replay functionality is not working - Platform events

I am trying to subscribe to a platform event in salesforce and it works fine - except ability to replay events -either from a specific replayId or from the earliest available (-2). Below is the code that I am using - which is taken from a sample code provided in a salesforce doc but is not working - any help would be greatly appreciated.

`org.authenticate({ username: USERNAME, password: PASSWORD,securityToken: SECURITY_TOKEN }, function(err, oauth) { if(err) return console.log("Error authenticating to Salesforce, " + err); var client = org.createStreamClient();

	    REPLAY_ID = -2;
	    console.log("Latest REPLAY_ID - ", REPLAY_ID);			
	  }
	});
	
	
	var accs = client.subscribe({topic:TOPIC, isEvent:true, **retry: -2**});`

I have also tried using “replayId” and “replayFrom” instead of retry but still no good. I am running this code from AWS Lambda - Node JS .

[hassanazharkhan]

This workaround also works for me, thanks @Alasano ! & @karoldylewski Finally I ended up with below code and its working fine with typescript.

import * as nforce from 'nforce'
import * as config from 'config'
import oAuth from '../types/oAuth'

class SalesforcePlatformEvents {
  private organization: any;
  constructor() {
    this.organization = nforce.createConnection({
      clientId: config.get('app.nforceKeys.clientId'),
      clientSecret: config.get('app.nforceKeys.clientSecret'),
      redirectUri: config.get('app.nforceKeys.redirectUri'),
      environment: config.get('app.nforceKeys.environment'),
      apiVersion: 'v44.0',
    })
  }

  public startEventListner() {
    const self = this.organization
    self.authenticate({
      username: config.get('app.nforceCredentials.user'),
      password: config.get('app.nforceCredentials.pass'),
    },
    function(err: any, oauth: oAuth) {
      if (err) return console.log(err)
      if (!err) console.log('*** Successfully connected to Salesforce ***')

      const client = self.createStreamClient({oauth})
      const sub = client.subscribe({topic: config.get('app.nforceTopic.topic')})

      client.on('connect', function() {
        console.log('*** Streaming client transport: UP ***')
      })

      client.on('disconnect', function(data: any) {
        console.log('*** Streaming disconnect : ' + data.reason)
        console.log('*** Disconnect data', data)
      })

      sub.on('connect', function() {
        console.log('*** Connected to topic: ' + sub.getTopic())
      })

      sub.on('error', function(error: Error) {
        console.log('*** Error: ' + error)
        sub.cancel()
        client.disconnect()
      })

      sub.on('data', function(data: any) {
        console.log('Data: ', data)
        console.log('Current replay id: ' + sub.getReplayId())
      })
    })
  }
}

export default SalesforcePlatformEvents

[Alasano]

Not 100% related but digging through here did allow me to make my pushtopic work in 1.12.2

Connecting in single mode as described in the doc I was getting this error

"400::The replayId for channel {/topic/mypushtopic} wasn't found using the " +
    'provided replay ID map {{}}. Ensure that the channel name you provided in ' +
    'the replay map is valid and matches the channel name used for subscribing.'

I replaced the fdcstream.js in the 1.12.2 release with the one from the streaming-2.0 branch and changed the way I subscribe to the pushtopic (passing in /topic/mypushtopic instead of just the topic name, found here https://github.com/kevinohara80/nforce/blob/streaming-2.0/examples/stream.js)

With that I’m able to connect succesfully for the moment. Looking forward to the full 2.0 release, especially the typescript part! Nice work @kevinohara80