My goal: Integrate Slack with Retool workflow webhook Issue: Is it possible to very slack request signature as per slack documentation verifying-requests-from-slack ? Additional info: self hosted onprem 3.196.2

If anybody is interested and want to review the solution with 2 simple code blocks (could be just one). get the raw body and decode it const { Buffer } = require('buffer'); const decodedBody = Buffer.from(startTrigger.metadata.rawDataBase64, 'base64').toString('utf-8'); return decodedBody; Ve…

Verify slack request signature

💬 Workflows

dda May 21, 2025, 11:53pm 2

But I think I need the rawbody of a request and this could lead to this topic RawBody from Webhook is it possible to access the raw body?

Topic		Replies	Views
RawBody from Webhook 💬 Feature Requests	10	238	January 5, 2026
Ingesting slack message history 💬 App Building workflows , agents	4	52	June 29, 2026
Is it possible to access a Webhook's headers from Workflows? 💬 Workflows	12	2518	November 27, 2023
Handling view_submission payload from Slack view interaction 💬 Workflows slack	11	554	January 16, 2025
Workflows and self hosted have different behaviour when run by trigger and run manually 💬 Workflows slack	6	1153	September 11, 2023

Verify slack request signature

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