Detailed steps for Laravel to implement API user authorization using JWT

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Part 1 Installing JWT

The first step. Use Composer to install tymon/jwt-auth:

`composer require tymon/jwt -auth 1.0.0-rc.3

Step 2. Add the service provider (Laravel 5.4 and below, no need to add 5.5 and above),

Add the following line Go to the providers array of the config/app.php file:

<?php // 文件：app.php
&#39;providers&#39; => [
    // other code
    Tymon\JWTAuth\Providers\LaravelServiceProvider::class,
]

Step 3. Publish the configuration file,
Run the following command to publish the jwt-auth configuration file:

php artisan vendor:publish --provider="Tymon\JWTAuth\Providers\LaravelServiceProvider"

Step 4. Generate the key,

This command will add a new line to your .env file JWT_SECRET=secret.
php artisan jwt:secret

The second part starts the configuration

<?php     &#39;defaults&#39; => [
    'guard' => 'api',
    'passwords' => 'users',
],
// other code
'guards' => [
    'api' => [
        'driver' => 'jwt',
        'provider' => 'users',
    ],
],

Step 6. Change the User Model,
Implement the TymonJWTAuthContractsJWTSubject interface on the User Model,
Implement the two methods getJWTIdentifier() and getJWTCustomClaims().

<?php namespace App;

use Tymon\JWTAuth\Contracts\JWTSubject;

class User extends Authenticatable implements JWTSubject
{
    // other code

    // Rest omitted for brevity
    
    /**
     * Get the identifier that will be stored in the subject claim of the JWT.
     *
     * @return mixed
     */
    public function getJWTIdentifier()
    {
        return $this->getKey();
    }

    /**
     * Return a key value array, containing any custom claims to be added to the JWT.
     *
     * @return array
     */
    public function getJWTCustomClaims()
    {
        return [];
    }
}

Part 3 Quickly create DEMO test

<?php Route::group([
    &#39;middleware&#39; => 'api',
    'prefix' => 'auth'
], function ($router) {
    Route::post('login', 'AuthController@login');
    Route::post('register', 'AuthController@register');
    Route::post('logout', 'AuthController@logout');
    Route::post('refresh', 'AuthController@refresh');
    Route::post('me', 'AuthController@me');
});

Step 8. Create AuthController controller=> php artisan make:controller AuthController：

<?php namespace App\Http\Controllers;

use App\User;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Validator;

class AuthController extends Controller
{
    /**
     * Create a new AuthController instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('auth:api', ['except' => ['login', 'register']]);
    }

    /**
     * 用户使用邮箱密码获取JWT Token.
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function login()
    {
        $credentials = request(['email', 'password']);

        if (! $token = auth()->attempt($credentials)) {
            return response()->json(['error' => 'Unauthorized'], 401);
        }

        return $this->respondWithToken($token);
    }

    /**
     * 注册新用户
     */
    public function register(Request $request)
    {
        // 数据校验
        // 数据验证
        $validator = Validator::make($request->all(), [
            'name'       => 'required',
            'email'      => 'required|email',
            'password'   => 'required',
            'c_password' => 'required|same:password'
        ]);

        if ($validator->fails()) {
            return response()->json(['error'=>$validator->errors()], 401);
        }

        // 读取参数并保存数据
        $input = $request->all();
        $input['password'] = bcrypt($input['password']);
        $user = User::create($input);

        // 创建Token并返回
        return $user;
    }

    /**
     * 获取经过身份验证的用户.
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function me()
    {
        return response()->json(auth()->user());
    }

    /**
     * 刷新Token.
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function refresh()
    {
        return $this->respondWithToken(auth()->refresh());
    }


    /**
     * Get the token array structure.
     *
     * @param  string $token
     *
     * @return \Illuminate\Http\JsonResponse
     */
    protected function respondWithToken($token)
    {
        return response()->json([
            'access_token' => $token,
            'token_type' => 'bearer',
            'expires_in' => auth()->factory()->getTTL() * 60
        ]);
    }
}

Step 9. Use Postman to test the API:

To test API data acquisition, you need to add Token in the headers; format

key=Authorization, value=Bearer space token

Token refresh:

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