transloco-loader.ts

@Injectable({ providedIn: 'root' })
export class HttpLoader implements TranslocoLoader {
  
  contructor(private http: HttpClient) {}
  
  getTranslation(lang: string, { scope }) {
    const base = this.http.get(`/assets/i18n/${lang}.json`);
    if(scope) {
      return base;
    }
    return forkJoin([
      base,
      this.http.get(`/assets/i18n/${lang}.vendor.json`)
    ]).pipe(
      map(([translation, vendor]) => {
        return { ...translation, ...vendor }
      })
    )
  }
}


export const httpLoader = { 
  provide: TRANSLOCO_LOADER,
  useClass: HttpLoader 
};