lightstreamer-jms-web-client

    3.0.0 • Public • Published

    Lightstreamer JMS Extender Web Client

    Overview

    The Lightstreamer JMS Extender Web Client enables any JavaScript application running inside the web browser to act as a JMS client, that is, ready to connect to a JMS broker via Lightstreamer JMS Extender.

    The library is designed to be as class-by-class and method-by-method equivalent to JMS API 2.0 as possible.

    Installation

    npm

    The library is available as npm package, so you can download and install it through:

    npm install lightstreamer-jms-web-client
    

    Then load it from local node_modules:

    <html>
    <head>
      <script src="./node_modules/lightstreamer-jms-web-client/dist/lightstreamer-jms.js"></script>
      ...
    </html>

    cdn

    The library is also available on unpkg, to which you can point directly in the script tag:

    <script src="https://unpkg.com/lightstreamer-jms-web-client@3.0.0/dist/lightstreamer-jms.js"></script>

    Development

    Open a session against Lightstreamer JMS Extender, create a Topic Connection and connect to the JMS broker:

    jms.TopicConnectionFactory.createTopicConnection("http://localhost:8080/", "ActiveMQ", null, null, {
      onConnectionCreated: function(conn) {
        var topicSession = conn.createSession(false, "PRE_ACK");
        .....
        conn.start();
      }
    });

    Create a Topic Subscription and send it to the broker:

    var topic = topicSession.createTopic("stocksTopic");
    var consumer = topicSession.createConsumer(topic, null);

    Listen for messages:

    consumer.setMessageListener({
      onMessage: function(message) {
        var feedMessage = message.getObject();
        var key = feedMessage.itemName;
        var values = feedMessage.currentValues;
        console.log(values["stock_name"] + ": " + values["last_price"]);
      }
    });

    Compatibility

    • Compatible with JMS Extender since 2.0.0.
    • Based on Lightstreamer SDK for Web Clients version 8.0.3 build 1800.
    • Compatible with code developed with the previous version.

    Changelog

    See detailed changes here.

    Documentation

    Install

    npm i lightstreamer-jms-web-client

    DownloadsWeekly Downloads

    2

    Version

    3.0.0

    License

    none

    Unpacked Size

    268 kB

    Total Files

    3

    Last publish

    Collaborators

    • lightstreamer