Build a UPI Payment Parser in Python - Decode Any UPI Link

Ever wondered what's actually inside a UPI payment link? In this hands-on tutorial we build a complete UPI transaction parser in Python from scratch - using nothing but the standard library.

By the end you'll take any UPI link and pull out the payee, amount, and note, then validate it like a real payments app.

WHAT YOU'LL LEARN
- How a UPI link is really just a URL with query parameters
- Extracting payee, amount and note with urllib.parse in 3 lines
- Validating a VPA with a compiled regular expression
- Wrapping it all in a clean, reusable dataclass

ZERO SETUP - urllib, re and dataclasses all ship with Python. Follow along free on Replit.

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#python #pythontutorial #upi #fintech #coding

Видео Build a UPI Payment Parser in Python - Decode Any UPI Link канала PyTeach