PHP code example of yoanm / jsonrpc-server-sdk

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

yoanm / jsonrpc-server-sdk example snippets

use Yoanm\JsonRpcServer\Domain\JsonRpcMethodInterface;

class DummyMethod implements JsonRpcMethodInterface
{
    /**
     * {@inheritdoc}
     */
    public function apply(array $paramList = null)
    {
        // Handle the request
        ...
        // Then return a result
        return [
            'status' => 'done',
        ];
        // Or
        return null;
        // Or
        return 12345;
    }
}

use Yoanm\JsonRpcServer\Domain\JsonRpcMethodInterface;
use Yoanm\JsonRpcServer\Domain\JsonRpcMethodResolverInterface;

class ArrayMethodResolver implements JsonRpcMethodResolverInterface
{
    /** @var JsonRpcMethodInterface[] */
    private $methodList = [];

    /**
     * {@inheritdoc}
     */
    public function resolve(string $methodName) : ?JsonRpcMethodInterface
    {
        return array_key_exists($methodName, $this->methodList)
            ? $this->methodList[$methodName]
            : null
        ;
    }

    /**
     * @param JsonRpcMethodInterface $method
     * @param string                 $methodName
     */
    public function addMethod(JsonRpcMethodInterface $method, string $methodName)
    {
        $this->methodList[$methodName] = $method;
    }
}

use Yoanm\JsonRpcServer\App\Creator\ResponseCreator;
use Yoanm\JsonRpcServer\App\Handler\ExceptionHandler;
use Yoanm\JsonRpcServer\App\Handler\JsonRpcRequestHandler;
use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallDenormalizer;
use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallResponseNormalizer;
use Yoanm\JsonRpcServer\App\Serialization\JsonRpcCallSerializer;
use Yoanm\JsonRpcServer\App\Serialization\JsonRpcRequestDenormalizer;
use Yoanm\JsonRpcServer\App\Serialization\JsonRpcResponseErrorNormalizer;
use Yoanm\JsonRpcServer\App\Serialization\JsonRpcResponseNormalizer;
use Yoanm\JsonRpcServer\Infra\Endpoint\JsonRpcEndpoint;

$resolver = new ArrayMethodResolver();
$resolver->addMethod('dummy-method', new DummyMethod());

$jsonRpcSerializer = new JsonRpcCallSerializer(
    new JsonRpcCallDenormalizer(
        new JsonRpcRequestDenormalizer()
    ),
    new JsonRpcCallResponseNormalizer(
        new JsonRpcResponseNormalizer() 
        // Or `new JsonRpcResponseNormalizer(new JsonRpcResponseErrorNormalizer())` for debug purpose
        // To also dump arguments, be sure 'zend.exception_ignore_args' ini option is not at true/1
    )
);
$responseCreator = new ResponseCreator();
$requestHandler = new JsonRpcRequestHandler($resolver, $responseCreator);
$exceptionHandler = new ExceptionHandler($responseCreator);

$endpoint = new JsonRpcEndpoint($jsonRpcSerializer, $requestHandler, $exceptionHandler);

$requestString = <<<JSONRPC
{
    "jsonrpc": "2.0",
    "id": 1
    "method": "dummy-method"
}
JSONRPC;

$responseString = $endpoint->index($requestString);

use Yoanm\JsonRpcServer\Domain\Event\JsonRpcServerEvent;
use Yoanm\JsonRpcServer\Domain\JsonRpcServerDispatcherInterface;

/**
 * Class SimpleDispatcher
 */
class SimpleDispatcher implements JsonRpcServerDispatcherInterface
{
    /** @var callable[] */
    private $listenerList = [];

    /**
     * {@inheritdoc}
     */
    public function dispatchJsonRpcEvent(string $eventName, JsonRpcServerEvent $event = null) : void
    {
        if (!array_key_exists($eventName, $this->listenerList)) {
            return;
        }

        foreach ($this->listenerList[$eventName] as $listener) {
            $listener($event, $eventName);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function addJsonRpcListener(string $eventName, $listener) : void
    {
        $this->listenerList[$eventName][] = $listener;
    }
}

use Yoanm\JsonRpcServer\Domain\Event\Acknowledge\OnRequestReceivedEvent;
use Yoanm\JsonRpcServer\Domain\Event\Acknowledge\OnResponseSendingEvent;
use Yoanm\JsonRpcServer\Domain\Event\Action\OnMethodSuccessEvent;

$dispatcher = new SimpleDispatcher();

$listener = function ($event, $eventName) {
    echo sprintf(
        'Received %s with event class "%s"',
        $eventName,
        get_class($event)
    );
};

$dispatcher->addJsonRpcListener(OnRequestReceivedEvent::EVENT_NAME, $listener);
$dispatcher->addJsonRpcListener(OnResponseSendingEvent::EVENT_NAME, $listener);
$dispatcher->addJsonRpcListener(OnMethodSuccessEvent::EVENT_NAME, $listener);

$endpoint->setJsonRpcServerDispatcher($dispatcher);
$requestHandler->setJsonRpcServerDispatcher($dispatcher);
$exceptionHandler->setJsonRpcServerDispatcher($dispatcher);

use Yoanm\JsonRpcServer\Domain\JsonRpcMethodInterface;
use Yoanm\JsonRpcServer\Domain\JsonRpcMethodParamsValidatorInterface;
use Yoanm\JsonRpcServer\Domain\Model\JsonRpcRequest;

$validator = new class implements JsonRpcMethodParamsValidatorInterface
{
    public function validate(JsonRpcRequest $jsonRpcRequest, JsonRpcMethodInterface $method) : array
    {
        if (!(/** Skip unexpected method */)) {
            return [];
        }

        // Create your violations based on what you want
        $paramList = $jsonRpcRequest->getParamList();
        $violation = "???";

        return [$violation];
    }
};

$requestHandler->setMethodParamsValidator($validator);