile(path.join(__dirname + '/../i18n/'+req.query.lang+'.json'));
+      
+    } catch (error) {
+      next(new InternalServerErrorException(error));
+    }
+  };
+
   private TransactionFee = async (
     request: Request,
     response: Response,

src/app/app.component.ts

@@ -1,4 +1,6 @@
 import { Component } from '@angular/core';
+import { CookieService } from 'ngx-cookie-service';
+import { TransServiceService } from './shared/services/trans-service.service';
 
 @Component({
   selector: 'app-root',
@@ -7,4 +9,5 @@ import { Component } from '@angular/core';
 })
 export class AppComponent {
   title = 'explorer2-epic';
+  constructor(private _cookieService: CookieService,public translate: TransServiceService){}
 }

src/app/app.module.ts

@@ -3,9 +3,33 @@ import { NgModule } from '@angular/core';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { AppRoutingModule } from './app-routing.module';
 import { AppComponent } from './app.component';
-import { HttpClientModule } from '@angular/common/http';
-
+import { HttpClientModule, HttpClient } from '@angular/common/http';
+import { CookieService } from 'ngx-cookie-service';
+import {TranslateModule, TranslateLoader} from '@ngx-translate/core';
+import { TransServiceService } from './shared/services/trans-service.service';
 import { NotFoundComponent } from './view/home/not-found/not-found.component';
+import { Observable, of } from 'rxjs';
+import { map, catchError } from 'rxjs/operators';
+
+export class CustomLoader implements TranslateLoader {
+  apiHost: string;
+  
+  constructor(private http: HttpClient ) {
+  }
+  
+  public getTranslation(lang: String): Observable<any> {
+    
+    return this.http.get(this.apiHost+'/Translation?lang='+lang).pipe(
+      map((res: any) => {
+        console.log("Data got: ");
+        console.log(res);
+        return res;
+      })
+    );
+    
+  }
+}
+
 @NgModule({
   declarations: [
     AppComponent,NotFoundComponent
@@ -16,8 +40,16 @@ import { NotFoundComponent } from './view/home/not-found/not-found.component';
     AppRoutingModule,
     BrowserAnimationsModule,
     
+    TranslateModule.forRoot({
+      loader: {
+          provide: TranslateLoader,
+          useClass: CustomLoader,
+          // useFactory: HttpLoaderFactory,
+          deps: [HttpClient]
+      }
+    })
   ],
-  providers: [],
+  providers: [TransServiceService,CookieService],
   bootstrap: [AppComponent]
 })
 export class AppModule { }

src/app/shared/services/trans-service.service.ts

@@ -0,0 +1,42 @@
+import { Injectable } from '@angular/core';
+import {TranslateService} from '@ngx-translate/core';
+import { CookieService } from 'ngx-cookie-service';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class TransServiceService{
+  public langLabel: any = {};
+
+  constructor(public translate : TranslateService,private cookie: CookieService) { 
+    translate.addLangs(['en', 'es']);
+    translate.setDefaultLang('en');
+    this.langLabel = {en: 'English', es: 'Spanish'};
+    // console.log('this.getCookie() ifconf',this.getCookie() != 'undefined' ? 1: 2);
+    console.log("(this.getCookie() && this.getCookie() != null) ? this.getCookie() : (this.getCurrentLang() && this.getCurrentLang() != null) ? this.getCurrentLang() : 'en'",(this.getCookie() && this.getCookie() != 'undefined') ? this.getCookie() : (this.getCurrentLang() && this.getCurrentLang() != 'undefined') ? this.getCurrentLang() : 'en');
+    translate.use((this.getCookie() && this.getCookie() != 'undefined') ? this.getCookie() : (this.getCurrentLang() && this.getCurrentLang() != 'undefined') ? this.getCurrentLang() : 'en');
+    
+    this.setCookie(this.getCurrentLang());
+  }
+
+  public getLanguage(){
+    return this.translate.getLangs();
+  }
+
+  public getCurrentLang(){
+    return this.translate.currentLang;
+  }
+
+  public changeLang(langSelect){
+    this.translate.use(langSelect);
+    this.setCookie(langSelect);
+  }
+
+  public setCookie(lang){
+    this.cookie.set('Lang',lang);
+  }
+
+  public getCookie(){
+    return this.cookie.get('Lang');
+  }
+}