Diagnostic report on UPark API Error 500, focusing on refund processing failures, TLS/SSL issues, and cloud-based solutions for Commercial-Kiosks.
Identify the failing endpoints to narrow down the issue.
Understanding the transaction volume helps assess server load.
Server logs provide valuable debugging information.
A 500 error indicates a server-side problem. API calls rely on TLS/SSL for secure communication, and errors can arise from improper certificate handling, protocol mismatches, or interrupted sessions. The API response is expected to be a JSON payload; inconsistencies in data formatting or unexpected data types during refund processing can trigger the error. Furthermore, cloud-based APIs are reliant on DNS resolution for service discovery. Problems with caching or DNS records can prevent proper function. The API utilizes tokens for authentication and authorization; token validation failures or expiration can manifest as 500 errors.
Implement comprehensive API monitoring and alerting to proactively detect and address performance bottlenecks or errors. Regularly review and optimize database queries and indexing. Maintain up-to-date TLS/SSL certificates. Ensure proper API token management and validation. Implement robust caching strategies to minimize database load.
A common cause of intermittent 500 errors related to TLS/SSL is incorrect date/time settings on the kiosk. Verify the kiosk's date and time are synchronized with a reliable NTP server.