npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

egg-sofa-rpc

v3.0.0

Published

SOFARPC Plugin for egg

Downloads

11

Readme

egg-sofa-rpc

NPM version build status Test coverage David deps Known Vulnerabilities npm download

SOFARPC plugin for egg framework

Install

$ npm i egg-sofa-rpc --save

Usage

Enable the plugin

Change ${app_root}/config/plugin.js to enable SOFARPC plugin:

exports.sofaRpc = {
  enable: true,
  package: 'egg-sofa-rpc',
};

RPC Service Discovery

By default, We use zookeeper for service discovery. Therefore you need to configure the zk address:

// ${app_root}/config/config.${env}.js
config.rpc = {
  registry: {
    address: '127.0.0.1:2181', // configure your real zk address
  },
};

We plan to provide more implementations of service discovery. And also you can implement it by yourself, you can follow this article

RPC Client

By using the plugin, you can call rpc services provided by other system.

1. Get the RPC Interface Definition

We use protobuf interface definition lanaguge to describe the RPC service. So you need to get the *.proto files and put them into ${app_root}/proto folder

2. Global RPC Client Configuration

Configure RPC Client information in ${app_root}/config/config.{env}.js:

// ${app_root}config/config.${env}.js
exports.rpc = {
  client: {
    responseTimeout: 3000,
  },
};
  • responseTimeout(optional): RPC timeout in milliseconds, default value is 3000

3. Configure the Interface in proxy.js

${app_root}/config/proxy.js is a very important config file for rpc client, you should configure the services you needed, then executing the egg-rpc-generator tool to generate the proxy files.

Let's see a simple example of proxy.js. It declare a interface named: com.alipay.sofa.rpc.test.ProtoService provided by sofarpc application

'use strict';

module.exports = {
  services: [{
    appName: 'sofarpc',
    api: {
      ProtoService: 'com.alipay.sofa.rpc.test.ProtoService',
    },
  }],
};

Refer this acticle for more details

4. Generate the Proxy

Run egg-rpc-generator to generate the proxy files. After running success, it will generate a file: ProtoService.js under ${app_root}/app/proxy

$ egg-rpc-generator

[EggRpcGenerator] framework: /egg-rpc-demo/node_modules/egg, baseDir: /egg-rpc-demo
[ProtoRPCPlugin] found "com.alipay.sofa.rpc.test.ProtoService" in proto file
[ProtoRPCPlugin] save all proto info into "/egg-rpc-demo/run/proto.json"

5. Call the Service

You can call the RPC service by using ctx.proxy.proxyName. The proxyName is key value of api object you configure in proxy.js. In our example, it's ProtoService, and proxyName using lower camelcase, so it's ctx.proxy.protoService

'use strict';

const Controller = require('egg').Controller;

class HomeController extends Controller {
  async index() {
    const { ctx } = this;
    const res = await ctx.proxy.protoService.echoObj({
      name: 'gxcsoccer',
	    group: 'A',
    });
    ctx.body = res;
  }
}

module.exports = HomeController;

As above, you can call remote service as a local method.

RPC Server

By using the plugin, you also can publish your own RPC service to other system.

1. Define the RPC Interface

Writing the *.proto files, and put them into ${app_root}/proto folder

# ProtoService.proto
syntax = "proto3";

package com.alipay.sofa.rpc.protobuf;
option java_multiple_files = true; // 可选
option java_outer_classname = "ProtoServiceModels"; // 可选

service ProtoService {
    rpc echoObj (EchoRequest) returns (EchoResponse) {}
}

message EchoRequest {
    string name = 1;
    Group group = 2;
}

message EchoResponse {
    int32 code = 1;
    string message = 2;
}

enum Group {
    A = 0;
    B = 1;
}

2. Global RPC Server Configuration

Configure RPC Server information in ${app_root}/config/config.{env}.js:

module.exports = {
	rpc: {
    server: {
      namespace: 'com.nodejs.rpc',
    },
	},
},
  • namespace(required): the default namespace of all rpc service
  • selfPublish(optional): whether every node process publish service independent, default is true
  • port(optional): the TCP port will be listen on
  • maxIdleTime(optional): server will disconnect the socket if idle for long time
  • responseTimeout(optional): Number of milliseconds to wait for a response to begin arriving back from the remote system after sending a request
  • codecType(optional): recommended serialization method,default is protobuf

3. Implemenation the RPC Interface

Put your implementation code under ${app_root}/app/rpc folder

// ${app_root}/app/rpc/ProtoService.js
exports.echoObj = async function(req) {
  return {
    code: 200,
    message: 'hello ' + req.name + ', you are in ' + req.group,
  };
};

4. RPC Unittest in Eggjs

'use strict';

const mm = require('egg-mock');

describe('test/index.test.js', () => {
  let app;
  before(async function() {
    app = mm.app({
      baseDir: 'apps/rpcserver',
    });
    await app.ready();
  });
  after(async function() {
    await app.close();
  });

  it('should invoke HelloService', done => {
    app.rpcRequest('com.alipay.nodejs.HelloService')
      .invoke('hello')
      .send([ 'gxcsoccer' ])
      .expect('hello gxcsoccer', done);
  });
});

For more details of app.rpcRequest, you can refer to this acticle

Docs

How to Contribute

Please let us know how can we help. Do check out issues for bug reports or suggestions first.

To become a contributor, please follow our contributing guide.

License

MIT