Apache Dubbo-js

Dubbo-js, using Node.js to embrace the Dubbo ecosystem. See this Demo to find how intelligent this project is.

Features

Various transport protocols (Hessian, JSON-RPC etc.) supports
Tracing (Runtime information, Call Stack)
Multiple registry centers (Zookeeper, Nacos, Redis) supports or connecting to services directly
Extensibility, inspired from Koa Middleware
Builtin reconnection strategy
Typescript type definitions
Tools to automatically translate Java interfaces to Typescript type definitions
Dubbox supports

Architecture

Getting Started

yarn add apache-dubbo-consumer

Usage

Below code snippet shows how to work with the typescript type definitions which automatically translated from Java interfaces.

// ===================== service.ts ==================
// generated by interpret tools
import { BasicTypeProvider } from './providers/org/apache/dubbo/demo/BasicTypeProvider'
import { DemoProvider } from './providers/org/apache/dubbo/demo/DemoProvider'
import { ErrorProvider } from './providers/org/apache/dubbo/demo/ErrorProvider'

export default {
  BasicTypeProvider,
  DemoProvider,
  ErrorProvider
}

// =============== dubbo.ts ========================
import { Dubbo, s } from 'apache-dubbo-consumer'
import service from './service'

// dubbo interface setting
const dubboSetting = s.Setting(
  s.service(
    [
      'org.apache.dubbo.demo.DemoProvider',
      'org.apache.dubbo.demo.ErrorProvider'
    ],
    { version: '1.0.0' }
  ),
  s.service('org.apache.dubbo.demo.BasicTypeProvider', { version: '2.0.0' })
)

// create dubbo object
const dubbo = new Dubbo<typeof service>({
  application: { name: 'dubbo-js' },
  // zookeeper address
  register: 'localhost:2181',
  dubboSetting,
  service
})

// main method
;(async () => {
  let { res, err } = await dubbo.service.DemoProvider.sayHello('node')
  // print {err: null, res:'hello node from dubbo service'}
  ;({ res, err } = await dubbo.service.DemoProvider.echo())
  // print {err: null, res: 'pang'}
  ;({ res, err } = await dubbo.service.DemoProvider.getUserInfo())
  // print {status: 'ok', info: { id: '1', name: 'test' }, err: null}
})()

The automatically translated typescript type definitions are not necessary, below code snippet demonstrates how to use dubbo-js without them.

// create the service to be injected
import { Dubbo } from 'apache-dubbo-consumer'

const demoProvider = (dubbo) =>
  dubbo.proxyService({
    dubboInterface: 'org.apache.dubbo.demo.DemoProvider',
    version: '1.0.0',
    methods: {
      sayHello(name) {
        return [java.String(name)]
      },

      echo() {},

      test() {},

      getUserInfo() {
        return [
          java.combine('org.apache.dubbo.demo.UserRequest', {
            id: 1,
            name: 'nodejs',
            email: 'node@test.com'
          })
        ]
      }
    }
  })

// integrate the service in demoProvider with dubbo object constructor
const service = {
  demoProvider
}

const dubbo = new Dubbo<typeof service>({
  // ....other parameters
  service
})

How to run a quick starter?

Make sure java, maven, docker, Node, Yarn is installed locally. If you'd like to contribute, it's a good start to follow below commands to get a locally runnable project.

# cd root dir
cd dubbo-js

# start java dubbo service
chmod 755 ./start_dubbo_service.sh
sh ./start_dubbo_service.sh

# build package module
make

# start node
cd example/hello-koa
# install node modules
yarn
# start web
yarn run debug:start
# test /hello
curl http://localhost:3000/hello

# or hello-egg example
cd example/hello-egg
yarn
yarn run dev
# test /hello
http://127.0.0.1:7001/hello

How to run all tests

cd dubbo-js
sh ./start_dubbo_service.sh
yarn
make
yarn run test

How to build dubbo-js module

git clone https://github.com/apache/dubbo-js.git
cd dubbo-js
npm install -g lerna
lerna bootstrap
make build-dubbo

Next steps

Guides

Reporting bugs

Please follow the template for reporting any issues.

Knowledge Sharing

2019-meetup by hufeng

Thanks

Dubbo-js will not work without:

Many thanks to their authors fengmk2 and dead-horse.

contact us

License

Apache Dubbo is under the Apache 2.0 license. See the LICENSE file for details.

penuel-leo/dubbo-js