

What does Backend mean?
Session 02: How to Call an API
You've been vibe-coding for a while now. Your AI writes a fetch() call, you paste it in, it works — and you move on. But what happens when it doesn't work? Do you know what you're actually sending?
This session is about pulling back the curtain on one of the most used — and least understood — parts of modern development: the API call.
What we'll cover:
What an API actually is and how it works (the mental model most people skip)
The anatomy of an HTTP request — URL, method, headers, body, and status codes
Auth and API keys — and why hardcoding secrets in your code is a ticking time bomb
How to read API documentation before you write a single line
What a JSON response looks like and how to navigate it
The second hour is a live vibe-coding session where you'll build a mini app hitting a real public API — and actually understand every line your AI generates.
No gatekeeping, no judgment. Just builders who want to know what their code is actually doing.
Who this is for: Anyone building with AI tools who wants to stop guessing and start understanding.
📍 Singapore · Virtual
🗓 30 May · 9PM – 10:30PM SGT