expressjsHow can I set up localization in Express.js?

Localization in Express.js is a way of setting up different language versions of your website. It can be done by using the accept-language module. Here is an example of setting up localization in Express.js:

// Set up Express.js
const express = require('express');
const app = express();

// Set up the accept-language module
const acceptLanguage = require('accept-language');

// Set up the language versions
acceptLanguage.languages(['en-US', 'es-ES']);

// Set the language on the request
app.use(acceptLanguage.setLocaleFromQuery());

// Use the language in your routes
app.get('/', (req, res) => {
  res.send(`The language is ${req.locale}`);
});

Output example

The language is en-US

The code above sets up localization in Express.js by:

1. Requiring the express and accept-language modules.
2. Setting up the language versions with acceptLanguage.languages().
3. Setting the language on the request with acceptLanguage.setLocaleFromQuery().
4. Using the language in your routes.

Helpful links

• accept-language npm package
• Express.js documentation

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