Diagnostic report for UPark API Error 500, analyzing potential differences between debit and credit card transactions. Focus on external factors.
Specific error codes can help narrow down the root cause.
Knowing the payment processors will allow targeted investigation into API compatibility.
Recent changes might indicate a hardware connection issue.
HTTP 500 errors generally indicate a server-side problem. In the context of a payment API, this can stem from issues within the UPark server infrastructure, communication problems between the UPark API and external payment processors, or data validation failures on the UPark side. Transaction type (debit/credit) should ideally be transparent to the API, but subtle differences in request handling or validation *could* trigger errors. Focus should be on external network connectivity and signal integrity.
The UPark API device operates on standard low voltage. Ensure the power cord is in good condition and properly grounded. Do not expose the device to excessive moisture. Prior to any inspection or cable management, disconnect the power cable from the device using Safe Handling practices. Do not attempt to open the device casing; doing so may void the warranty and compromise security features.
Regularly clean the external surfaces of the device with a dry, non-abrasive cloth. Inspect cables for wear and tear. Ensure adequate ventilation around the device. Implement cable strain relief to prevent damage to connectors. Monitor network performance proactively.
If the 500 errors are intermittent, try using a network packet analyzer (e.g., Wireshark) to capture network traffic between the UPark API device and the UPark server. This may reveal valuable clues about the cause of the errors. Install a ferrite choke on the ethernet cable close to the UPark API device to mitigate potential EMI from the environment.