ngx-translate-multi-loader-backup.ts

// backup copy of https://github.com/denniske/ngx-translate-multi-http-loader

import {HttpClient} from "@angular/common/http";
import {TranslateLoader} from "@ngx-translate/core";
import {Observable, forkJoin, of} from "rxjs";
import {catchError, map} from "rxjs/operators";
import merge from 'deepmerge';


export interface ITranslationResource {
  prefix: string;
  suffix: string;
}

export class MultiTranslateHttpLoader implements TranslateLoader {
  constructor(
    private http: HttpClient,
    private resources: ITranslationResource[],
  ) {}

  public getTranslation(lang: string): Observable<any> {
    const requests = this.resources.map(resource => {
      const path = resource.prefix + lang + resource.suffix;
      return this.http.get(path).pipe(catchError(res => {
        console.error("Something went wrong for the following translation file:", path);
        console.error(res.message);
        return of({});
      }));
    });
    return forkJoin(requests).pipe(map(response => merge.all(response)));
  }
}

    
//    export function HttpLoaderFactory(http: HttpClient) {
//  return new MultiTranslateHttpLoader(http, [
//  /* { prefix: "./assets/translate/core/", suffix: ".json" },*/
//    { prefix: "assets/i18n/participation/", suffix: ".json" },
//    { prefix: "assets/i18n/shared/", suffix: ".json" },
//  ]);
// }