Whenever any information needs to be saved or processed by the server, you can perform your server-side logic inline in the event handler (e.g. update the datab

Whenever any information needs to be saved or processed by the server, you can perform your server-side logic inline in the event handler (e.g. update the database, contact external services, etc.). There's no need to make an AJAX request and have a corresponding API route. This abstracts away the client-server interface, and you get safety guarantees with type-checking.