Login request Laravel with JWT

UserController.php

// cadastrar usuário
public function register(Request $request){

	$json = $request->getContent();
	$params = json_decode($json);

	// instancia usuário
	$user = new User();

	$user->nome = $params->nome;
	$user->sobrenome = $params->sobrenome;
	$user->email = $params->email;
	

	// criptografa senha
	$user->senha = hash('sha256', $params->senha);

	// verifica se email e senha foram informados
	if((isset($user->email) && !is_null($user->email)) && (isset($user->senha) && !is_null($user->senha))){

		// busca contas duplicadas
		$isset_user = User::where('email', '=', $params->email)->first();
		
			if(count($isset_user) > 0){
				$data = array(
					'status' => 'error',
					'code' => 400,
					'message' => 'Usuário duplicado'
				);
			} else {
				$user->save();

				$data = array(
					'status' => 'success',
					'code' => 200,
					'message' => 'Conta criada'
				);
			}
	}

	return response()->json($data, $data['code']);
}


public function login(Request $request){
	
	$jwtAuth = new JwtAuth();

	//Receber POST
	$json = $request->input('json', null);
	$params = json_decode($json);

	$email = (!is_null($json) && isset($request->email)) ? $request->email : null; 
	$password = (!is_null($json) && isset($request->password)) ? $request->password : null;
	$getToken = (!is_null($json) && isset($request->gettoken)) ? $request->gettoken : null;

	//Criptografar a senha 
	$pwd = hash('sha256', $password);
	
	if(!is_null($email) && !is_null($password) && ($getToken == null || $getToken == 'false')){
		
		$signup = $jwtAuth->signup($email, $pwd);

	}elseif($getToken != null){
		$signup = $jwtAuth->signup($email, $pwd, $getToken);
	}else{
		$signup = array(
			'status' => 'error',
			'code' => 400,
			'message' => 'Envie seus dados por POST'
		);
	}

	return response()->json($signup, $signup['code']);
}