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详解Laravel制作API接口

IT博客 操作系统 linux 447

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详细介绍

需要注意的是：API有它的具体用途，我们应该清楚它是干啥的。访问API的时候应该输入什么。访问过API过后应该得到什么。

在开始设计API时，我们应该注意这8点。后续的开发计划就围绕着这个进行了。

1.Restful设计原则

2.API的命名

3.API的安全性

4.API返回数据

5.图片的处理

6.返回的提示信息

7.在线API测试文档

8.在app启动时，调用一个初始化API获取必要的信息

用laravel开发API

就在我上愁着要不要从零开始学习的时候，找到了这个插件dingo/api那么现在就来安装吧！

首先一定是下载的没错

在新安装好的laravel的composer.json加入如下内容

然后打开cmd执行

composer update

在config/app.php中的providers里添加

AppProvidersOAuthServiceProvider::class,

DingoApiProviderLaravelServiceProvider::class,

LucaDegasperiOAuth2ServerStorageFluentStorageServiceProvider::class,

LucaDegasperiOAuth2ServerOAuth2ServerServiceProvider::class,

在aliases里添加

"Authorizer" => LucaDegasperiOAuth2ServerFacadesAuthorizer::class,

修改app/Http/Kernel.php文件里的内容

protected $middleware = [LucaDegasperiOAuth2ServerMiddlewareOAuthExceptionHandlerMiddleware::class,
];
protected $routeMiddleware = [
 "oauth" => LucaDegasperiOAuth2ServerMiddlewareOAuthMiddleware::class,
 "oauth-user" => LucaDegasperiOAuth2ServerMiddlewareOAuthUserOwnerMiddleware::class,
 "oauth-client" => LucaDegasperiOAuth2ServerMiddlewareOAuthClientOwnerMiddleware::class,
 "check-authorization-params" => LucaDegasperiOAuth2ServerMiddlewareCheckAuthCodeRequestMiddleware::class,
 "csrf" => AppHttpMiddlewareVerifyCsrfToken::class,
];

然后执行

php artisan vendor:publish

php artisan migrate

在.env文件里添加这些配置

API_STANDARDS_TREE=x

API_SUBTYPE=rest

API_NAME=REST

API_PREFIX=api

API_VERSION=v1

API_CONDITIONAL_REQUEST=true

API_STRICT=false

API_DEBUG=true

API_DEFAULT_FORMAT=json

修改appconfigoauth2.php文件

"grant_types" => [
 "password" => [
 "class" => "LeagueOAuth2ServerGrantPasswordGrant",
 "access_token_ttl" => 604800,
 "callback" => "AppHttpControllersAuthPasswordGrantVerifier@verify",
 ],
],

新建一个服务提供者，在app/Providers下新建OAuthServiceProvider.php文件内容如下

namespace AppProviders;
   
use DingoApiAuthAuth;
use DingoApiAuthProviderOAuth2;
use IlluminateSupportServiceProvider;
   
class OAuthServiceProvider extends ServiceProvider
{
 public function boot()
 {
 $this->app[Auth::class]->extend("oauth", function ($app) {
 $provider = new OAuth2($app["oauth2-server.authorizer"]->getChecker());
   
 $provider->setUserResolver(function ($id) {
 // Logic to return a user by their ID.
 });
   
 $provider->setClientResolver(function ($id) {
 // Logic to return a client by their ID.
 });
   
 return $provider;
 });
 }
   
 public function register()
 {
 //
 }
}

然后打开routes.php添加相关路由

//Get access_token
Route::post("oauth/access_token", function() {
 return Response::json(Authorizer::issueAccessToken());
});
   
//Create a test user, you don"t need this if you already have.
Route::get("/register",function(){
 $user = new AppUser();
 $user->name="tester";
 $user->email="test@test.com";
 $user->password = IlluminateSupportFacadesHash::make("password");
 $user->save();
});
$api = app("DingoApiRoutingRouter");
   
//Show user info via restful service.
$api->version("v1", ["namespace" => "AppHttpControllers"], function ($api) {
 $api->get("users", "UsersController@index");
 $api->get("users/{id}", "UsersController@show");
});
   
//Just a test with auth check.
$api->version("v1", ["middleware" => "api.auth"] , function ($api) {
 $api->get("time", function () {
 return ["now" => microtime(), "date" => date("Y-M-D",time())];
 });
});

分别创建BaseController.php和UsersController.php内容如下

//BaseController
namespace AppHttpControllers;
   
use DingoApiRoutingHelpers;
use IlluminateRoutingController;
   
class BaseController extends Controller
{
 use Helpers;
}
   
//UsersController
namespace AppHttpControllers;
   
use AppUser;
use AppHttpControllersController;
   
class UsersController extends BaseController
{
   
 public function index()
 {
 return User::all();
 }
   
 public function show($id)
 {
 $user = User::findOrFail($id);
 // 数组形式
 return $this->response->array($user->toArray());
 }
}

随后在app/Http/Controllers/Auth/下创建PasswordGrantVerifier.php内容如下

namespace AppHttpControllersAuth;
use IlluminateSupportFacadesAuth;
   
class PasswordGrantVerifier
{
 public function verify($username, $password)
 {
 $credentials = [
 "email" => $username,
 "password" => $password,
 ];
   
 if (Auth::once($credentials)) {
 return Auth::user()->id;
 }
   
 return false;
 }
}

打开数据库的oauth_client表新增一条client数据

INSERT INTO "oauth_clients" ("id", "secret", "name", "created_at", "updated_at") VALUES ("1", "2", "Main website", "2016–03–13 23:00:00", "0000–00–00 00:00:00");

随后的就是去愉快的测试了，这里要测试的API有

新增一个用户

http://localhost/register

读取所有用户信息

http://localhost/api/users

只返回用户id为4的信息

http://localhost/api/users/4

获取access_token

http://localhost/oauth/access_token

利用token值获得时间，token值正确才能返回正确值

http://localhost/api/time

打开PostMan