Symfony Messenger & API Platform integration

Using a message bus like Symfony Messenger is a wonderful way of structuring your application around commands or queries (which will just be PHP classes). API Platform is a great framework to expose APIs.

The point of this bridge is to enable you to build business actions-centric APIs instead of CRUD APIs. Check this very simple example.

Note: This is still an experimentation. You will likely have to contribute to make it fit your needs. Looking forward to review your pull-requests!

Usage

1. Get an API Platform application. Easiest is to use Symfony's api pack:

   composer create-project symfony/skeleton api-platform-and-messenger && \
   cd api-platform-and-messenger && \
   composer req api

2. Install this bridge

   composer req sroze/api-platform-messenger:dev-master

3. Configure your message(s) to be handled by API Platform like in the following example:

   <?php
   
   namespace App\Message;
   
   use Sam\ApiPlatform\Messenger\Annotation\ApiMessage;
   use Symfony\Component\Validator\Constraints\NotBlank;
   
   /**
    * @ApiMessage(
    *   path="/write-message",
    *   type="command"
    * )
    */
   class WriteMessage
   {
       /**
        * @NotBlank
        *
        * @var string
        */
       public $message;
   }

Reference

@ApiMessage annotation

• path. The URL path where your command will be exposed.
• type. The type of message. Can be:
  • query: Will be exposed via a GET method
  • command: Will be exposed via a POST method