Fix hang when request node server

Author: twose

examples/grpc/helloworld/.gitignore

@@ -1 +1,3 @@
-greeter_server
+greeter_client
+greeter_server
+node_modules

examples/grpc/helloworld/greeter_server.js

@@ -0,0 +1,51 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+var PROTO_PATH = __dirname + '../../../protos/helloworld.proto';
+
+var grpc = require('grpc');
+var protoLoader = require('@grpc/proto-loader');
+var packageDefinition = protoLoader.loadSync(
+    PROTO_PATH,
+    {keepCase: true,
+        longs: String,
+        enums: String,
+        defaults: true,
+        oneofs: true
+    });
+var hello_proto = grpc.loadPackageDefinition(packageDefinition).helloworld;
+
+/**
+ * Implements the SayHello RPC method.
+ */
+function sayHello(call, callback) {
+    callback(null, {message: 'Hello Node Server - ' + call.request.name});
+}
+
+/**
+ * Starts an RPC server that receives requests for the Greeter service at the
+ * sample server port
+ */
+function main() {
+    var server = new grpc.Server();
+    server.addService(hello_proto.Greeter.service, {sayHello: sayHello});
+    server.bind('0.0.0.0:50051', grpc.ServerCredentials.createInsecure());
+    server.start();
+}
+
+main();

examples/protos/helloworld.proto

@@ -0,0 +1,37 @@
+// Copyright 2015 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+option java_multiple_files = true;
+option java_package = "io.grpc.examples.helloworld";
+option java_outer_classname = "HelloWorldProto";
+
+package helloworld;
+
+// The greeting service definition.
+service Greeter {
+  // Sends a greeting
+  rpc SayHello (HelloRequest) returns (HelloReply) {}
+}
+
+// The request message containing the user's name.
+message HelloRequest {
+  string name = 1;
+}
+
+// The response message containing the greetings
+message HelloReply {
+  string message = 1;
+}

src/Grpc/Request.php

@@ -8,5 +8,9 @@
 
 class Request extends \Swoole\Http2\Request
 {
-    public $headers = ['content-type' => 'application/grpc'];
+    public $headers = [
+        'content-type' => 'application/grpc',
+        'te' => 'trailers',
+        'user-agent' => 'grpc-swoole',
+    ];
 }