Laravel guzzle post-запрос для создания функции не работает (400 Bad Request)

Я пытаюсь отправить запрос POST с данными формы (приложение Laravel) в Java Spring rest api (http: // локальный: 8000 / API / устройства / createDevice).

Но я получил ошибку (400 Bad Request). С POSTMAN все работает отлично, но не с Guzzle. Как решить эту проблему?

Изображения из Почтальона Почтальон Тело почтальона

Изображение заголовка почтальона

Изображение ошибки: ошибка

С dd: функция dd

Контроллер Laravel

public function deviceCreate(Request $request){



    $deviceIp= $request->input('deviceIp');
    $devicePort= $request->input('devicePort');
    $deviceFrequencyCollection= $request->input('deviceFrequencyCollection');
    $deviceFrequencyUpload= $request->input('deviceFrequencyUpload');
    $serverName= $request->input('serverName');
    $serverAddress= $request->input('serverAddress');
    $PortServer= $request->input('PortServer');

try{
$device= new Client([
    'headers' => [ 'Content-Type' => 'application/json' ]
]);

      $requirement= $device->post( 'http://localhost:8000/api/devices/createDevice', 
        ['json' =>json_encode(
          [
              'deviceIp' => $deviceIp,
              'devicePort' => $devicePort,
              'deviceFrequencyCollection' => $deviceFrequencyCollection,
              'deviceFrequencyUpload' => $deviceFrequencyUpload,
              "deviceStatus" => "false",
              'serverName' => $serverName,
              'PortServer' => $PortServer

          ]   )
       ]
    );
     $answer= $device->send($requirement);

      } catch (RequestException $e) {
         dd($e->getRequest());
        } 


    return redirect()->route('graph.home')->with('info', 'Success ');
  }




 }``

Client Controller.java (весенний контроллер)

/* For client registration at the point of the client installation */

    @RequestMapping(value = "/clients/createClient", method = RequestMethod.POST)
    public ResponseEntity<?> createClient(@RequestBody ClientDto clientDto) {

       Long id = clientService.createClient(clientDto);

        return new ResponseEntity<Long>(id, HttpStatus.OK);
    }

Client.java (модель Spring)

public class Client {

    @Id
    @GeneratedValue
    @Column(name = "client_id")
    private Long clientId;

    @NotNull
    @Column(unique = true)
    private String clientAllias;

    @NotNull
    private String clientIp;

    @NotNull
    private String clientPort;

    @NotNull
    private Double dataCollectionFrequency;

    @NotNull
    private Double dataUploadFrequency;

    @NotNull
    private Boolean isClientAvailable;

    @NotNull
    private String serverAllias;

    @NotNull
    private String serverIp;

    @NotNull
    private String serverPort;

    @OneToMany
    @JoinColumn(name = "client_id")
    private List<ClientData> clientData = new ArrayList<ClientData>();

    public Client() {
    }


    public Client(ClientDto clientDto) {
        super();
        this.clientAllias = clientDto.getClientAllias();
        this.clientIp = clientDto.getClientIp();
        this.clientPort = clientDto.getClientPort();
        this.dataCollectionFrequency = clientDto.getDataCollectionFrequency();
        this.dataUploadFrequency = clientDto.getDataUploadFrequency();
        this.isClientAvailable = clientDto.getIsClientAvailable();
        this.serverAllias = clientDto.getServerAllias();
        this.serverIp = clientDto.getServerIp();
        this.serverPort = clientDto.getServerPort();
    }

        public Long getClientId() {
            return clientId;
        }

        public void setClientId(Long clientId) {
            this.clientId = clientId;
        }

        public String getClientAllias() {
            return clientAllias;
        }

        public void setClientAllias(String clientAllias) {
            this.clientAllias = clientAllias;
        }

        public String getClientIp() {
            return clientIp;
        }

        public void setClientIp(String clientIp) {
            this.clientIp = clientIp;
        }

        public String getClientPort() {
            return clientPort;
        }

        public void setClientPort(String clientPort) {
            this.clientPort = clientPort;
        }

        public Double getDataCollectionFrequency() {
            return dataCollectionFrequency;
        }

        public void setDataCollectionFrequency(Double dataCollectionFrequency) {
            this.dataCollectionFrequency = dataCollectionFrequency;
        }

        public Double getDataUploadFrequency() {
            return dataUploadFrequency;
        }

        public void setDataUploadFrequency(Double dataUploadFrequency) {
            this.dataUploadFrequency = dataUploadFrequency;
        }

        public Boolean getIsClientAvailable() {
            return isClientAvailable;
        }

        public void setIsClientAvailable(Boolean isClientAvailable) {
            this.isClientAvailable = isClientAvailable;
        }

        public String getServerAllias() {
            return serverAllias;
        }

        public void setServerAllias(String serverAllias) {
            this.serverAllias = serverAllias;
        }

        public String getServerIp() {
            return serverIp;
        }

        public void setServerIp(String serverIp) {
            this.serverIp = serverIp;
        }

        public String getServerPort() {
            return serverPort;
        }

        public void setServerPort(String serverPort) {
            this.serverPort = serverPort;
        }

        public List<ClientData> getClientData() {
            return clientData;
        }

        public void setClientData(List<ClientData> clientData) {
            this.clientData = clientData;
        }

    }