ikechukwukalu / food-hut-adonisjs

import { HttpContextContract } from '@ioc:Adonis/Core/HttpContext'

/**

 * The middleware detects the user language using the "Accept-language" HTTP header

 * or the "lang" query string parameter.

 *

 * Feel free to change the middleware implementation to what suits your needs. Just

 * make sure

 *

 * - You always ensure the user selected language is supported by your app.

 * - Only call "switchLocale" when the detected language is valid string value and

 *   not "null" or "undefined"

 */

export default class DetectUserLocale {

  /**

   * Detect user language using "Accept-language" header or

   * the "lang" query string parameter.

   *

   * The user language must be part of the "supportedLocales", otherwise

   * this method should return null.

   */

  protected getUserLanguage(ctx: HttpContextContract) {

    const availableLocales = I18n.supportedLocales()

    return ctx.request.language(availableLocales) || ctx.request.input('lang')

  }

}