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Tolerim
2 hours ago

What is the process for altering the language in remix-i18next?

Currently, I'm working with Remix and remix-i18next to implement a language changer button. However, I'm unsure about the procedure to follow. I'm aware that useChangeLanguage hook is used to change language, and the locale can be obtained from the request in the loader. Here's the code snippet:

import { useChangeLanguage } from "remix-i18next";
import { useTranslation } from "react-i18next";
import i18next from "~/i18next.server";

export async function loader({ request }: LoaderArgs) {
  let locale = await i18next.getLocale(request);
  return json({ locale });
}

export let handle = {
  i18n: "common",
};

export default function Root() {
  let { locale } = useLoaderData<typeof loader>();

  let { i18n } = useTranslation();

  useChangeLanguage(locale);

  return (
    <html lang={locale} dir={i18n.dir()}>
      <head>
        <Meta />
        <Links />
      </head>
      <body>
        <Outlet />
        <ScrollRestoration />
        <Scripts />
        <LiveReload />
      </body>
    </html>
  );
}
However, my requirement is to have the flexibility of changing languages without relying on the request's defined language. So, I want to allow the user to set the language preference. The request's language should be considered only if the user hasn't defined any preference.

Answers(1)
avatar
Tolerim
2 hours ago
Verified Answer
To create a button to change the language in the page using Remix and remix-i18next, you can define a function to handle the language change event. This function can use the hook useChangeLanguage to change the language to the desired one. Here's an example of how you can create a button to change the language: 
import { useTranslation, useChangeLanguage } from "remix-i18next";

export default function LanguageSwitcher() {
  const { t } = useTranslation();
  const changeLanguage = useChangeLanguage();

  const handleLanguageClick = (event) => {
    const lang = event.target.value;
    changeLanguage(lang);
  };

  return (
    <div>
      <button onClick={handleLanguageClick} value="en">
        {t("english")}
      </button>
      <button onClick={handleLanguageClick} value="es">
        {t("spanish")}
      </button>
    </div>
  );
}
In this example, we define a function handleLanguageClick to handle the click event on the language buttons. This function uses the useChangeLanguage hook to change the language to the selected one. The language buttons are defined with a value attribute that represents the language code and a click event handler that calls handleLanguageClick. The t function from useTranslation is used to translate the button labels. Note that in the loader function, you can check if the user has defined a language preference and set it as the default language using the i18next.changeLanguage function. For example: 
export async function loader({ request }: LoaderArgs) {
  let locale = await i18next.getLocale(request);

  // Check if user defined a language preference
  const langParam = new URL(request.url).searchParams.get("lang");
  if (langParam) {
    i18next.changeLanguage(langParam);
    locale = langParam;
  }

  return json({ locale });
}
In this example, we use the URL object to parse the request URL and get the lang parameter if it exists. If the parameter exists, we use the i18next.changeLanguage function to set the language to the selected one and update the locale variable.
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