What I Learned
- HTTP webhooks push events to a URL you control; APIs are pull-based unless streaming.
- Verify signatures (e.g. HMAC) when consuming third-party webhooks.
- Idempotency keys help avoid duplicate side effects on retries.
What I Built
- Extended the Day 1 flow with an HTTP Request node hitting a JSON placeholder API.
- Stored responses in a simple Google Sheet via a manual export (no OAuth yet).
Problems I Faced
Occasional 429 Too Many Requests when testing too fast against the free API.
Solution / Fix
Added a Wait node (2s) and reduced loop iterations during development.
GitHub Repository
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Tomorrow Plan
Experiment with authenticated APIs and environment variables in n8n.