Slack API ➔ Vectorizer.AI Webhook Pipeline Specification Webhook Specification, Headers & Security

Technical Integration Summary

Technical guide for receiving and processing automated Slack API ➔ Vectorizer.AI Webhook Pipeline Specification event notifications. Follow these security guidelines to prevent unauthorized webhook calls.

Supported Events: message.new callback_query inline_query message.reaction

Authentication & Request Headers

Security validation specs for Slack API ➔ Vectorizer.AI Webhook Pipeline Specification endpoints:

Authorization: Bearer sec_live_0cc6dbf96ac45667

Signature Verification Implementations

Node.js (Express)

const crypto = require('crypto');
const expected = crypto.createHmac('sha256', secret).update(rawBody).digest('hex');
const isValid = crypto.timingSafeEqual(Buffer.from(expected), Buffer.from(signature));

Python (Flask / FastAPI)

import hmac, hashlib
expected = hmac.new(secret.encode(), raw_body, hashlib.sha256).hexdigest()
is_valid = hmac.compare_digest(expected, incoming_sig)

Sample Event Payload (message.new)

{
  "id": "evt_slack-to-vectorizer.html_27783",
  "event": "message.new",
  "created_at": 1789764056,
  "data": {
    "resource_id": "res_555",
    "status": "active"
  }
}

cURL Request Simulation

curl -X POST https://your-domain.com/webhook/slack-to-vectorizer.html \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sec_live_0cc6dbf96ac45667" \
  -d '{"id": "evt_slack-to-vectorizer.html_27783", "event": "message.new", "created_at": 1789764056, "data": {"resource_id": "res_555", "status": "active"}}'

HTTP Response Rules

Status Code	Status Meaning	Integration Action
`200 OK`	Success	Event payload validated and queued.
`400 Bad Request`	Malformed Payload	Check payload structure and JSON formatting.
`401 Unauthorized`	Signature Mismatch	Verify secret key and digest computation.
`500 Error`	Server Error	Triggers provider automated retry backoff.

Security Best Practices for Slack API ➔ Vectorizer.AI Webhook Pipeline Specification

Always process incoming events asynchronously using a message queue. Never perform long-running DB queries or external API calls synchronously within the HTTP response handler.

Frequently Asked Questions

How to handle duplicate Slack API ➔ Vectorizer.AI Webhook Pipeline Specification webhooks?

Store processed event IDs in an atomic storage like Redis with a set expiration. If an incoming ID exists, acknowledge with 200 OK immediately without re-triggering logic.

What is the response timeout for Slack API ➔ Vectorizer.AI Webhook Pipeline Specification webhooks?

Your endpoint must return an HTTP 2xx response within 2000ms. Offload heavy processing (email, DB writes) to an asynchronous task queue.

Why does signature validation fail on Express/Flask?

Your framework might be auto-parsing JSON. HMAC generation requires the exact raw byte buffer of the request body before JSON middleware alters keys or spacing.