Laravel Create Get ID

Laravel is a powerful PHP framework for building web applications. One of the most common tasks in web development is creating a resource and then being able to retrieve that resource by its ID. In this tutorial, we will demonstrate how to create a resource in Laravel and then retrieve it by its ID.

Prerequisites

Before we begin, make sure you have the following installed:

• PHP (version 7 or later)
• Composer
• Laravel (version 5 or later)

Creating the Resource

To create a resource in Laravel, we first need to create a migration. A migration is a way of defining the database schema for our resource.

Let's create a migration for a books table. Each book will have an id (which will be automatically generated), a title, and an author. Run the following command to create a migration:

php artisan make:migration create_books_table --create=books

This will create a new migration file in the database/migrations directory.

Now, open the migration file and define the schema for the books table:

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

class CreateBooksTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('books', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->string('title');
            $table->string('author');
            $table->timestamps();
        });
    }

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

This migration will create a books table with the specified columns.

Next, we need to run the migration to create the books table in the database. Run the following command:

php artisan migrate

At this point, we have created a resource in our database. Now, we need to be able to retrieve it.

Retrieving the Resource by ID

In Laravel, we can retrieve a resource by its ID using a route parameter. Let's create a route to retrieve a book by its ID:

Route::get('/books/{id}', function ($id) {
    $book = App\Book::find($id);
    return $book;
});

This route will retrieve a book from the books table by its ID and return it as a JSON response.

Now, if we navigate to http://localhost:8000/books/{id} in our browser (replacing {id} with an actual ID), we should see the book returned as JSON.

Conclusion

In this tutorial, we have demonstrated how to create a resource in Laravel and then retrieve it by its ID using a route parameter. In a real-world application, you would likely want to add more functionality, such as creating, updating, and deleting resources, but this tutorial should serve as a good starting point.