In this tutorial, we dive into decoding JSON request content directly within Symfony forms, making it reusable and decoupled from the controller. We'll walk through the process of setting up Symfony, creating a form, and using a custom event subscriber to decode JSON content before submission. Along the way, we ensure our solution is reusable, maintaining clean code with unit tests for validation. By the end, you’ll know how to implement a flexible form system that can handle JSON payloads seamlessly.
00:00 Introduction
00:50 Setup and WebTestCase
01:42 Create Symfony form
02:27 Extract into ProfileType
03:13 Create EventSubscriber
04:14 Create JsonDecodeType
04:58 Summary