v2.0.0 - typescript edition

The new version of node-opcua is out. This version offers a extended Typescript support.

• Typescript

import { OPCUAServer } from "node-opcua";

(async function main() {
    try {
       const server = new OPCUAServer({
        });
        await server.start();
    }  catch (err) {
       console.log("Error : ", err);
    }
})();

• Async/await

All asynchronous api methods can now be used either as await/async method or as callback method.

import { OPCUAClient } from "node-opcua";
import * as async from "async";

(async function main() {
    const client = OCPUAClient.create();

    await client.connect();
    // ...
    await client.disconnect();
    ``` 
})();

or old callback style

import { OPCUAClient } from "node-opcua";
const client = OCPUAClient.create();

async.series([
   function (callback) {
        client.connect(callback);
   },
   function (callback) {
        client.disconnect(callback);
   }
], (err) { 
});

• Improvements:

  • better automatic client reconnection with subscription reconstruction
  • better support for continuous points in browse and read in crawler #563

• breaking changes

This version introduces a small number of breaking changes that will require adjustment in your code.
There are documented here : https://github.com/node-opcua/node-opcua/wiki/2.0.0-breaking-changes