Extension developer - first read

If you are or want to become a Flarum extension developer, you might want to read up on the several resources and tutorials related to Extension development:

• Building extensions documentation
• Extension development composer
• Mithril js documentation
• ES6 cheatsheet
• Laravel API Docs
• Clark Winkelmanns' developer streams on YouTube
• Flarum API Docs Archive (Community Run)
• Developers explaining their workflow for extension development
• Extension namespace tips
• Flarum stack explained
• Flarum Blank Extension Generator

Getting help

• Join us on #extend in our discord chat
• Otherwise, post a thread in the dev tag

How to debug

• Enable debug (set to true in config.php).
• Check that your extension is loaded in the page, for instance my hyn/flarum-analytics package can be found in the source when looking for System.get('hyn/analytics/main') which refers to the namespacing defined in the Gulpfile.js of your forum or admin javascript.
• If your extension is loaded. See if it actually runs, use console.log('hello there'); to see whether the code is running. The message will be shown under the console in your browser.

Suggestions? Let us know.