Understanding Temenos Quantum Architecture
Microservices and Middleware Model
Quantum apps communicate with backends via adapters managed by the Quantum Fabric middleware. Data syncing, authentication, and orchestration logic are handled server-side, while the client UI layer consumes these services using native or JavaScript APIs.
Multichannel Deployment and Device Runtime
Quantum allows apps to be deployed as native Android/iOS, PWAs, or desktop apps. Different rendering engines per channel can cause feature parity issues or rendering bugs.
Common Kony (Quantum) Issues in App Development
1. Sync Service or Adapter Failures
Occurs when backend integration adapters (SOAP, REST, SAP) return unexpected payloads or time out.
Error: Adapter Invocation Failed - HTTP 500: Internal Server Error
- Check service definition JSON and ensure endpoint URLs are reachable.
- Enable debug mode in Quantum Fabric to capture full request/response logs.
2. UI Components Not Rendering on Certain Devices
Widget visibility or behavior may differ between Android, iOS, and web due to rendering engine inconsistencies.
3. Identity Service Authentication Errors
Misconfigured OAuth2 or SAML tokens, incorrect app IDs, or expired sessions can break login flows.
4. App Builds Failing in Visualizer
Build errors may stem from missing native SDKs, corrupted workspace metadata, or plugin version mismatches.
5. App Not Syncing or Data Not Persisting
Offline sync failures often result from unregistered objects, incorrect object mapping, or encryption token issues.
Diagnostics and Debugging Techniques
Use Quantum Fabric Console Logs
Inspect adapter, identity, and sync service logs in real-time. Enable debug tracing in the console or through runtime properties.
Run Device Debug Builds
Deploy debug builds to emulators or devices with verbose logging enabled. Use konylib.logger
for custom trace points in JavaScript.
Use Postman or Curl to Test Adapter APIs
Test backend services outside the app to confirm payload and response formats match expected structure.
Review Build Logs in Visualizer
Check the full build trace in the Kony Visualizer IDE and validate that all required SDK paths and plugins are correctly configured.
Step-by-Step Resolution Guide
1. Fix Adapter and Sync Errors
Verify endpoint configurations, credentials, and response schema. Use test invocation in Fabric Admin to simulate requests and view diagnostics.
2. Repair UI Widget Issues
Check widget visibility flags and anchoring rules. Ensure skins and breakpoints are consistent across devices and screen sizes.
3. Resolve Authentication Problems
Reconfigure Identity Provider (IdP) settings, verify redirect URIs, and regenerate client secrets if needed. Use Fabric’s built-in OAuth playground to test tokens.
4. Handle Build Failures
Clean workspace and reimport the project. Update Visualizer and CLI tools to match the backend Fabric version. Validate all external dependencies are installed (e.g., Android Studio, CocoaPods).
5. Address Offline Sync Failures
Check sync object registration and ensure correct metadata exists in the object service. Reinitialize encryption keys if tokens fail validation.
Best Practices for Stable Quantum Apps
- Use modular adapters and validate payload formats with Swagger or OpenAPI specs.
- Test UI widgets across all target channels to detect rendering inconsistencies early.
- Integrate logging with Fabric's custom metrics and analytics dashboards.
- Align Visualizer and Fabric versions to prevent incompatibilities.
- Use Fabric lifecycle events to handle session management, sync retries, and network transitions gracefully.
Conclusion
Kony (Temenos Quantum) provides a robust low-code platform for cross-channel enterprise apps, but developers must account for architectural intricacies, backend integration details, and platform-specific rendering behavior. By using built-in diagnostic tools, enforcing consistent adapter design, and standardizing build environments, teams can troubleshoot effectively and scale applications with greater resilience.
FAQs
1. Why is my adapter returning 500 errors?
Usually due to incorrect input schema, server unavailability, or missing credentials. Test using the Fabric console or Postman.
2. How can I debug sync failures in Quantum?
Enable debug logging in sync settings and verify object mapping and offline capabilities in the object service definition.
3. Why won’t my app build in Visualizer?
Check for missing SDKs or plugin mismatches. Clean the build cache and ensure platform tools (e.g., Gradle, Xcode) are up to date.
4. What causes widget inconsistencies across devices?
Differences in rendering engines, skin settings, or visibility logic. Use device previews and responsive breakpoints to test across form factors.
5. Can I customize authentication flows in Quantum?
Yes, by modifying identity service settings and using pre/post processors in Fabric. Custom login UIs can be built using JavaScript controllers.