Stage 1 · Lesson 6 of 8
Webhooks
A is a message an app sends to your web address the moment something happens, such as a payment going through or a form being submitted. Technically it is an sent to you. Webhooks are how work.
Your workflow gets its own unique URL. You paste that URL into the other app's settings. Each event then arrives as a JSON body.
Webhooks are faster and cheaper than , where your tool keeps asking "anything new?". But handle them with care. Reply quickly, expect the same event to arrive twice, and check the request really came from the sender. Before you build, use a tool like to see exactly what an app sends.
Common trapsharing a production webhook URL publicly, where anyone can post fake events to it.
A question to check yourself, an AI practice session and 2 cheat sheet entries come with the full roadmap. Unlock
Resources for this stage
Start with· follow one of these
- GuideFreeMDN: HTTP
Mozilla · Beginner
Read the overview, methods, status codes and headers pages: the HTTP every automation tool sits on
- GuideFreeJavaScript.info
Ilya Kantor
The JSON methods and objects chapters teach you to read and reshape the data each step passes on
Practise
Keep handy
Also worth your time
Status codes, pagination, idempotency and rate limits from the API side, so you know what to expect as a caller