backend layer for i18next to chain backends

Usage no npm install needed!

<script type="module">
  import i18nextChainedBackend from 'https://cdn.skypack.dev/i18next-chained-backend';



Travis Coveralls npm version David

This is a i18next backend to chain multiple other backends and caches. So you can define an additional caching backend or fallback backends.

Getting started

Source can be loaded via npm or downloaded from this repo.

# npm package
$ npm install i18next-chained-backend

Wiring up:

import i18next from 'i18next';
import Backend from 'i18next-chained-backend';

  • As with all modules you can either pass the constructor function (class) to the i18next.use or a concrete instance.
  • If you don't use a module loader it will be added to window.i18nextChainedBackend

Backend Options

  // array of existing i18next backends from https://www.i18next.com/plugins-and-utils.html#backends
  backends: [],

  // array of options in order of backends above
  backendOptions: []

Options can be passed in:

preferred - by setting options.backend in i18next.init:

import i18next from 'i18next';
import Backend from 'i18next-chained-backend';

    backend: options

on construction:

  import Backend from 'i18next-chained-backend';
  const Backend = new Backend(null, options);

via calling init:

  import Backend from 'i18next-chained-backend';
  const Backend = new Backend();
  Backend.init(null, options);

more complete sample

import i18next from 'i18next';
import Backend from 'i18next-chained-backend';
import Locize from 'i18next-locize-backend'; // load from service
import HttpApi from 'i18next-http-backend'; // have a own http fallback

    backend: {
      backends: [
        Locize,  // primary
        HttpApi  // fallback
      backendOptions: [{
        projectId: 'myLocizeProjectId'
      }, {
        loadPath: '/locales/{{lng}}/{{ns}}.json' // http api load path for my own fallback


To prevent TypeScript errors/conflicts with other plugins, we recommend placing i18next-chained-backend import above other plugins. Also, make sure to set skipLibCheck to true under your tsconfig file.

import i18next from 'i18next';
import Backend from 'i18next-chained-backend'; // i18next-chained-backend should be placed here
import Locize from 'i18next-locize-backend';
import HttpApi from 'i18next-http-backend';

IMPORTANT ADVICE for the usage in combination with saveMissing/updateMissing

We suggest not to use mutliple backends in combination with saveMissing or updateMissing, because it may happen, that the trigger for this is based on stale data.

Gold Sponsors

localization as a service - locize.com

Needing a translation management? Want to edit your translations with an InContext Editor? Use the orginal provided to you by the maintainers of i18next!


With using locize you directly support the future of i18next and react-i18next.