Jira Webhooks Skill

When to Use This Skill

• How do I receive Jira webhooks?
• How do I verify Jira webhook signatures?
• How do I handle jira:issue_created or jira:issue_updated events?
• Why is my Jira webhook signature verification failing?
• Understanding Jira event types and payloads

Verification (core)

Jira Cloud signs the raw request body with HMAC-SHA256 keyed on the secret you set when registering a dynamic/OAuth 2.0 webhook, and sends the digest in the X-Hub-Signature header using the WebSub method=signature format — i.e. sha256=<hex>. Verify the raw body before parsing JSON and compare timing-safe.

Only dynamic webhooks (registered via the REST API with a secret) are signed. Webhooks created in the Jira UI are not signed — they rely on HTTPS plus a hard-to-guess URL and an optional ?secret= query parameter. See references/verification.md.

Node:

const crypto = require('crypto');

function verifyJiraWebhook(rawBody, signatureHeader, secret) {
  const [method, sig] = (signatureHeader || '').split('=');
  if (method !== 'sha256' || !sig) return false;
  const expected = crypto.createHmac('sha256', secret).update(rawBody).digest('hex');
  try {
    return crypto.timingSafeEqual(Buffer.from(sig, 'hex'), Buffer.from(expected, 'hex'));
  } catch {
    return false; // length mismatch = invalid
  }
}

Python:

import hmac, hashlib

def verify_jira_webhook(raw_body: bytes, signature_header: str, secret: str) -> bool:
    method, _, sig = (signature_header or "").partition("=")
    if method != "sha256" or not sig:
        return False
    expected = hmac.new(secret.encode(), raw_body, hashlib.sha256).hexdigest()
    return hmac.compare_digest(sig, expected)

For complete handlers with route wiring, event dispatch, and tests, see:

• examples/express/
• examples/nextjs/
• examples/fastapi/

Common Event Types

Jira does not send an event-type header. The event name is in the JSON body under the webhookEvent field.

For the full event reference, see Jira webhook events.

Important Headers

Environment Variables

JIRA_WEBHOOK_SECRET=your_webhook_secret   # The `secret` set when registering the dynamic webhook

Local Development

# Start tunnel (no account needed)
npx hookdeck-cli listen 3000 jira --path /webhooks/jira

Reference Materials

• references/overview.md - Jira webhook concepts and common events
• references/setup.md - Registering webhooks via REST API and UI
• references/verification.md - Signature verification details and gotchas