# grpc-demo

**Repository Path**: CNtinker/grpc-demo

## Basic Information

- **Project Name**: grpc-demo
- **Description**: grpc-demo，从零grpc
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 2
- **Created**: 2024-12-09
- **Last Updated**: 2024-12-10

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## 1、初始化项目

```
npm init -y
tsc --init
```

## 2、安装依赖

```
"@grpc/grpc-js": "^1.8.14",
"grpc-tools": "~1.11.3",
"grpc_tools_node_protoc_ts": "^5.3.3"
```

## 3、编写 proto 文件

新建 test.proto 文件并编写 rpc 接口和请求响应类型

```
syntax = "proto3";

package test;

service Test {
  rpc SayTest (TestReq) returns (TestRes) {}
}

message TestReq {
  string name = 1;
}

message TestRes {
  string name = 1;
}
```

## 4、增加编译 proto 文件命令

```
 "gen": "grpc_tools_node_protoc --js_out=import_style=commonjs,binary:./gen --grpc_out=grpc_js:./gen --ts_out=grpc_js:./gen ./test.proto",
```

## 5、新建 gen 文件夹，执行 yarn gen 生成 js 和 ts 文件

## 6、编写 Client 端和 Server 端代码

server

```
import { TestRes } from "./gen/test_pb";
import * as grpc from "@grpc/grpc-js";
import { TestService } from "./gen/test_grpc_pb";

const server = new grpc.Server();
server.addService(TestService, {
  sayTest(call: any, callback: any) {
    console.log(call.request.getName());
    const res = new TestRes();
    res.setName("Test " + call.request.getName());
    callback(null, res);
  },
});

server.bindAsync("localhost:3333", grpc.ServerCredentials.createInsecure(), () => {
  server.start();
  console.log("RPC服务启动");
});
```

client

```
import { TestClient } from "./gen/test_grpc_pb";
import * as grpc from "@grpc/grpc-js";
import { TestReq } from "./gen/test_pb";

const client = new TestClient("localhost:3333", grpc.credentials.createInsecure());
const testReq = new TestReq();
testReq.setName("client");
client.sayTest(testReq, (err, message) => {
  console.log(message.getName());
});
```

## 7、启动客户端和服务端（记得全局安装 ts-node）

```
ts-node ./server.ts
ts-node ./client.ts
```