Dubbo-js, using Node.js to embrace the Dubbo ecosystem. See this Demo to find how intelligent this project is.
- 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
yarn add dubbo2.js
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/com/alibaba/dubbo/demo/BasicTypeProvider';
import {DemoProvider} from './providers/com/alibaba/dubbo/demo/DemoProvider';
import {ErrorProvider} from './providers/com/alibaba/dubbo/demo/ErrorProvider';
export default {
BasicTypeProvider,
DemoProvider,
ErrorProvider,
};
// =============== dubbo.ts ========================
import {Dubbo} from 'dubbo2.js';
import service from './service';
// create dubbo object
const dubbo = new Dubbo<typeof service>({
application: {name: 'node-dubbo'},
// zookeeper address
register: 'localhost:2181',
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 'dubbo2.js';
const demoProvider = dubbo =>
dubbo.proxyService({
dubboInterface: 'com.alibaba.dubbo.demo.DemoProvider',
version: '1.0.0',
methods: {
sayHello(name) {
return [java.String(name)];
},
echo() {},
test() {},
getUserInfo() {
return [
java.combine('com.alibaba.dubbo.demo.UserRequest', {
id: 1,
name: 'nodejs',
email: 'node@qianmi.com',
}),
];
},
},
});
// integrate the service in demoProvider with dubbo object constructor
const service = {
demoProvider,
};
const dubbo = new Dubbo<typeof service>({
// ....other parameters
service,
});If you'd like to contribute, it's a good start to follow below commands to get a locally runnable project.
# start zookeeper cluster
docker-compose up
# start java
cd java/dubbo-demo
mvn clean install
cd java/dubbo-demo/dubbo-demo-provider
mvn clean package
java -jar target/dubbo-demo-provider-2.6.3-jar-with-dependencies.jar
# build
make
# start node
cd example/hello-koa
npm run debug:start
# test /hello
curl http://localhost:3000/helloPlease follow the template for reporting any issues.
Dubbo-js will not work without:
Many thanks to their authors fengmk2 and dead-horse.
Apache Dubbo is under the Apache 2.0 license. See the LICENSE file for details.