🔍 Overview
In modern applications, secure and seamless user onboarding is critical — especially when identity verification (KYC) is involved.
In this article, I’ll walk through how we integrated the uqudo SDK Flutter plugin into a FlutterFlow application using Custom Actions to enable a robust identity verification flow.
This solution leverages uqudo’s official Android and iOS SDKs to deliver a secure, scalable, and efficient KYC experience — particularly optimized for users across the Middle East & Africa.
🎯 Objective
The goal was to implement a reliable identity verification system in FlutterFlow that:
- Accelerates user onboarding
- Reduces manual verification efforts
- Seamlessly integrates into a no-code / low-code workflow
- Maintains high security and accuracy
🛠 Technology Stack
- FlutterFlow
- Custom Actions (Flutter code)
- uqudo SDK Flutter Plugin
- Android & iOS Native SDKs
- Device Camera (Front Camera)
🧩 Architecture & Implementation Approach
To integrate uqudo into FlutterFlow, we followed a hybrid approach:
- The uqudo Flutter plugin was added to the FlutterFlow project
- Custom Actions were used to bridge FlutterFlow UI with SDK functionality
- Platform-specific logic was handled in:
- android/ (native implementation)
ios/ (native implementation)
This approach allowed us to:Use advanced native SDK features
Keep FlutterFlow UI clean and manageable
Maintain flexibility for future enhancements
🔄 Verification Flow
1️⃣ Identity Document Scanning
We implemented document scanning for:
- Aadhaar Card
- PAN Card Using uqudo’s document verification capabilities, the app extracts and validates identity data efficiently.
2️⃣ Face Capture & Biometric Verification
- The device’s front camera is used to capture the user’s face
- Face matching is performed against the scanned document
This ensures:
- Authenticity
- Fraud prevention
- Real-time verification
3️⃣ Verification Result Handling
Clear outcomes are displayed directly in the UI:
- ✅ Face matched successfully
- ❌ Face mismatch detected This improves transparency and user trust during onboarding.
4️⃣ Error Handling & User Feedback
Robust error handling was implemented using Custom Actions to manage:
- Invalid document scans
- Face mismatch scenarios
- Camera permission issues
- SDK-related errors Providing clear feedback significantly improved the user experience.
✅ Outcome & Impact
Successfully implemented a production-ready KYC flow within FlutterFlow
Reduced onboarding friction with automation
Enabled seamless integration of native SDKs in a low-code environment
Improved user trust with real-time verification feedback
🚀 Key Learnings
FlutterFlow Custom Actions are powerful for integrating complex SDKs
Combining low-code UI with custom Flutter logic offers both speed and flexibility
Native SDK integration is achievable without compromising maintainability
Proper error handling is critical for user trust and retention
🔗 Conclusion
Integrating the uqudo SDK in FlutterFlow using Custom Actions proved to be an effective approach for building a secure and scalable identity verification system.
This method bridges the gap between low-code development and advanced native capabilities, enabling faster delivery without sacrificing control or performance.
✨ Final Thoughts
If you’re building a FlutterFlow app that requires KYC, identity verification, or onboarding automation, this approach can significantly reduce development complexity while ensuring a high-quality user experience.