⚠️ Problem I Solved in a Production App In a live app, users were submitting the same request mul...⚠️ Problem I Solved in a Production App In a live app, users were submitting the same request mul...
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In a live app, users were submitting the same request multiple times due to slow network responses.
This resulted in duplicate orders and inconsistent data.
✅ Solution I Implemented
I solved this by:
• Disabling actions after the first tap in Flutter
• Adding request validation on the Node.js backend
• Using Firebase to confirm transaction state in real time
🎯 Result
✔ No duplicate requests
✔ Clean and consistent data
✔ Better user trust
💡 Lesson: Never trust the client alone — always protect logic at the backend.
Huge congratulations on hitting the $10k milestone! 🚀 Truly inspiring to see what’s possible on Contra.
I joined Contra just about a month ago as a full-stack developer. I’ve set up my services and published a few case studies, but I'm constantly learning how to optimize my presence here.
If you could look back at your early days, what’s the #1 thing you did that moved the needle for your profile visibility and landing initial inbound clients?
I joined Contra a while ago without really knowing what to expect, and it’s been really nice to see it gradually become a place where I’ve met great clients and worked on projects I genuinely love.