Arsitektur Endpoint Restful API Berskala Tinggi Di Codeigniter 4 Di Crud Codeigniter 4 & Vue Js — Part 2

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Tahapan Implementasi & Walkthrough Kode

Berikut adalah langkah demi langkah teknis yang dapat Anda ikuti langsung pada codebase Anda:

Tahap 1: Penulisan Kode & Konfigurasi

PostModel.php
<?php namespace App\Models;

use CodeIgniter\Model;

class PostModel extends Model
{
    /**
     * table name
     */
    protected $table = "posts";


    /**
     * allowed Field
     */
    protected $allowedFields = [
        'title',
        'content'
    ];
}

Tahap 2: Penulisan Kode & Konfigurasi

<?php

namespace App\Controllers;

use CodeIgniter\RESTful\ResourceController;

class Post extends ResourceController
{
    protected $modelName = 'App\Models\PostModel';
    protected $format = 'json';

    /**
     * index function
     * @method : GET
     */
    public function index()
    {
        return $this->respond([
            'statusCode' => 200,
            'message'    => 'OK',
            'data'       => $this->model->orderBy('id', 'DESC')->findAll()
        ], 200);
    }

    /**
     * show function
     * @method : GET with params ID
     */
    public function show($id = null)
    {
        return $this->respond([
            'statusCode' => 200,
            'message'    => 'OK',
            'data'       => $this->model->find($id)
        ], 200);
    }

    /**
     * create function
     * @method : POST
     */
    public function create()
    {
        if ($this->request)
        {
            //get request from Vue Js
            if($this->request->getJSON()) {

                $json = $this->request->getJSON();

                $post = $this->model->insert([
                    'title'     => $json->title,
                    'content'   => $json->content
                ]);

            } else {

                //get request from Postman and more
                $post = $this->model->insert([
                    'title'     => $this->request->getPost('title'),
                    'content'   => $this->request->getPost('content')
                ]);
            }
            
            return $this->respond([
                'statusCode' => 201,
                'message'    => 'Data Berhasil Disimpan!',
            ], 201);
        }
    }

    /**
     * update function
     * @method : PUT or PATCH
     */
    public function update($id = null)
    {
        //model
        $post = $this->model;

        if ($this->request)
        {
            //get request from Vue Js
            if($this->request->getJSON()) {
            
                $json = $this->request->getJSON();
                
                $post->update($json->id, [
                    'title'     => $json->title,
                    'content'   => $json->content
                ]);

            } else {

                //get request from Postman and more
                $data = $this->request->getRawInput();
                $post->update($id, $data);
            }

            return $this->respond([
                'statusCode' => 200,
                'message'    => 'Data Berhasil Diupdate!',
            ], 200);
        }
    }


    /**
     * edit function
     * @method : DELETE with params ID
     */
    public function delete($id = null)
    {
        $post = $this->model->find($id);

        if($post) {

            $this->model->delete($id);

            return $this->respond([
                'statusCode' => 200,
                'message'    => 'Data Berhasil Dihapus!',
            ], 200);

        }
    }
}

Tahap 3: Penulisan Kode & Konfigurasi

use CodeIgniter\RESTful\ResourceController;

Tahap 4: Penulisan Kode & Konfigurasi

protected $modelName = 'App\Models\PostModel';
protected $format = 'json';

Tahap 5: Penulisan Kode & Konfigurasi

$routes->resource('api/post', ['controller' =>'Post']);

Tahap 6: Penulisan Kode & Konfigurasi

$routes->get('api/post/new',             'Post::new');
$routes->post('api/post',                'Post::create');
$routes->get('api/post',                 'Post::index');
$routes->get('api/post/(:segment)',      'Post::show/$1');
$routes->get('api/post/(:segment)/edit', 'Post::edit/$1');
$routes->put('api/post/(:segment)',      'Post::update/$1');
$routes->patch('api/post/(:segment)',    'Post::update/$1');
$routes->delete('api/post/(:segment)',   'Post::delete/$1');

Tahap 7: Penulisan Kode & Konfigurasi

{
    "statusCode": 201,
    "message": "Data Berhasil Disimpan!",
}

Tahap 8: Penulisan Kode & Konfigurasi

{
    "statusCode": 200,
    "message": "OK",
    "data": [
        {
            "id": "1",
            "title": "Judul Post 1",
            "content": "Konten Post 1"
        }
    ]
}

Tahap 9: Penulisan Kode & Konfigurasi

{
    "statusCode": 200,
    "message": "Data Berhasil Diupdate!",
}

Tahap 10: Penulisan Kode & Konfigurasi

{
    "statusCode": 200,
    "message": "Data Berhasil Dihapus!",
}

Kesimpulan

Dengan mengikuti langkah-langkah terstruktur di atas, implementasi modul Anda akan jauh lebih rapi, aman dari bug umum, serta siap diskalakan ke lingkungan produksi.

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