Create an API Resource in API Platform

1. Generate an entity and mark it as an API resource

If you haven’t already, install the maker bundle with symfony composer req maker.

Generate an entity:

./bin/console make:entity

Give it a name (e.g., CheeseListing).

When asked, choose to mark the class an API Platform resource.

This will create a src/Entity/CheeseListing.php file that looks something like:

<?php

namespace App\Entity;

use ApiPlatform\Core\Annotation\ApiResource;
use App\Repository\CheeseListingRepository;
use Doctrine\ORM\Mapping as ORM;

#[ORM\Entity(repositoryClass: CheeseListingRepository::class)]
#[ApiResource]
class CheeseListing
{
    #[ORM\Id]
    #[ORM\GeneratedValue]
    #[ORM\Column(type: 'integer')]
    private $id;

    public function getId(): ?int
    {
        return $this->id;
    }
}

Marking the entity as an ApiResource adds the #[ApiResource] annotation.

2. Generate and run migration

Generate migration:

./bin/console make:migration

Check generated migration to ensure it’s what you want and then run:

./bin/console doc:mig:mig

3. Browse Swagger docs for new resource

Visit /api and you should see the endpoints for your new resource:

You can also view the routes for the resource with:

./bin/console debug:router

Example output:

 ------------------------------------- -------- -------- ------ ------------------------------------- 
  Name                                  Method   Scheme   Host   Path                                 
 ------------------------------------- -------- -------- ------ ------------------------------------- 
  api_entrypoint                        ANY      ANY      ANY    /api/{index}.{_format}               
  api_doc                               ANY      ANY      ANY    /api/docs.{_format}                  
  api_jsonld_context                    ANY      ANY      ANY    /api/contexts/{shortName}.{_format}  
  api_cheese_listings_get_collection    GET      ANY      ANY    /api/cheese_listings.{_format}       
  api_cheese_listings_post_collection   POST     ANY      ANY    /api/cheese_listings.{_format}       
  api_cheese_listings_get_item          GET      ANY      ANY    /api/cheese_listings/{id}.{_format}  
  api_cheese_listings_delete_item       DELETE   ANY      ANY    /api/cheese_listings/{id}.{_format}  
  api_cheese_listings_put_item          PUT      ANY      ANY    /api/cheese_listings/{id}.{_format}  
  api_cheese_listings_patch_item        PATCH    ANY      ANY    /api/cheese_listings/{id}.{_format}  
  _preview_error                        ANY      ANY      ANY    /_error/{code}.{_format}             
 ------------------------------------- -------- -------- ------ -------------------------------------