What is the best way to incorporate an if-then structure in Pipedream for bi-directional Slack to WhatsApp integration?

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This topic was automatically generated from Slack. You can find the original thread here.

Hey guys, I’m new to Pipedream and trying to determine the best/proper way to do something here.

I’m trying to create a bi-directional integration from Slack to WhatsApp using ultramsg. It uses webhook for receiving WA messages and the ultramsg integration for sending WA messages. I have it working for one group/channel but am having trouble determining the proper way to integrate multiple groups. ultramsg forwards all incoming messages to a single webhook which fires a single trigger; how can I incorporate an if-then structure (or filter, custom code, etc.) in the action step so that I can send the message to different Slack channels depending on the webhook data body (i.e. who the message is from)?

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Check out the filter actions here (or search for “Filter” in the step selector when adding a new step) https://pipedream.com/apps/filter#popular-filter-actions

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Those let you define specific criteria for your workflow to check, and continue or end execution based on those criteria

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If those aren’t quite right you can also handle some of the filtering logic in a code step

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I see filter but it looks like only continue or end execution. I want to have basically a switch-case for webhook from data to decide which slack channel to send to. Do I have to write custom code or can this be achieved with filter and send_message_private_channel?

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i.e. Based on trigger data, do only one of several actions. Needs to be in a single workflow because ultramsg sends everything to one webhook

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Yea okay I gotcha. Sounds like a code step to handle the switch-case after the webhook trigger, and before the Slack Send Message action.

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If it makes anything easier, you could also do the filtering / switch-case logic in a code step, then kick off a separate workflow to handle separate logic, if that’s necesssary

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That’s a solid idea if needed but sounds like bloat to maintain each slack channel in its own workflow. I think best solution (if possible) is to have a code step that looks up the appropriate Slack channel based on the incoming webhook and then dynamically populate send_message_private_channel.Channel

is that possible?

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Yep totally. Will the Slack channel name/ID be returned directly in the webhook response? Or will you have to look that up elsewhere, based on some identified coming from the webhook?

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It will have to be looked up, I think a hardcoded table in the code step is sufficient for now

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Sounds good. And FYI if it makes sense you can also create a Data Store to provide that lookup table.

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This is great, thanks! Looking into using data stores now but I would want to associate one to one string-string records. Is data store only KV pairs and if I wanted to look up a key from a query with a value then I’d have to loop?

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I don’t totally follow — can you elaborate on your question? You can store any JSON-serializable data as a value for a Data Store record, so a single record could be an array of KVs if you want, or you can structure it as many records with a single KV pair each record.