Troubleshooting UPark API 500 errors possibly related to specific payment methods. Focus on cache, DNS, tokens, and TLS/SSL protocols for resilient unattended kiosks.
Identify payment methods that consistently trigger the errors.
Understanding the volume can help determine if resource constraints are a factor.
Detailed error messages provide clues about the root cause of the problem.
API interactions rely on successful TLS/SSL handshakes for secure communication. A 500 error indicates a server-side problem, potentially stemming from issues with request handling, data processing, or database interactions after the API receives the request. Payment processing often involves tokenization and verification against external payment gateways. Errors during this verification can trigger a 500 response. The API's ability to handle various JSON structures or data types associated with different payment methods can also lead to errors if parity isn't maintained. API caching mechanisms or DNS resolution errors may also indirectly contribute.
The system operates in an unattended public environment. All software updates and configurations must be performed remotely and securely to prevent unauthorized access or modification. The kiosk enclosure protects the internal system from weather, tampering, and electrostatic discharge. Any interruption to power should trigger an automated system restart to restore services.
Regularly update the UPark API software to incorporate the latest security patches and bug fixes. Implement comprehensive monitoring and alerting to detect and respond to API errors proactively. Perform routine security audits to identify and address potential vulnerabilities. Ensure a stable and resilient network infrastructure to minimize disruptions.
Implement circuit breaker patterns within the API code to prevent cascading failures when a payment gateway becomes unavailable. This will improve the resilience of the UPark API and reduce the likelihood of 500 errors. Also, check the API response times from the payment gateways. Slow responses could indicate network issues or gateway overload, contributing to 500 errors. Add retries with exponential backoff to handle transient network issues.