Swoole-src: Ask a question, Swoole intend to support gRPC PHP Server?

[eddycjy]

hello,

I heard that Swoole is doing PHP gRPC Server support normally. Is there any plan for this? If so, when is it expected?

thank you !

[twose]

grpc-client has released, the server is on the way (next version).

[eddycjy]

@twose When is the next version expected to be released?

[twose]

In fact, the current version has already supported gRPC on HTTP2, but more details haven't completed yet.
And we need to write a server side code generator. (use PHP, not swoole)

Swoole GRPC server

<?php
use Helloworld\HelloReply;
use Helloworld\HelloRequest;

require __DIR__ . '/../../../vendor/autoload.php';
require __DIR__ . '/../../include/functions.php';

$http = new swoole_http_server('0.0.0.0', 50051, SWOOLE_BASE);
$http->set([
    'log_level' => SWOOLE_LOG_INFO,
    'trace_flags' => 0,
    'worker_num' => 1,
    'open_http2_protocol' => true
]);
$http->on('workerStart', function (swoole_http_server $server) {
    echo "nghttp -v http://127.0.0.1:{$server->port}\n";
});
$http->on('request', function (swoole_http_request $request, swoole_http_response $response) use ($http) {
    /**@var $request_message HelloRequest */
    $request_message = Grpc\Parser::deserializeMessage([HelloRequest::class, null], $request->rawcontent());
    if ($request_message) {
        $response_message = new HelloReply();
        $response_message->setMessage('Hello ' . $request_message->getName());
        $response->header('content-type', 'application/grpc');
        $response->header('trailer','grpc-status, grpc-message');
        $headers = [
            "grpc-status" => "0",
            "grpc-message" => ""
        ];
        foreach ($headers as $header_name => $header_value) {
            $response->trailer($header_name, $header_value);
        }
        $response->end(Grpc\Parser::serializeMessage($response_message));
    } else {
        $response->end('failed');
    }
});
$http->start();

Swoole GRPC client

<?php

use Helloworld\GreeterClient;
use Helloworld\HelloRequest;

require __DIR__ . '/../../vendor/autoload.php';

$name = !empty($argv[1]) ? $argv[1] : 'Swoole';

go(function () use ($name) {
    $greeterClient = new GreeterClient('127.0.0.1:50051');
    $greeterClient->start();
    $request = new HelloRequest();
    $request->setName($name);
    list($reply, $status) = $greeterClient->SayHello($request);
    $message = $reply->getMessage();
    echo "{$message}\n";
    $greeterClient->close();
});

[eddycjy]

@twose I heard that you are developing gRPC Server with PHP. Is this the next version? Really exciting.

In addition, it is a bit cumbersome to use Swoole directly to do gRPC Server, and there is no complete code framework?

[twose]

@EDDYCJY 我有点看不懂你的英文, 能用中文沟通吗?

[eddycjy]

@twose 非常抱歉，是我后面把问题搞复杂了

现在主要就想请教 Swoole 开发组，在开发的基于 PHP 的 gRPC Server 大概什么时候释出？
是否有较具体点的时间，因为我公司这边在观望和等待

感谢

[twose]

@EDDYCJY
https://github.com/swoole/grpc-client
example中包含了服务端示例, 客户端已经给出完整的实现, 可以开箱即用, 服务端底层已经支持HTTP2, 使用时需要自己实现业务框架, 如路由等.

[eddycjy]

@twose 前面不是说有在实现基于 PHP 的 gRPC 服务端吗 🤔
example 里的是基于 Swoole 的 gRPC 服务端

[twose]

@EDDYCJY
https://github.com/swoole/grpc-client/blob/master/examples/grpc/greeter_server.php
Grpc的本质就是HTTP2+Protobuf, 底层只负责实现HTTP2, 已经提供了全套的协程客户端, 服务端需要和框架一起写, 已经提供了简单实现的demo.
你要的东西并不是Swoole这个网络引擎应该提供的, 你可能需要类似Tars或者Swoole的企业级服务框架这样的东西, 这些内容不在这个issue的讨论范围内.

[eddycjy]

@twose 了解，感谢您的解惑

[leocavalcante]

Hi folks, what is the current status?
I was planning to add this on Siler, but if Swoole officially supports this would be way more awesome.

[twose]

@leocavalcante Http2 server is available basically, Http2 client implements RFC more completely, but both of these are not the main content of our work...

[leocavalcante]

@twose thank you!