Laravel-react-i18n NPM

Demo

Requirements

Laravel >= 9
NodeJS >= 16
Vite

Installation

With npm:

npm i laravel-react-i18n

or with yarn:

yarn add laravel-react-i18n

Setup

CSR (Client Side Rendering)

app.tsx:

import './bootstrap';
import '../css/app.css';

import { createRoot } from 'react-dom/client';
import { createInertiaApp } from '@inertiajs/react';
import { resolvePageComponent } from 'laravel-vite-plugin/inertia-helpers';
import { LaravelReactI18nProvider } from 'laravel-react-i18n';

const appName = window.document.getElementsByTagName('title')[0]?.innerText || 'Laravel';

createInertiaApp({
  title: (title) => `${title} - ${appName}`,
  resolve: (name) => resolvePageComponent(`./Pages/${name}.tsx`, import.meta.glob('./Pages/**/*.tsx')),
  setup({ el, App, props }) {
    const root = createRoot(el);

    root.render(
      <LaravelReactI18nProvider
        locale={'uk'}
        fallbackLocale={'en'}
        files={import.meta.glob('/lang/*.json')}
      >
        <App {...props} />
      </LaravelReactI18nProvider>
    );
  },
  progress: {
    color: '#4B5563',
  },
});

SSR (Server Side Rendering)

ssr.tsx:

import ReactDOMServer from 'react-dom/server';
import { createInertiaApp } from '@inertiajs/react';
import createServer from '@inertiajs/react/server';
import { resolvePageComponent } from 'laravel-vite-plugin/inertia-helpers';
import route from '../../vendor/tightenco/ziggy/dist/index.m';
import { LaravelReactI18nProvider } from 'laravel-react-i18n';

const appName = 'Laravel';

createServer((page) =>
  createInertiaApp({
    page,
    render: ReactDOMServer.renderToString,
    title: (title) => `${title} - ${appName}`,
    resolve: (name) => resolvePageComponent(`./Pages/${name}.tsx`, import.meta.glob('./Pages/**/*.tsx')),
    setup: ({ App, props }) => {
      global.route = (name, params, absolute) =>
        route(name, params, absolute, {
          // @ts-expect-error
          ...page.props.ziggy,
          // @ts-expect-error
          location: new URL(page.props.ziggy.location),
        });

      return (
        <LaravelReactI18nProvider
          locale={'uk'}
          fallbackLocale={'en'}
          files={import.meta.glob('/lang/*.json', { eager: true })}
        >
          <App {...props} />
        </LaravelReactI18nProvider>
      );
    },
  })
);

PHP Translations Available on React

In order to load php translations, you can use this Vite plugin.

vite.config.js:

import i18n from 'laravel-react-i18n/vite'; // <-- add this

export default defineConfig({
    plugins: [
        laravel([
            'resources/css/app.css',
            'resources/js/app.js'
        ]),
        react(),
        i18n(), // <-- add this
    ],
});

During the npm run dev execution time, the plugin will create some files like this php_{lang}.json on your lang folder. And to avoid that to be commited to your code base, I suggest to your .gitignore this like:

lang/php_*.json

Usage

Provider Options

locale (optional): If not provided it will try to find from the <html lang=""> tag or set en.
fallbackLocale (optional): If the locale was not provided or is invalid, it will try reach for this fallbackLocale instead, default it will try to find from the <html lang=""> tag or set en.
files (required): The way to reach your language files.

<LaravelReactI18nProvider
  locale={'ro'}
  files={import.meta.glob('/lang/*.json')}
>
...

Hook Response:

...
import { useLaravelReactI18n } from 'laravel-react-i18n';

export default function Component() {
    const { t, tChoice, currentLocale, setLocale, getLocales, isLocale, loading } = useLaravelReactI18n();
    ...
}

`t(key: string, replacements?: {[key: string]: string | number})`

The t() method can translate a given message.

lang/pt.json:

{
    "Welcome!": "Bem-vindo!",
    "Welcome, :name!": "Bem-vindo, :name!"
}

welcome.tsx:

...
const { t } = useLaravelReactI18n();

t('Welcome!'); // Bem-vindo!
t('Welcome, :name!', { name: 'Francisco' }); // Bem-vindo Francisco!
t('Welcome, :NAME!', { name: 'Francisco' }); // Bem-vindo FRANCISCO!
t('Some untranslated'); // Some untranslated
...

`tChoice(key: string, count: number, replacements?: {[key: string]: string | number})`

The tChoice() method can translate a given message based on a count, there is also available an trans_choice alias, and a mixin called $tChoice().

lang/pt.json:

{
  "There is one apple|There are many apples": "Existe uma maça|Existe muitas maças",
  "{0} There are none|[1,19] There are some|[20,*] There are many": "Não tem|Tem algumas|Tem muitas",
  "{1} :count minute ago|[2,*] :count minutes ago": "{1} há :count minuto|[2,*] há :count minutos",
}

choice.tsx:

...
const { tChoice } = useLaravelReactI18n()

tChoice('There is one apple|There are many apples', 1); // Existe uma maça
tChoice('{0} There are none|[1,19] There are some|[20,*] There are many', 19); // Tem algumas
tChoice('{1} :count minute ago|[2,*] :count minutes ago', 10); // Há 10 minutos.
...

`currentLocale()`

The currentLocale() returns the locale that is currently being used.

const { currentLocale } = useLaravelReactI18n()

currentLocale(); // en

`setLocale(locale: string)`

The setLocale() can be used to change the locale during the runtime.

const { currentLocale, setLocale } = useLaravelReactI18n();

function handler() {
    setLocale('it')
}

return (
    <div>
        <h1>Current locale: `{currentLocale()}`</h1>
        <button onClick={handler}>Change locale to `it`</button>
    </div>
)

`getLocales()`

The getLocales() return string array with all locales available in folder /lang/*.

/lang/..
  de.json
  en.json
  nl.json
  uk.json

myLocales.tsx:

const { getLocales } = useLaravelReactI18n();

getLocales(); // ['de', 'en', 'nl', 'uk']

`isLocale(locale: string)`

The isLocale() method checks the locale is available in folder /lang/*.

const { isLocale } = useLaravelReactI18n();

isLocale('uk'); // true
isLocale('fr'); // false

`loading`

The loading show current loading state, only on client side where you change the locale.

const { loading, currentLocale, setLocale } = useLaravelReactI18n();

function handler() {
    setLocale('it')
}

if (loading) return <p>Loading...</p>;

return (
    <div>
        <h1>Current locale: `{currentLocale()}`</h1>
        <button onClick={handler}>Change locale to `it`</button>
    </div>
)

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