Contact person: Flutter Promo Cashback Integration

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Location: Yadgir, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I need the promo-cashback wallet added to my existing Flutter app. All the API endpoints are ready—​including GET /api/v1/promo-caseback/get and /list—so the job is mostly about wiring them up, presenting the data cleanly inside the order summary, and making sure everything behaves the way users expect.

User experience, accurate calculations, and solid error handling are the top priorities. I already have a detailed Figma mockup that shows exactly where the wallet balance, available offers, and usage slider sit within the order flow. Cashback offers should appear only inside the order summary, never as pop-ups.

Core scope
• Consume the cashback and wallet endpoints, parse responses, and keep local state in sync.
• Show available promo cashback, let the shopper choose how much to apply (respecting any usage-percentage rules), and instantly update the final payable amount.
• Gracefully handle edge cases such as insufficient balance or an expired offer with clear, friendly messages.
• Follow the provided design pixel-perfectly and keep the layout responsive across phones and small tablets.
• Write clean Dart code with proper error handling so future maintenance is straightforward.

Deliverables
1. Updated Flutter screens and components tied into the existing checkout flow.
2. Service layer for all wallet / promo-cashback API calls.
3. State-management solution (use the same pattern already in the app—let me know if you need details).
4. Test build demonstrating accurate calculations and error states.

Once I can place an order in the test build, see the cashback applied correctly, and confirm the UI matches the mockup, the task will be considered complete." (client-provided description)