node-opcua-pubsub

installation

$ npm install @sterfive/node-opcua-pubsub-client
$ npm install @sterfive/node-opcua-pubsub-server

Features

Client

• Provide client extension to interact nicely with the Server/PublishSubscribe object
• Administration of a server publish&Subscribe object
• Connection, Published DataSet,WriterGroup, ReadGroup

Server

• Implements PublishSubscribe Object
• Add support to fully compliant PubSub support to your existing NodeOPCUA Server with a single line of code.
• MQTT-JSON transport
• MQTT connectors for generic broker, AWS, GoogleCloud or Azure.

node-opcua-webproxy

This premium modules allows you to execute OPCUA Client script from withing the Web Browser directly by using the same API as NodeOPCUA Client.

It is ideal to create HTML base application or Electron application.and simplify the

installation

$ npm install @sterfive/node-opcua-webproxy
$ npm install @sterfive/node-opcua-webproxy-server

Features

In the browser (Front End)

• It provides the OPCUAClient API inside a browser.
• The same code can be developed to run in NodeJS backend or inside the browser.
• The OPCUA commands are proxyed to a backend service.

Backend service

• The backend service performs the connection with distant OPCUA Server on behalf of the front end application.
• It provides a HTTP/REST API for transactional commands (read, write, browse, translateBrowsePathToNodeId, createSubscription, createMonitoredItem etc ... )
• It maintains the connection alive, regardless of the state of the browser
• It Provide WebSocket API for subscriptions and monitored Items

Availability

The node-opcua-webproxy module is available as a npm package with access to SourceCode, under Sterfive's Source Available licence.

Purchase

Contact Sterfive to get a quote for for a demo.

node-opcua-optimized-client

Dealing with a server specific limits can be a pain. @sterfive/node-opcua-optimized-client handles with the complexity for you.

installation

$ npm install @sterfive/node-opcua-optimized-client

Features

• Handle server limits & continuation points seamlessly
• Handle an internal command queue,
• Minimize number of command transaction (packing )
• Automatic pause when connection is lost
• Automatic retry of paused commands when connection is restore

examples

Only 1 Write command sent with 2 nodeToWrites

session = new ClientSessionOptimized(session);
session.write(nodeToWrite1).then((statusCode)=>{ /** */});
session.write(nodeToWrite2).then((statusCode)=>{ /** */});

node-opcua-gds

Full featured GDS (Global Discovery Server) toolbox for your OPCUA application, powered by NodeOPCUA.

npm install @sterfive/node-opcua-gds

import { GDSClient } from "@sterfive/node-opcua-gds"

const gdsClient = new GDSClient(client);
await gdsClient.revokeCertificate(...);
await gdsClient.createCerfificateSigningRequest(...);

react-ui-components

$ npm install @sterfive/react-ui-components