Flutter Developer API for Promo-Code

Description

Flutter Developer – Promo-Code Integration
Environment Requirements
1. Xcode 14 only The project compiles with Xcode 14 and will fail on newer versions.
2. Physical iPhone • Model must be iPhone X (10) or newer, but strictly older than iPhone 16 • Acceptable devices: iPhone X, 11, 12, 13, 14, or 15 • Simulators are not supported
3. Fast setup A pre-made, tested script handles project installation. If you meet the version requirements, the app builds in minutes.
Scope of Work
Part 1 – Promo-Code Feature (Priority)
* Implement promo-code handling in Flutter for both guest and logged-in customers.* Backend API endpoints are live and verified; no Magento work is required.* See the attached PDF specification: 2025-06-23_Promo_Code_Implementation_Spec.pdf* Estimated effort: 3.5 – 5 hours
Files you will touch:* shopping_cart_api.dart* checkoutController.dart* giftcard_or_promocode.dart* (Optional display) cart_page.dart or checkout_summary.dart
POTENTIALLY Part 2 – Dart → Native Data Issue
* The app receives 14 data fields from the backend, but only 10 reach the native layer.* Find and fix the Dart → MethodChannel bug so all 14 fields are delivered on both iOS and Android.* Native modules are stable; the issue is almost certainly a small Dart-side formatting error.
Tech Stack
* Flutter 3.3.8* Dart 2.18.4
iOS* Xcode 14, Swift 5, minimum iOS 11, CocoaPods 1.11.0
Android* Min SDK 21, Target SDK 33, Build Tools 33.0.0, Gradle 7.4, Java 11
Key packages: GetX, Dio, Firebase Core/Auth, Sqflite, Shared Preferences, Camera, Url Launcher, Intl, ScreenUtil
How to Apply
Include all five points:
1. Mac model and macOS version2. iPhone model (must be X, 11, 12, 13, 14, or 15)3. Years of experience with Flutter and native development, plus one or two concrete examples4. MethodChannel experience (brief description)5. Availability (can you start right away?)
Deliver this task well and you will be first in line for the full app upgrade that follows.
PS!I iknow it is a micro project