Question about RTM.start vs rtm.connect

[RajeevLochan82]

We have a java application which listen to slack channels and post appropriate response. After receiving the email about depreciation of rtm.start function, I modified our slack application to use rtm.connect function. By making this change our application was working fine and I did not have to make any additional code changes. But starting 9/27 evening our application stopped working. It looks like the response provided by connect is completely different than start function. As our application was working fine, so I did not looked further in our code for any additional changes.

It looks like our application was parsing following additional data from rtm.start() JSON response. Can you please provide me a sample of old rtm.start() function and also suggest what alternative APIs we will need to use together with rtm.connect() function to get the following data?

Users Members Bots Channels Groups Ims Self Team url

[WilliamBergamin]

Hi @RajeevLochan82 thanks for writing in!

Here is the rtm.start() function as mentioned in the api documentation other Web API methods may be required to fetch all the data rtm start could obtain, for example Users can be fetched using users.list, groups usergroups.list, here are all the API methods available.

In terms of suggestions, I would recommend exploring Socket Mode as an alternative to RTM since RTM isn’t available for modern scoped apps anymore as mentioned in the notes of the RTM guide

[RajeevLochan82]

Hello,

Can I get sample JSON response of old rtm.start() function ?

[WilliamBergamin]

Here is a sample of what a payload for rtm.start() can look like, other samples can also be found in this folder

[seratch]

Checking this migration guide may be helpful too: https://api.slack.com/changelog/2021-10-rtm-start-to-stop#how__looking-for-conversations-users-preferences-and-plans

[RajeevLochan82]

Any limitations if we choose to develop this slack application in .Net vs Java ? Most of the example code seem to be provided in Java, so wondering if there are any limitations if we try to develop this slack application in .Net. Please let me know if there are any recommendations.

[WilliamBergamin]

We unfortunately do not officially support .Net if you want to use it you would have to use a third party open sourced library. I am unable to comment on the developer experience since I've never used .Net.

We develop and support the Bolt family of frameworks along with the SDKs found in the slackapi org, we also create and maintain sample projects that use theses frameworks and SDK's

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