express-polyglot

Install

npm i express-polyglot --save

Usage

• Start by creating a folder in which you write your locales, Eg:

App Folder
|___locales
    |   en.js
    |   ar.js
...

Every file should have module.exports, Eg:

**en.js**:
```javascript
module.exports = {
    hello: 'Hello World'
};
```

2. Now, in your app:

```javascript
var express = require('express');
var polyglot = require('express-polyglot');

var app = express();
```

As you can see, we changed nothing yet. 3. Configure Polyglot: (This is the default configuration)

```javascript
polyglot.configure({
    defaultLang: 'en', // Default language code
    directory: './locales', // Directory of your files
    aliasLangName: 'langName', // The property that will take language code in req (req.langName = 'en')
    aliasTxt: 'strs', // The property that will take language strings in req (req.strs.hello = 'Hello World')
    cookie: 'lang', // The cookie name in which the language code will be stored
    queryParam: 'lang', // The url parameter when switching
});
```
*If you have nothing to change to default values just don't use the method.*

4. Use:

```javascript
app.use(polyglot.load);
```
*Nothing to explain*

5. Switching: Set a route where the language will be switched.

```javascript
app.use('/locale', polyglot.switch);
```
Now to switch you can request *'/locale?lang=ar'*.
> If you changed the queryParam property, use your value instead of 'lang'

This will change the language and the cookie.