Laravel Introduction to REST APIs

Stateless → Each request contains all info (server does not store session state).
Client-Server Separation → Client (frontend) and server (backend) are independent.
Uniform Interface → Same approach for accessing resources.
Resource-Based → Everything (users, posts, products) is a resource, identified by a unique URL.
Representation → Resources can be returned in JSON, XML, etc. (JSON is most common).

REST API HTTP Methods

Method	Purpose	Example
GET	Retrieve resource(s)	`GET /users` (get all users)
POST	Create new resource	`POST /users` (create new user)
PUT	Update entire resource	`PUT /users/1` (update user with ID=1)
PATCH	Update partial resource	`PATCH /users/1` (update only email of user 1)
DELETE	Remove resource	`DELETE /users/1` (delete user 1)

API Resource Controllers

For API-only routes (no create, edit):

php artisan make:controller ProductController --api

This will create app/Http/Controllers/ProductController.php. with index,store,show,update,destroy functions

class PostController extends Controller
{
    public function index(){   //    }

    public function store(Request $request){    //    }

    public function show(string $id){    //    }

    public function update(Request $request, string $id){   //    }

    public function destroy(string $id){    //    }
}

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