无法为类型项生成IRI的api-platform.com

Question

我正在尝试设置我的第一个api平台实例，并且在IDE周围遇到了一些可能是noob的问题。我试图做的是建立一个注册和重置实体，以处理注册和密码提醒从一个应用程序。然后，将实体传递给自定义控制器，以便在事后进行一些检查、平衡和邮件(目前还没有做到这一点)。但是，当我向我的自定义实体发布时，我经常会遇到这个错误：

{
    "@context": "/api/contexts/Error",
    "@type": "hydra:Error",
    "hydra:title": "An error occurred",
    "hydra:description": "Unable to generate an IRI for the item of type \"App\\XXX\\UserBundle\\Entity\\Register\"",
    "trace": [
        {
            "namespace": "",
            "short_class": "",
            "class": "",
            "type": "",
            "function": "",
            "file": "/var/www/webservice/vendor/api-platform/core/src/Bridge/Symfony/Routing/IriConverter.php",
            "line": 116,
            "args": []
        },
        {
            "namespace": "ApiPlatform\\Core\\Bridge\\Symfony\\Routing",
            "short_class": "IriConverter",
            "class": "ApiPlatform\\Core\\Bridge\\Symfony\\Routing\\IriConverter",
            "type": "->",
            "function": "getIriFromItem",
            "file": "/var/www/webservice/vendor/api-platform/core/src/JsonLd/Serializer/ItemNormalizer.php",
            "line": 71,
            "args": [
                [
                    "object",
                    "App\\XXX\\UserBundle\\Entity\\Register"
                ]
            ]
        },
        {
            "namespace": "ApiPlatform\\Core\\JsonLd\\Serializer",
            "short_class": "ItemNormalizer",
            "class": "ApiPlatform\\Core\\JsonLd\\Serializer\\ItemNormalizer",
            "type": "->",
            "function": "normalize",
            "file": "/var/www/webservice/vendor/symfony/serializer/Serializer.php",
            "line": 138,
            "args": [
                [
                    "object",
                    "App\\XXX\\UserBundle\\Entity\\Register"
                ],
                [
                    "string",
                    "jsonld"
                ],
                [
                    "array",
                    {
                        "collection_operation_name": [
                            "string",
                            "post"
                        ],
                        "operation_type": [
                            "string",
                            "collection"
                        ],
                        "resource_class": [
                            "string",
                            "App\\XXX\\UserBundle\\Entity\\Register"
                        ],
                        "request_uri": [
                            "string",
                            "/api/register"
                        ],
                        "uri": [
                            "string",
                            "http://webservice.local/api/register"
                        ],
                        "resources": [
                            "object",
                            "ApiPlatform\\Core\\Serializer\\ResourceList"
                        ],
                        "jsonld_has_context": [
                            "boolean",
                            true
                        ]
                    }
                ]
            ]
        },
        {
            "namespace": "Symfony\\Component\\Serializer",
            "short_class": "Serializer",
            "class": "Symfony\\Component\\Serializer\\Serializer",
            "type": "->",
            "function": "normalize",
            "file": "/var/www/webservice/vendor/symfony/serializer/Serializer.php",
            "line": 111,
            "args": [
                [
                    "object",
                    "App\\XXX\\UserBundle\\Entity\\Register"
                ],
                [
                    "string",
                    "jsonld"
                ],
                [
                    "array",
                    {
                        "collection_operation_name": [
                            "string",
                            "post"
                        ],
                        "operation_type": [
                            "string",
                            "collection"
                        ],
                        "resource_class": [
                            "string",
                            "App\\XXX\\UserBundle\\Entity\\Register"
                        ],
                        "request_uri": [
                            "string",
                            "/api/register"
                        ],
                        "uri": [
                            "string",
                            "http://webservice.local/api/register"
                        ],
                        "resources": [
                            "object",
                            "ApiPlatform\\Core\\Serializer\\ResourceList"
                        ]
                    }
                ]
            ]
        },
        {
            "namespace": "Symfony\\Component\\Serializer",
            "short_class": "Serializer",
            "class": "Symfony\\Component\\Serializer\\Serializer",
            "type": "->",
            "function": "serialize",
            "file": "/var/www/webservice/vendor/api-platform/core/src/EventListener/SerializeListener.php",
            "line": 67,
            "args": [
                [
                    "object",
                    "App\\XXX\\UserBundle\\Entity\\Register"
                ],
                [
                    "string",
                    "jsonld"
                ],
                [
                    "array",
                    {
                        "collection_operation_name": [
                            "string",
                            "post"
                        ],
                        "operation_type": [
                            "string",
                            "collection"
                        ],
                        "resource_class": [
                            "string",
                            "App\\XXX\\UserBundle\\Entity\\Register"
                        ],
                        "request_uri": [
                            "string",
                            "/api/register"
                        ],
                        "uri": [
                            "string",
                            "http://webservice.local/api/register"
                        ],
                        "resources": [
                            "object",
                            "ApiPlatform\\Core\\Serializer\\ResourceList"
                        ]
                    }
                ]
            ]
        },
        {
            "namespace": "ApiPlatform\\Core\\EventListener",
            "short_class": "SerializeListener",
            "class": "ApiPlatform\\Core\\EventListener\\SerializeListener",
            "type": "->",
            "function": "onKernelView",
            "file": "/var/www/webservice/vendor/symfony/event-dispatcher/EventDispatcher.php",
            "line": 212,
            "args": [
                [
                    "object",
                    "Symfony\\Component\\HttpKernel\\Event\\GetResponseForControllerResultEvent"
                ],
                [
                    "string",
                    "kernel.view"
                ],
                [
                    "object",
                    "Symfony\\Component\\EventDispatcher\\EventDispatcher"
                ]
            ]
        },
        {
            "namespace": "Symfony\\Component\\EventDispatcher",
            "short_class": "EventDispatcher",
            "class": "Symfony\\Component\\EventDispatcher\\EventDispatcher",
            "type": "->",
            "function": "doDispatch",
            "file": "/var/www/webservice/vendor/symfony/event-dispatcher/EventDispatcher.php",
            "line": 44,
            "args": [
                [
                    "array",
                    [
                        [
                            "array",
                            [
                                [
                                    "object",
                                    "ApiPlatform\\Core\\Validator\\EventListener\\ValidateListener"
                                ],
                                [
                                    "string",
                                    "onKernelView"
                                ]
                            ]
                        ],
                        [
                            "array",
                            [
                                [
                                    "object",
                                    "ApiPlatform\\Core\\EventListener\\WriteListener"
                                ],
                                [
                                    "string",
                                    "onKernelView"
                                ]
                            ]
                        ],
                        [
                            "array",
                            [
                                [
                                    "object",
                                    "ApiPlatform\\Core\\EventListener\\SerializeListener"
                                ],
                                [
                                    "string",
                                    "onKernelView"
                                ]
                            ]
                        ],
                        [
                            "array",
                            [
                                [
                                    "object",
                                    "ApiPlatform\\Core\\EventListener\\RespondListener"
                                ],
                                [
                                    "string",
                                    "onKernelView"
                                ]
                            ]
                        ]
                    ]
                ],
                [
                    "string",
                    "kernel.view"
                ],
                [
                    "object",
                    "Symfony\\Component\\HttpKernel\\Event\\GetResponseForControllerResultEvent"
                ]
            ]
        },
        {
            "namespace": "Symfony\\Component\\EventDispatcher",
            "short_class": "EventDispatcher",
            "class": "Symfony\\Component\\EventDispatcher\\EventDispatcher",
            "type": "->",
            "function": "dispatch",
            "file": "/var/www/webservice/vendor/symfony/http-kernel/HttpKernel.php",
            "line": 154,
            "args": [
                [
                    "string",
                    "kernel.view"
                ],
                [
                    "object",
                    "Symfony\\Component\\HttpKernel\\Event\\GetResponseForControllerResultEvent"
                ]
            ]
        },
        {
            "namespace": "Symfony\\Component\\HttpKernel",
            "short_class": "HttpKernel",
            "class": "Symfony\\Component\\HttpKernel\\HttpKernel",
            "type": "->",
            "function": "handleRaw",
            "file": "/var/www/webservice/vendor/symfony/http-kernel/HttpKernel.php",
            "line": 66,
            "args": [
                [
                    "object",
                    "Symfony\\Component\\HttpFoundation\\Request"
                ],
                [
                    "integer",
                    1
                ]
            ]
        },
        {
            "namespace": "Symfony\\Component\\HttpKernel",
            "short_class": "HttpKernel",
            "class": "Symfony\\Component\\HttpKernel\\HttpKernel",
            "type": "->",
            "function": "handle",
            "file": "/var/www/webservice/vendor/symfony/http-kernel/Kernel.php",
            "line": 188,
            "args": [
                [
                    "object",
                    "Symfony\\Component\\HttpFoundation\\Request"
                ],
                [
                    "integer",
                    1
                ],
                [
                    "boolean",
                    true
                ]
            ]
        },
        {
            "namespace": "Symfony\\Component\\HttpKernel",
            "short_class": "Kernel",
            "class": "Symfony\\Component\\HttpKernel\\Kernel",
            "type": "->",
            "function": "handle",
            "file": "/var/www/webservice/public/index.php",
            "line": 37,
            "args": [
                [
                    "object",
                    "Symfony\\Component\\HttpFoundation\\Request"
                ]
            ]
        }
    ]
}

当然，我自己做了一些研究，并对这两个方面进行了研究：

• Unable to generate an IRI for the item of type
• api platform - Unable to generate an IRI for the item
• Request validator : validate an IRI
• https://github.com/api-platform/core/issues/830

因此，我添加了一个id (因为这个实体只用于post)，清除了现金，检查了getter和setter，但是都没有效果。

该实体当前的外观如下

/**
 * The register Entity
 *
 * @ApiResource(
 *      collectionOperations={
 *          "post"={"method"="POST", "path"="/register", "controller" = RegisterController::class}          
 *      }
 * )
 */

class Register implements \Serializable
{
    /**
     * The unique identifier of this user <br /><b>Schema:</b> <a href="http://schema.org/identifier">https://schema.org/identifier</a>
     *
     * @var integer
     *
     * @ApiProperty(iri="https://schema.org/identifier", identifier=true)
     */
    protected $id;  

    /**
     * The unique username of this user, used as a security credential alongside the password
     * 
     * @var string
     *
     */
    protected $username;

    /**
     * The non-unique e-mail address, used to contact the user on security issues
     * 
     * @var string
     *
     * @ApiProperty(iri="http://schema.org/email")
     */
    protected $email;

    /**
     * The non-unique password of this user, used as a security credential alongside the e-mail. Passwords are hashed in the database and can therefore never be rendered or viewed
     * 
     * @var string
     *
     */
    protected $password;

    /**
     * Serializing the user data that is set into the session
     */
    /** @see \Serializable::serialize() */
    public function serialize()
    {
        return serialize(array(
                $this->id,
                $this->username,
                $this->password,
                $this->email
        ));
    }

    /** @see \Serializable::unserialize() */
    public function unserialize($serialized)
    {
        list (
                $this->id,
                $this->username,
                $this->password,
                $this->email,
                ) = unserialize($serialized);
    }


    /**
     * Get id.
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Get id.
     *
     * @return User
     */
    public function setId($id)
    {
        $this->id= $id;

        return $this;
    }   

    /**
     * Set username
     *
     * @param string $username
     *
     * @return User
     */
    public function setUsername($username)
    {
        $this->username = $username;

        return $this;
    }

    public function getUsername()
    {
        return $this->username;
    }

    /**
     * Set password
     *
     * @param string $password
     *
     * @return User
     */
    public function setPassword($password)
    {
        $this->password = $password;

        return $this;
    }

    public function getPassword()
    {
        return $this->password;
    }


    /**
     * Set email.
     *
     * @param string $email
     *
     * @return User
     */
    public function setEmail($email)
    {
        $this->email = $email;

        return $this;
    }

    /**
     * Get email.
     *
     * @return string
     */
    public function getEmail()
    {
        return $this->email;
    }
}

控制器(尚未完全完成，但试图先解决这个问题)：

/**
 * Register controller
 *
 * @category   Controller
 * @package    XXX\UserBundle
 * @subpackage Controller
 *
 */

namespace App\XXX\UserBundle\Controller;


use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use App\XXX\UserBundle\Service\UserService;
use App\XXX\UserBundle\Entity\User;
use App\XXX\UserBundle\Entity\Register;

class RegisterController extends Controller
{
    private $userService;

    public function __construct(UserService $userService)
    {
        $this->userService= $userService;
    }

    public function __invoke(Register $data): Register
    {
        //$this->myService->doSomething($data);

        /*
        $user = $this->userService->register($data);

        if($user){
            //  $token = JWTManager::create($user)

            // voorbeeld

            // return serialized token
            // @var JWTManager $jwtManager 
            $jwtManager = $this->get('lexik_jwt_authentication.jwt_manager');
            $jwt = $jwtManager->create($user);
            $response = new JsonResponse();
            $response->setData(array('token' => $jwt));
            return $response;
        }
         */
        return $data;
    }


}

最后但并非最不重要的配置/路由/api_platform.yaml

api_platform:
    resource: .
    type: api_platform
    prefix: /api


user_register:
    path: '/api/register'
    methods:  ['POST']
    defaults:
        _controller: '\App\XXX\UserBundle\RegisterController::class'
        _api_resource_class: 'App\XXX\UserBundle\Entity\Register'
        _api_item_operation_name: 'register'

user_reminder:
    path: '/api/reset'
    methods:  ['POST']
    defaults:
        _controller: '\App\XXX\UserBundle\ResetController::class'
        _api_resource_class: 'App\XXX\UserBundle\Entity\Reset'
        _api_item_operation_name: 'rest'

user_login:
    path: '/api/login'
    methods:  ['POST']
    defaults:
        _controller: '\App\XXX\UserBundle\LoginController::class'
        _api_resource_class: 'App\XXX\UserBundle\Entity\Login'
        _api_item_operation_name: 'login'

我可能忽略了一些基本的东西，但我已经花了好几个小时在上面，似乎无法让它起作用。

--更新--我把所有的东西都改回了basic (用于测试和错误搜索)，它就不会飞了。增加了get/set，甚至公开了ID，这是行不通的。甚至下面这个简单的类也给我带来了IRI错误。所以基本上，我所尝试的不是ORM对象的所有东西都失败了。

use ApiPlatform\Core\Annotation\ApiProperty;
use ApiPlatform\Core\Annotation\ApiResource;

/**
 * The user Entity
 *
 * @ApiResource(
 *      itemOperations={
 *          "get"={"method"="GET"},
 *      },
 *      collectionOperations={
 *          "get"={"method"="GET"},
 *          "register"={"route_name"="register_register"},
 *      },
 * )
 */

class Register 
{
    /**
     * The unique identifier of this user <br /><b>Schema:</b> <a href="http://schema.org/identifier">https://schema.org/identifier</a>
     * 
     * @var integer
     *
     * @ApiProperty(identifier=true)
     */
    public  $id;    


    /**
     * Get id.
     *
     * @return int
     */
    public function setId($id)
    {
        $this->id = $id;

        return $this;
    }


    /**
     * Get id.
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }
}

Answer 1

你看过这个线程api platform - Unable to generate an IRI for the item吗？

通常，当无法访问属性Id时，会发生此错误。

Answer 2

我是api平台的新手，也有过同样的问题。下面的解决方案对我有效。将normalization_context添加到collectionOperations注释部分中的post方法中。

使用您的第一个注册类，您将拥有：

/**
     * The register Entity
     *
     * @ApiResource(
     *      collectionOperations={
     *          "post"=
     *           {
     *              "method"="POST",
     *              "path"="/register",
     *              "controller" = RegisterController::class,
     *              "normalization_context"={"groups"={"common:read"}}
     *           }          
     *      }
     * )
     */

    class Register implements \Serializable
    {

然后将相同的组放在您希望返回的字段/属性之上。继续上面的Register :每个属性上面添加的值是@Groups("common:read")：

/**
     * The unique identifier of this user <br /><b>Schema:</b> <a href="http://schema.org/identifier">https://schema.org/identifier</a>
     *
     * @var integer
     *
     * @Groups("common:read")
     *
     * @ApiProperty(iri="https://schema.org/identifier", identifier=true)
     */
    protected $id;  

    /**
     * The unique username of this user, used as a security credential alongside the password
     * 
     * @var string
     *
     * @Groups("common:read")
     *
     */
    protected $username;

    /**
     * The non-unique e-mail address, used to contact the user on security issues
     * 
     * @var string
     *
     * @Groups("common:read")
     *
     * @ApiProperty(iri="http://schema.org/email")
     */
    protected $email;