In API 36 you could subscribe to a streaming topic (/systemTopic/Logging) for logs. As of API 37, that no longer seems to work.

How do you subscribe to the logging steaming topic in API 37+?

  • An interesting observation. Looking at the Developer Console in Spring 17, it is still using the /cometd/36.0 (Spring '16). Maybe something to do with the Platform Events (Beta). – Daniel Ballinger Mar 23 '17 at 23:01
  • I can confirm that using v37.0 onward doesn't work with that systemTopic. – Daniel Ballinger Mar 23 '17 at 23:28

Confirmation from twitter that they are making changes around supporting platform events in the future. Twitter Exchange:

Why would the #Salesforce Developer Console still be using v36 of cometD for systemTopics?

John Brock
#SafeHarbor internal teams are working on support for system topics for v37+ and yes, it's related to plat event beta

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    Quoted relevant content here so it's more permanent/accessible. Hope that's okay! – Adrian Larson Mar 24 '17 at 3:10
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    Thanks @AdrianLarson. I posted the answer via my mobile and was going to circle back to expand on it. Looks like you beat me to it :) – Daniel Ballinger Mar 24 '17 at 5:27

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