In this article, we can try to Define the AdonisJS Internationalization and Localization Module, How to Manage the Internationalization and Localization module of AdonisJS, Config Internationalization, and Localization module, configure Internationalization and Localization and Usage.
Internationalization and Localization
This @adonisjs/i18n official package adds support for internationalization and localization to your own AdonisJS applications or projects.
Internationalization helpers allow to you perform language-sensitive formatting of specific values such as currency, date, and name.
The localization layer allows you to store translations and reference them within the validation errors, auth exceptions, Edge templates, and so on.
Here the I18n package must be configured and installed separately.
Install
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npm i @adonisjs/i18n
Configure
node ace configure @adonisjs/i18n
# CREATE: app/Middleware/DetectUserLocale.ts
# CREATE: ./resources/lang
# CREATE: config/i18n.ts
# UPDATE: .adonisrc.json { providers += "@adonisjs/i18n" }
Usage
Below is a basic example of importing the installed package and formatting values for applications.
import I18n from '@ioc:Adonis/Addons/I18n'
I18n.locale('en-US').formatDate(new Date())
// 10/8/2021
I18n.locale('fr').formatCurrency(100, { currency: 'EUR' })
// 100,00 €
const luxonDate = DateTime.local().minus({ minutes: 10 })
I18n.locale('pt').formatRelativeTime(luxonDate, 'auto')
// há 10 minutos
So, here you can make use of the formatMessage method to format stored translations, and the method we can accept is the message key as the first argument and the data as the second argument.
import I18n from '@ioc:Adonis/Addons/I18n'
I18n
.locale('en-US')
.formatMessage('messages.greeting', { name: 'Virk' })
Usage during HTTP requests
Therefore, it is recommended to use the ctx.i18n object during the HTTP requests and isolated instances of I18n class for the current request.
Route.get('/', async ({ i18n }) => {
return i18n.formatCurrency(100, { currency: 'EUR' })
})
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Config
Here the configuration is stored inside the config/i18n.ts file. So, you can always find the up-to-date config stub on GitHub.
import Application from '@ioc:Adonis/Core/Application'
import { I18nConfig } from '@ioc:Adonis/Addons/I18n'
const i18nConfig: I18nConfig = {
translationsFormat: 'icu',
defaultLocale: 'en',
// Optional
supportedLocales: [],
fallbackLocales: {},
provideValidatorMessages: true,
loaders: {
fs: {
enabled: true,
location: Application.resourcesPath('lang'),
},
},
}
export default i18nConfig
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