前面我們學了laravel dingo/api創建簡單的api，這樣api是開放給所有人的，如何查看和限制api的調用呢？可以用jwt-auth來驗證，JSON Web Token Authentication

　　1,首先安裝jwt-auth插件，在命令行中用composer安裝

composer require tymon/jwt-auth ‘0.5.*‘

　　2,然後發布

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

　　在/config/生成了一個jwt.php文件

　　3,生成key

php artisan jwt:generate

　　如果命令無法運行，可以在/config/jwt.php文件中修改changeme為自己設置的密匙

‘secret‘ => env(‘JWT_SECRET‘, ‘changeme‘),

　　4,修改/app/Api/Controllers/HelloController.php為

<?php

namespace App\Api\Controllers;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
//添加jwt-auth認證
use JWTAuth;
use Tymon\JWTAuth\Exceptions\JWTException;

class HelloController extends Controller
{
    public function index()
    {
        return ‘{content:Helloworld!}‘;
    }
//添加jwt-auth認證
  	public function authenticate(Request $request)
    {
        // grab credentials from the request
        $credentials = $request->only(‘email‘, ‘password‘);

        try {
            // attempt to verify the credentials and create a token for the user
            if (! $token = JWTAuth::attempt($credentials)) {
                return response()->json([‘error‘ => ‘invalid_credentials‘], 401);
            }
        } catch (JWTException $e) {
            // something went wrong whilst attempting to encode the token
            return response()->json([‘error‘ => ‘could_not_create_token‘], 500);
        }

        // all good so return the token
        return response()->json(compact(‘token‘));
    }
}

　　5,添加路由（/routes/web.php）

$api->post(‘auth‘, ‘App\Api\Controllers\HelloController@authenticate‘);

　　6,測試路由：php artisan api:routes，如果出現如下提示表示正確

　　訪問url：***.com/api/auth顯示錯誤，因為沒加token

重新修改hellocontrol和loutes

<?php

namespace App\Api\Controllers;

use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use JWTAuth;
use Tymon\JWTAuth\Exceptions\JWTException;

class HelloController extends Controller
{
    /**
     * Create a new controller instance.
     *
     * @return void
     */


    /**
     * Show the application dashboard.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return ‘{content:Helloworld!}‘;
    }
  	public function authenticate(Request $request)
    {
        // grab credentials from the request
        $credentials = $request->only(‘email‘, ‘password‘);

        try {
            // attempt to verify the credentials and create a token for the user
            if (! $token = JWTAuth::attempt($credentials)) {
                return response()->json([‘error‘ => ‘invalid_credentials‘], 401);
            }
        } catch (JWTException $e) {
            // something went wrong whilst attempting to encode the token
            return response()->json([‘error‘ => ‘could_not_create_token‘], 500);
        }

        // all good so return the token
        return response()->json(compact(‘token‘));
    }
  //添加user
  	public function user()
    {
      JWTAuth::parseToken();
      $user = JWTAuth::parseToken()->authenticate();
      return $user;
    }
}

<?php

Route::get(‘/‘, function () {
    return view(‘welcome‘);
});

Auth::routes();

Route::get(‘/home‘, ‘HomeController@index‘)->name(‘home‘);

$api = app(‘Dingo\Api\Routing\Router‘);
$api->version(‘v1‘, function ($api) {
    $api->get(‘helloworld‘, ‘App\Api\Controllers\HelloController@index‘);
  $api->post(‘auth‘, ‘App\Api\Controllers\HelloController@authenticate‘);
  $api->get(‘auth‘, ‘App\Api\Controllers\HelloController@user‘);
});

　　用谷歌瀏覽器postman插件獲取token，註意是post方法，步驟如下圖所示

　　將獲取的token復制，黏貼到第二步的用戶驗證token中，下圖5中就是我們剛剛註冊的用戶

laravel dingo/api添加jwt-auth認證