feat: Improve RPC communication based on HTTP/2

example/dubbo-http2-node-example/README.md

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+# 使用 Node.js 开发后端服务
+
+基于 Dubbo 定义的 Triple 协议，你可以轻松编写浏览器、gRPC 兼容的 RPC 服务，并让这些服务同时运行在 HTTP/1 和 HTTP/2 上。Dubbo Node.js SDK 支持使用 IDL 或编程语言特有的方式定义服务，并提供一套轻量的 API 来发布或调用这些服务。
+
+本示例演示了基于 Triple 协议的 RPC 通信模式，示例使用 Protocol Buffer 定义 RPC 服务，并演示了代码生成、服务发布和服务访问等过程。
+
+## <span id="precondition">前置条件</span>
+
+因为使用 Protocol Buffer 的原因，我们首先需要安装相关的代码生成工具，这包括 `@bufbuild/protoc-gen-es`、`@bufbuild/protobuf`、`@apachedubbo/protoc-gen-apache-dubbo-es`、`@apachedubbo/dubbo`。
+
+```Shell
+npm install @bufbuild/protoc-gen-es @bufbuild/protobuf @apachedubbo/protoc-gen-apache-dubbo-es @apachedubbo/dubbo
+```
+
+## <span id="defineService">定义服务</span>
+
+现在，使用 Protocol Buffer (IDL) 来定义一个 Dubbo 服务。
+
+创建目录，并生成文件
+
+```Shell
+mkdir -p proto && touch proto/example.proto
+```
+
+写入内容
+
+```Protobuf
+syntax = "proto3";
+
+package apache.dubbo.demo.example.v1;
+
+message SayRequest {
+  string sentence = 1;
+}
+
+message SayResponse {
+  string sentence = 1;
+}
+
+service ExampleService {
+  rpc Say(SayRequest) returns (SayResponse) {}
+}
+```
+
+这个文件声明了一个叫做 `ExampleService` 的服务，为这个服务定义了 `Say` 方法以及它的请求参数 `SayRequest` 和返回值 `SayResponse`。
+
+## <span id="generateCode">生成代码</span>
+
+创建 gen 目录，做为生成文件放置的目标目录
+
+```
+mkdir -p gen
+```
+
+运行以下命令，在 gen 目录下生成代码文件
+
+```Shell
+PATH=$PATH:$(pwd)/node_modules/.bin \
+  protoc -I proto \
+  --es_out gen \
+  --es_opt target=ts \
+  --apache-dubbo-es_out gen \
+  --apache-dubbo-es_opt target=ts \
+  example.proto
+```
+
+运行命令后，应该可以在目标目录中看到以下生成的文件:
+
+```Plain Text
+├── gen
+│   ├── example_dubbo.ts
+│   └── example_pb.ts
+├── proto
+│   └── example.proto
+```
+
+## <span id="implementService">实现服务</span>
+
+接下来我们就需要添加业务逻辑了，实现 ExampleService ，并将其注册到 DubboRouter 中。
+
+创建 dubbo.ts 文件
+
+```typescript
+import type { DubboRouter } from "@apachedubbo/dubbo";
+import { ExampleService } from "./gen/example_dubbo";
+
+export default (router: DubboRouter) =>
+  // registers apache.dubbo.demo.example.v1
+  router.service(ExampleService, {
+    // implements rpc Say
+    async say(req) {
+      return {
+        sentence: `You said: ${req.sentence}`,
+      };
+    },
+  }, { serviceGroup: 'dubbo', serviceVersion: '1.0.0' });
+```
+
+## <span id="startServer">启动 Server</span>
+
+Dubbo 服务可以嵌入到普通的 Node.js 服务器、Next.js、Express 或 Fastify 中。
+在这里我们将使用 Fastify，所以让我们安装 Fastify 以及我们为 Fastify 准备的插件。
+
+```Shell
+npm install fastify @apachedubbo/dubbo-fastify
+```
+
+创建 server.ts 文件，新建一个 Server，把上一步中实现的 `ExampleService` 注册给它。
+接下来就可以直接初始化和启动 Server 了，它将在指定的端口接收请求。
+
+```typescript
+import { fastify } from "fastify";
+import { fastifyDubboPlugin } from "@apachedubbo/dubbo-fastify";
+import routes from "./dubbo";
+
+async function main() {
+  const server = fastify();
+  await server.register(fastifyDubboPlugin, {
+    routes,
+  });
+  server.get("/", (_, reply) => {
+    reply.type("text/plain");
+    reply.send("Hello World!");
+  });
+  await server.listen({ host: "localhost", port: 8080 });
+  console.log("server is listening at", server.addresses());
+}
+
+void main();
+```
+
+最后，运行代码启动服务
+
+```Shell
+npx tsx server.ts
+```
+
+## <span id="accessService">访问服务</span>
+
+最简单方式是使用 HTTP/1.1 POST 请求访问服务，参数则作以标准 JSON 格式作为 HTTP 负载传递。如下是使用 cURL 命令的访问示例:
+
+```Shell
+curl \
+ --header 'Content-Type: application/json' \
+ --header 'TRI-Service-Version: 1.0.0' \
+ --header 'TRI-Service-group: dubbo' \
+ --data '{"sentence": "Hello World"}' \
+ http://localhost:8080/apache.dubbo.demo.example.v1.ExampleService/Say
+```
+
+也可以使用标准的 Dubbo client 请求服务，我们首先需要从生成代码即 dubbo-node 包中获取服务代理，为它指定 server 地址并初始化，之后就可以发起起 RPC 调用了。
+
+创建 client.ts 文件。
+
+```typescript
+import { createPromiseClient } from "@apachedubbo/dubbo";
+import { ExampleService } from "./gen/example_dubbo";
+import { createDubboTransport } from "@apachedubbo/dubbo-node";
+
+const transport = createDubboTransport({
+  baseUrl: "http://localhost:8080",
+  httpVersion: "1.1",
+});
+
+async function main() {
+  const client = createPromiseClient(ExampleService, transport, { serviceVersion: '1.0.0', serviceGroup: 'dubbo' });
+  const res = await client.say({ sentence: "Hello World" });
+  console.log(res);
+}
+void main();
+```
+
+运行客户端
+
+```Shell
+npx tsx client.ts
+```
+
+## 其他
+
+参考[开发运行在浏览器上的 web 应用](../dubbo-web-example/README.md)，了解如何开发能访问 Dubbo 后端服务的浏览器页面。

example/dubbo-http2-node-example/client.ts

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+import { createPromiseClient } from "@apachedubbo/dubbo";
+import { ExampleService } from "./gen/example_dubbo";
+import { stdin, stdout, env } from "process";
+import * as readline from "node:readline/promises";
+import { createDubboTransport } from "@apachedubbo/dubbo-node";
+
+const rl = readline.createInterface(stdin, stdout);
+
+let rejectUnauthorized = true;
+
+if (process.env.NODE_EXTRA_CA_CERTS == undefined) {
+  console.log(env.NODE_EXTRA_CA_CERTS);
+  rl.write("It appears that you haven't configured Node.js with your certificate authority for local development. This is okay; we'll bypass TLS errors in this example client. \n");
+  rejectUnauthorized = false;
+}
+
+
+const transport = createDubboTransport({
+  baseUrl: "https://localhost:8443",
+  httpVersion: "2",
+  nodeOptions: { rejectUnauthorized },
+});
+
+async function main() {
+  const client = createPromiseClient(ExampleService, transport, { serviceVersion: '1.0.0', serviceGroup: 'dubbo' });
+  const res = await client.say({ sentence: "Hello World" });
+  console.log(res);
+}
+void main();

example/dubbo-http2-node-example/dubbo.ts

@@ -0,0 +1,13 @@
+import type { DubboRouter } from "@apachedubbo/dubbo";
+import { ExampleService } from "./gen/example_dubbo";
+
+export default (router: DubboRouter) =>
+  // registers apache.dubbo.demo.example.v1
+  router.service(ExampleService, {
+    // implements rpc Say
+    async say(req) {
+      return {
+        sentence: `You said: ${req.sentence}`,
+      };
+    },
+  }, { serviceGroup: 'dubbo', serviceVersion: '1.0.0' });

example/dubbo-http2-node-example/gen/example_dubbo.ts

@@ -0,0 +1,26 @@
+// @generated by @apachedubbo/protoc-gen-apache-dubbo-es v3.0.0-alpha with parameter "target=ts"
+// @generated from file example.proto (package apache.dubbo.demo.example.v1, syntax proto3)
+/* eslint-disable */
+// @ts-nocheck
+
+import { SayRequest, SayResponse } from "./example_pb.js";
+import { MethodKind } from "@bufbuild/protobuf";
+
+/**
+ * @generated from service apache.dubbo.demo.example.v1.ExampleService
+ */
+export const ExampleService = {
+  typeName: "apache.dubbo.demo.example.v1.ExampleService",
+  methods: {
+    /**
+     * @generated from rpc apache.dubbo.demo.example.v1.ExampleService.Say
+     */
+    say: {
+      name: "Say",
+      I: SayRequest,
+      O: SayResponse,
+      kind: MethodKind.Unary,
+    },
+  }
+} as const;
+

example/dubbo-http2-node-example/gen/example_pb.ts

@@ -0,0 +1,82 @@
+// @generated by protoc-gen-es v1.3.0 with parameter "target=ts"
+// @generated from file example.proto (package apache.dubbo.demo.example.v1, syntax proto3)
+/* eslint-disable */
+// @ts-nocheck
+
+import type { BinaryReadOptions, FieldList, JsonReadOptions, JsonValue, PartialMessage, PlainMessage } from "@bufbuild/protobuf";
+import { Message, proto3 } from "@bufbuild/protobuf";
+
+/**
+ * @generated from message apache.dubbo.demo.example.v1.SayRequest
+ */
+export class SayRequest extends Message<SayRequest> {
+  /**
+   * @generated from field: string sentence = 1;
+   */
+  sentence = "";
+
+  constructor(data?: PartialMessage<SayRequest>) {
+    super();
+    proto3.util.initPartial(data, this);
+  }
+
+  static readonly runtime: typeof proto3 = proto3;
+  static readonly typeName = "apache.dubbo.demo.example.v1.SayRequest";
+  static readonly fields: FieldList = proto3.util.newFieldList(() => [
+    { no: 1, name: "sentence", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+  ]);
+
+  static fromBinary(bytes: Uint8Array, options?: Partial<BinaryReadOptions>): SayRequest {
+    return new SayRequest().fromBinary(bytes, options);
+  }
+
+  static fromJson(jsonValue: JsonValue, options?: Partial<JsonReadOptions>): SayRequest {
+    return new SayRequest().fromJson(jsonValue, options);
+  }
+
+  static fromJsonString(jsonString: string, options?: Partial<JsonReadOptions>): SayRequest {
+    return new SayRequest().fromJsonString(jsonString, options);
+  }
+
+  static equals(a: SayRequest | PlainMessage<SayRequest> | undefined, b: SayRequest | PlainMessage<SayRequest> | undefined): boolean {
+    return proto3.util.equals(SayRequest, a, b);
+  }
+}
+
+/**
+ * @generated from message apache.dubbo.demo.example.v1.SayResponse
+ */
+export class SayResponse extends Message<SayResponse> {
+  /**
+   * @generated from field: string sentence = 1;
+   */
+  sentence = "";
+
+  constructor(data?: PartialMessage<SayResponse>) {
+    super();
+    proto3.util.initPartial(data, this);
+  }
+
+  static readonly runtime: typeof proto3 = proto3;
+  static readonly typeName = "apache.dubbo.demo.example.v1.SayResponse";
+  static readonly fields: FieldList = proto3.util.newFieldList(() => [
+    { no: 1, name: "sentence", kind: "scalar", T: 9 /* ScalarType.STRING */ },
+  ]);
+
+  static fromBinary(bytes: Uint8Array, options?: Partial<BinaryReadOptions>): SayResponse {
+    return new SayResponse().fromBinary(bytes, options);
+  }
+
+  static fromJson(jsonValue: JsonValue, options?: Partial<JsonReadOptions>): SayResponse {
+    return new SayResponse().fromJson(jsonValue, options);
+  }
+
+  static fromJsonString(jsonString: string, options?: Partial<JsonReadOptions>): SayResponse {
+    return new SayResponse().fromJsonString(jsonString, options);
+  }
+
+  static equals(a: SayResponse | PlainMessage<SayResponse> | undefined, b: SayResponse | PlainMessage<SayResponse> | undefined): boolean {
+    return proto3.util.equals(SayResponse, a, b);
+  }
+}
+

example/dubbo-http2-node-example/localhost+1-key.pem

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+-----END PRIVATE KEY-----

example/dubbo-http2-node-example/localhost+1.pem

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