How can I show the plugin in language preference of the user?

You can create a plugin in Visual Builder that supports multiple languages. Multilanguage is natively supported in Visual Builder, which lets you build and maintain a single plugin for users speaking different languages. For more information, see Create a Multilanguage Application in Oracle Visual Builder: Create a Language Switcher.

1. Add the ofsConnector.js and ofsInitConnector.js files into your plugin as described in the Build Your Application Using Oracle Visual Builder Studio section.
2. Add the following code to the ofsInitConnector file to apply a new language to the plugin:

   setUserLocale(user)
   {
         const currentLocale = window.localStorage.getItem('ofs_plugin_locale');
    
         const locale = user.locale || user.languageCode || window.navigator.language;
    
         if (currentLocale !== locale) {
           window.localStorage.setItem('ofs_plugin_locale', locale);
           window.location.href = this.getPluginUrl();
         }
    
       }

   You can send the locale field through the Plugin API in the init message; the field belongs to the user collection. You can use it to apply the language selected in the Oracle Fusion Field Service UI to the plugin. This code snippet shows the locale field in the init message:

   {
   ...,
   "user": {       
               "languageCode": "en",       
               "locale": "en-US"   
           }
   }