0.1.0 • Published 8 years ago
cometd-cjs v0.1.0
CometD library for CJS.
This is little more than taking the CometdD JavaScript library and making each component available via module.exports.
The org.cometd
namespace is not needed. Neither is jQuery!
However you need to set up the XHR yourself.
This is based on the CometD 3.0.3 JavaScript library.
Example
const { CometD, LongPollingTransport, Transport, bindReloadExtension } = require('cometd-cjs');
// You need to implement the XHR for the transports.
function LongPoller() {
const transport = Transport.derive(new LongPollingTransport());
transport.xhrSend = packet => {
const xhr = new XMLHttpRequest();
const data = JSON.parse(packet.body);
xhr.open('post', packet.url);
xhr.setRequestHeader('Content-Type', 'application/json;charset=UTF-8');
xhr.onreadystatechange = () => {
if (xhr.readyState === 4) {
if (xhr.status === 200) {
packet.onSuccess(xhr.responseText);
} else {
packet.onError(xhr.statusText, xhr.response);
}
}
};
xhr.send(JSON.stringify(data));
};
return transport;
}
const cometd = new CometD();
// The bindX functions return the "org" object with the given extension "bound".
const { ReloadExtension } = bindReloadExension();
cometd.registerTransport('long-polling', new LongPoller());
cometd.registerExtension('reload', new ReloadExtension());
cometd.init('<somewhere>/cometd');
cometd.addListener('/meta/connect', message => {
console.log(message);
});
References
cometd JavaScript library docs