As powerful workstations slowly but surely work to remaster all the world’s old film and video footage to higher resolutions and frame rates using machine learning techniques, you’d assume that one piece of footage would have been a top priority. But apparently Rick Astley’s “Never Gonna Give You Up” music video has only just been given the 4K, 60 FPS upgrade, and your eyes may never forgive you.

Watching the original music video again, which boasts a respectable 871,696,897 views on YouTube at the time of writing, it looks like “Never Gonna Give You Up” was shot on professional-grade video tape, presumably Sony’s Betacam format, giving it that recognizable ‘80s video look.

The remastered version, which was created using Topaz Video Enhance AI to boost the resolution to 4K and the Flowframes video interpolation tool to boost the frame rate to 60 frames per second, looks like it was filmed on a modern smartphone just yesterday. We now have the ability to Rickroll someone so that they’re not only inconvenienced, but also feel like they’re actually on set with Astley while this video was being shot. Astley may never desert you, but your eyes will want to.

What is Livewire?

Livewire is a full-stack framework for Laravel that makes building dynamic interfaces simple, without leaving the comfort of Laravel. Livewire relies solely on AJAX requests to do all its server communications. Livewire completely sends Ajax requests to do all its server-side communication without writing any line of Ajax script.

In this blog, we have described a step-by-step guide for Creating CRUD (Create, Read, Update, Delete) Application in the Laravel 8 framework by using the Livewire package.

Table Of Contents

1. Create Laravel Application
2. Configure Database Details
3. Install Livewire Package
4. Create Model and Migration
5. Create Livewire Component and View
6. Define Routes
7. Run Project

Step 1: Create Laravel Application

First, open Terminal and run the following command to create a fresh laravel project:

composer create-project --prefer-dist laravel/laravel larawire-crud-app

or, if you have installed the Laravel Installer as a global composer dependency:

laravel new larawire-crud-app

Step 2: Configure Database Details

After, Installation Go to the project root directory, open .env file, and set database detail as follow:

DB_CONNECTION=mysql 
DB_HOST=127.0.0.1 
DB_PORT=3306 
DB_DATABASE=<DATABASE NAME>
DB_USERNAME=<DATABASE USERNAME>
DB_PASSWORD=<DATABASE PASSWORD>

Step 3: Install Livewire Package:

composer require livewire/livewire

Step 4: Create Model and Migration:

php artisan make:model Category -m

-m this argument will create Migration in Single Command.

Now, Open migration file of category from database/migration and replace code in up() function:

public function up()
{
    Schema::create('categories', function (Blueprint $table) {
        $table->id();
        $table->string('name')->nullable();
        $table->text('description')->nullable();
        $table->timestamps();
    });
}

Migrate the database using the following command:

php artisan migrate

Now, Open Category.php model from app/Models and update code into Category.php Model:

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Category extends Model
{
    use HasFactory;

    protected $fillable = [
        'name', 'description'
    ];

    public $timestamps = true;
}

Step 5: Create Livewire Component and View

Run the below command to create a livewire view and component.

php artisan make:livewire category

After running this command you will find two files in the following path app/Http/Livewire/Contact.php and resources/views/livewire/contact.blade.php

Now, open app\Http\Livewire\Category.php and update the following code into that file:

namespace App\Http\Livewire;

use Livewire\Component;
use App\Models\Category as Categories;

class Category extends Component
{
    public $categories, $name, $description, $category_id;
    public $updateCategory = false;

    protected $listeners = [
        'deleteCategory'=>'destroy'
    ];

    // Validation Rules
    protected $rules = [
        'name'=>'required',
        'description'=>'required'
    ];

    public function render()
    {
        $this->categories = Categories::select('id','name','description')->get();
        return view('livewire.category');
    }

    public function resetFields(){
        $this->name = '';
        $this->description = '';
    }

    public function store(){

        // Validate Form Request
        $this->validate();

        try{
            // Create Category
            Categories::create([
                'name'=>$this->name,
                'description'=>$this->description
            ]);
    
            // Set Flash Message
            session()->flash('success','Category Created Successfully!!');

            // Reset Form Fields After Creating Category
            $this->resetFields();
        }catch(\Exception $e){
            // Set Flash Message
            session()->flash('error','Something goes wrong while creating category!!');

            // Reset Form Fields After Creating Category
            $this->resetFields();
        }
    }

    public function edit($id){
        $category = Categories::findOrFail($id);
        $this->name = $category->name;
        $this->description = $category->description;
        $this->category_id = $category->id;
        $this->updateCategory = true;
    }

    public function cancel()
    {
        $this->updateCategory = false;
        $this->resetFields();
    }

    public function update(){

        // Validate request
        $this->validate();

        try{

            // Update category
            Categories::find($this->category_id)->fill([
                'name'=>$this->name,
                'description'=>$this->description
            ])->save();

            session()->flash('success','Category Updated Successfully!!');
    
            $this->cancel();
        }catch(\Exception $e){
            session()->flash('error','Something goes wrong while updating category!!');
            $this->cancel();
        }
    }

    public function destroy($id){
        try{
            Categories::find($id)->delete();
            session()->flash('success',"Category Deleted Successfully!!");
        }catch(\Exception $e){
            session()->flash('error',"Something goes wrong while deleting category!!");
        }
    }
}

Now, Create resources/views/home.blade.php and update the following code into that file:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Livewire Crud Example - TechvBlogs</title>

    <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1" crossorigin="anonymous">
    @livewireStyles
</head>
<body>
    <nav class="navbar navbar-expand-lg navbar-dark bg-dark">
        <div class="container-fluid">
            <a class="navbar-brand" href="/">Livewire Crud Example - TechvBlogs</a>
        </div>
    </nav>

    <div class="container">
        <div class="row justify-content-center mt-3">
            <div class="col-md-8">
                <div class="card">
                    <div class="card-header text-center">
                        <h2>Livewire Crud Example - TechvBlogs</h2>
                        <a href="https://techvblogs.com?ref=LivewireCrudApp" target="_blank">Visit Site</a>
                    </div>
                </div>
            </div>
        </div>
        <div class="row justify-content-center mt-3">
            @livewire('category')
        </div>
    </div>
    
    @livewireScripts
</body>
</html>

Next, Open resources/views/livewire/category.blade.php and update the following code into that file:

<div>
    <div class="col-md-8 mb-2">
        <div class="card">
            <div class="card-body">
                @if(session()->has('success'))
                    <div class="alert alert-success" role="alert">
                        
                    </div>
                @endif

                @if(session()->has('error'))
                    <div class="alert alert-danger" role="alert">
                        
                    </div>
                @endif

                @if($updateCategory)
                    @include('livewire.update')
                @else
                    @include('livewire.create')
                @endif
            </div>
        </div>
    </div>

    <div class="col-md-8">
        <div class="card">
            <div class="card-body">
                <div class="table-responsive">
                    <table class="table">
                        <thead>
                            <tr>
                                <th>Name</th>
                                <th>Description</th>
                                <th>Action</th>
                            </tr>
                        </thead>
                        <tbody>
                            @if (count($categories) > 0)
                                @foreach ($categories as $category)
                                    <tr>
                                        <td>
                                            
                                        </td>
                                        <td>
                                            
                                        </td>
                                        <td>
                                            <button wire:click="edit()" class="btn btn-primary btn-sm">Edit</button>
                                            <button onclick="deleteCategory()" class="btn btn-danger btn-sm">Delete</button>
                                        </td>
                                    </tr>
                                @endforeach
                            @else
                                <tr>
                                    <td colspan="3" align="center">
                                        No Categories Found.
                                    </td>
                                </tr>
                            @endif
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>

    <script>
        function deleteCategory(id){
            if(confirm("Are you sure to delete this record?"))
                window.livewire.emit('deleteCategory',id);
        }
    </script>
</div>

Now, Create resources/views/livewire/create.blade.php and add the following code into that file:

<form>
    <div class="form-group mb-3">
        <label for="categoryName">Name:</label>
        <input type="text" class="form-control @error('name') is-invalid @enderror" id="categoryName" placeholder="Enter Name" wire:model="name">
        @error('name') <span class="text-danger"></span>@enderror
    </div>
    <div class="form-group mb-3">
        <label for="categoryDescription">Description:</label>
        <textarea class="form-control @error('description') is-invalid @enderror" id="categoryDescription" wire:model="description" placeholder="Enter Description"></textarea>
        @error('description') <span class="text-danger"></span>@enderror
    </div>
    <div class="d-grid gap-2">
        <button wire:click.prevent="store()" class="btn btn-success btn-block">Save</button>
    </div>
</form>

Next, Create resources/views/livewire/update.blade.php and update the following code into that file:

<form>
    <input type="hidden" wire:model="category_id">
    <div class="form-group mb-3">
        <label for="categoryName">Name:</label>
        <input type="text" class="form-control @error('name') is-invalid @enderror" id="categoryName" placeholder="Enter Name" wire:model="name">
        @error('name') <span class="text-danger"></span>@enderror
    </div>
    <div class="form-group mb-3">
        <label for="categoryDescription">Description:</label>
        <textarea class="form-control @error('description') is-invalid @enderror" id="categoryDescription" wire:model="description" placeholder="Enter Description"></textarea>
        @error('description') <span class="text-danger"></span>@enderror
    </div>
    <div class="d-grid gap-2">
        <button wire:click.prevent="update()" class="btn btn-success btn-block">Save</button>
        <button wire:click.prevent="cancel()" class="btn btn-danger">Cancel</button>
    </div>
</form>

Step 6: Define Routes

Open routes/web.php and update the following code into that file:

Route::get('/',function(){
    return view('home');
});

Step 7: Run Project

Now all are set to go, open a terminal and run the following command into your terminal.

php artisan serve

Now you can open bellow URL on your browser:

http://localhost:8000

It’d be a good idea to follow along with the simple demo app that can be found in this GitHub repo.

Read Also: Build Crud App with Laravel and Vue.js

If you have any queries or doubts about this topic please feel free to contact us. We will try to reach you.

With the rise of Mobile Development and JavaScript frameworks, using a RESTful API is the best option to build a single interface between your data and your client.

PHP has been the most popular web language in the present times by being simple to maintain, and quick to create feature-rich web applications. Websites that are dynamic, interactive, secure, and efficient need a powerful toolset to create and consume APIs.

In this article, you will learn how to build a modern RESTful API in Laravel.

Now let’s look at building a PHP RESTful API with Laravel.

Table of Contents:

1. Prerequisites
2. Understanding Our Application
3. Setup New Laravel App
4. Create MySQL Database
5. Create Model and Migration
6. Create Controller and Request
7. Setup CRUD (Create, Read, Update and Delete)

Step 1: Prerequisites

Let’s look at these technologies as we build our API:

Step 2: Understanding Our Application

You will build a CRUD API. CRUD means Create, Read, Update, and Delete. Our API will have the following endpoints:

Step 3: Setup New Laravel App

To get started, create a Laravel application. To do this, run the following command in your terminal:

composer create-project laravel/laravel rest-api

or, if you have installed the Laravel Installer as a global composer dependency:

laravel new rest-api

Next, start up the Laravel server if it’s not already running:

php artisan serve

You will visit your application on http://localhost:8000.

Step 4: Create MySQL Database

Create a new database for your application.

Login into MySQL and run the following command:

mysql -u<username> -p<password>

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1791
Server version: 8.0.22-0ubuntu0.20.04.3 (Ubuntu)

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

For Create a new Database, run the following command:

CREATE DATABASE `rest-api`;

Step 5: Create Model and Migration

We can create a Model along with migration, run the following command:

php artisan make:model Post -m

-m this argument will create Migration in Single Command.

A new file named Post.php will be created in the app directory.

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
    protected $table = 'posts';

    protected $fillable = [
    	'name', 
    	'image', 
    	'description'
    ];
}

A migration file will be created in the database/migrations directory to generate the table in our database. Modify the migration file to create a column for name, description, and image, these all are fields that accept string value.

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreatePostsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('posts', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->string('image');
            $table->text('description');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('posts');
    }
}

Open the .env file and update the credentials to access your MySQL database:

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=<your-database-name>
DB_USERNAME=<your-database-username>
DB_PASSWORD=<your-database-password>

Next, you will run your migration using the following command:

php artisan migrate 

Step 6: Create Controller and Request

Create a resource Controller, run the following command:

php artisan make:controller PostController -r

Resource controllers make it painless to build RESTful controllers around resources.

This is the initial content of PostController.php:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class PostController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        //
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }
}

Next, create a Request file, run the following command:

php artisan make:request PostStoreRequest

As many of you already know, there are many ways to validate request in Laravel. Handling request validation is a very crucial part of any application. Laravel has some outstanding feature which deals with this very well. This is the initial content of PostStoreRequest.php:

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class PostStoreRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return false;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            //
        ];
    }
}

HTTP Status Codes

We’ve also added the response()->json() call to our endpoints. This lets us explicitly return JSON data and send an HTTP code the client can parse. The most common codes you’ll be returning will be:

• 200 : OK. The standard success code and default option.
• 201 : Created. Object created. Useful for the store actions.
• 204 : No Content. When the action was executed successfully, but there is no content to return.
• 206 : Partial Content. Useful when you have to return a paginated list of resources.
• 400 : Bad Request. The standard option for requests that cannot pass validation.
• 401 : Unauthorized. The user needs to be authenticated.
• 403 : Forbidden. The user is authenticated but does not have the permissions to perform an action.
• 404 : Not Found. Laravel will return automatically when the resource is not found.
• 500 : Internal Server Error. Ideally, you will not be explicitly returning this, but if something unexpected breaks, this is what your user is going to receive.
• 503 : Service Unavailable. Pretty self-explanatory, but also another code that is not going to be returned explicitly by the application.

Step 7: Setup CRUD (Create, Read, Update and Delete)

1. Setup Routes

Note: All API requests will need the header Accept: application/json.

Add the routes to the API routes file, to access all the functions we wrote.

Now, open routes/api.php and update the following code into that file:

Route::get('posts', "[email protected]"); // List Posts
Route::post('posts', "[email protected]"); // Create Post
Route::get('posts/{id}', "[email protected]"); // Detail of Post
Route::put('posts/{id}', "[email protected]"); // Update Post
Route::delete('posts/{id}', "[email protected]"); // Delete Post

or you can add a resource route like this:

Route::resource('posts','PostController');

Now, open app\Http\Controllers\PostController.php and update the following code into that file:

2. Read All Post

For, get the list of all posts. Update the following code into that file:

/**
 * Display a listing of the resource.
 *
 * @return \Illuminate\Http\Response
 */
public function index()
{
   // All Posts
   $posts = Post::all();

   // Return Json Response
   return response()->json([
      'posts' => $posts
   ],200);
}

Get the detail of the post by ID. Update the following code into that file:

/**
 * Display the specified resource.
 *
 * @param  int  $id
 * @return \Illuminate\Http\Response
 */
public function show($id)
{
   // Post Detail 
   $post = Post::findOrFail($id);
   if(!$post){
     return response()->json([
        'message'=>'Post Not Found.'
     ],404);
   }

   // Return Json Response
   return response()->json([
      'post' => $post
   ],200);
}

3. Create Post

Now, open app\Http\Requests\PostStoreRequest.php and update the following code into that file:

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class PostStoreRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        if(request()->isMethod('post')) {
            return [
                'name' => 'required|string|max:258',
                'image' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
                'description' => 'required|string'
            ];
        } else {
            return [
                'name' => 'required|string|max:258',
                'image' => 'nullable|image|mimes:jpeg,png,jpg,gif,svg|max:2048',
                'description' => 'required|string'
            ];
        }
    }

    /**
     * Custom message for validation
     *
     * @return array
     */
    public function messages()
    {
        if(request()->isMethod('post')) {
            return [
                'name.required' => 'Name is required!',
                'image.required' => 'Image is required!',
                'description.required' => 'Descritpion is required!'
            ];
        } else {
            return [
                'name.required' => 'Name is required!',
                'description.required' => 'Descritpion is required!'
            ];   
        }
    }
}

Now, open app\Http\Controllers\PostController.php and update the following code into that file:

/**
 * Store a newly created resource in storage.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return \Illuminate\Http\Response
 */
public function store(PostStoreRequest $request)
{
    try {
        $imageName = Str::random(32).".".$request->image->getClientOriginalExtension();

        // Create Post
        Post::create([
            'name' => $request->name,
            'image' => $imageName,
            'description' => $request->description
        ]);

        // Save Image in Storage folder
        Storage::disk('public')->put($imageName, file_get_contents($request->image));

        // Return Json Response
        return response()->json([
            'message' => "Post successfully created."
        ],200);
    } catch (\Exception $e) {
        // Return Json Response
        return response()->json([
            'message' => "Something went really wrong!"
        ],500);
    }
}

4. Update Post

/**
 * Update the specified resource in storage.
 *
 * @param  \Illuminate\Http\Request  $request
 * @param  int  $id
 * @return \Illuminate\Http\Response
 */
public function update(PostStoreRequest $request, $id)
{
    try {
        // Find Post
        $post = Post::findOrFail($id);
        if(!$post){
          return response()->json([
            'message'=>'Post Not Found.'
          ],404);
        }

        $post->name = $request->name;
        $post->description = $request->description;

        if($request->image) {
            // Public storage
            $storage = Storage::disk('public');

            // Old iamge delete
            if($storage->exists($post->image))
                $storage->delete($post->image);

            // Image name
            $imageName = Str::random(32).".".$request->image->getClientOriginalExtension();
            $post->image = $imageName;

            // Image save in public folder
            $storage->put($imageName, file_get_contents($request->image));
        }

        // Update Post
        $post->save();

        // Return Json Response
        return response()->json([
            'message' => "Post successfully updated."
        ],200);
    } catch (\Exception $e) {
        // Return Json Response
        return response()->json([
            'message' => "Something went really wrong!"
        ],500);
    }
}

5. Delete Post

Delete post by ID. Update the following code into that file:

/**
 * Remove the specified resource from storage.
 *
 * @param  int  $id
 * @return \Illuminate\Http\Response
 */
public function destroy($id)
{
    // Post Detail 
    $post = Post::findOrFail($id);
    if(!$post){
      return response()->json([
         'message'=>'Post Not Found.'
      ],404);
    }

    // Public storage
    $storage = Storage::disk('public');

    // Iamge delete
    if($storage->exists($post->image))
        $storage->delete($post->image);

    // Delete Post
    $post->delete();

    // Return Json Response
    return response()->json([
        'message' => "Post successfully deleted."
    ],200);
}

You may or may not be aware that there is an artisan command to create the symbolic link from the storage folder to the public folder.

What it does is, it allows us to access the files. By default, laravel wants you to store your files in the storage directory keeping the public directory clean only for your public files.

This command helps us to generate symbolic links.

php artisan storage:link

It’d be a good idea to follow along with the simple demo app that can be found in this GitHub repo.

Thank you for reading this article!!

Read Also: Laravel Livewire Crud Tutorial

If you have any queries or doubts about this topic please feel free to contact us. We will try to reach you.