Class AuthFailure

Constructor for an auth failure detector extension

Based on new feature released with Salesforce Spring '18: https://releasenotes.docs.salesforce.com/en-us/spring18/release-notes/rn_messaging_cometd_auth_validation.htm?edition=&impact=

Example triggering error message:

{
  "ext":{
    "sfdc":{"failureReason":"401::Authentication invalid"},
    "replay":true},
  "advice":{"reconnect":"none"},
  "channel":"/meta/handshake",
  "error":"403::Handshake denied",
  "successful":false
}
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Example usage:

const jsforce = require('jsforce');
const { StreamingExtension } = require('jsforce/api/streaming');

const conn = new jsforce.Connection({ … });

const channel = "/event/My_Event__e";

// Exit the Node process when auth fails
const exitCallback = () => process.exit(1);
const authFailureExt = new StreamingExtension.AuthFailure(exitCallback);

const fayeClient = conn.streaming.createClient([ authFailureExt ]);

const subscription = fayeClient.subscribe(channel, data => {
  console.log('topic received data', data);
});

subscription.cancel();
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