Troubleshoot Moneris API webhook failure during user profile picture update, indicating a potential database lock issue. Diagnose and resolve the issue.
Examine the response payload for clues.
Knowing the database is crucial for specific debugging.
Verify the token hasn't expired or been revoked.
API webhooks rely on successful database transactions. A database lock can occur when multiple processes attempt to modify the same record simultaneously. This can stem from issues related to transaction isolation levels, long-running transactions, or deadlocks. API response codes (e.g., 500, 503) and JSON payloads provide diagnostic information. Consider TLS/SSL certificate validation as well. DNS resolution failures can also impact API availability, leading to perceived database locks. Expired API access tokens can cause authentication failures that might be misconstrued as database problems.
Moneris checkout API webhook failing to update user profile picture. Database record potentially locked, preventing successful write operation.
Ensure safe handling of the checkout terminal by avoiding cable strain. In dry environments, be aware of potential ESD (static discharge) when interacting with the touchscreen. Clean the touchscreen regularly with approved wipes to maintain hygiene.
Regularly review and optimize database queries and transactions. Implement proper error handling and retry mechanisms in the webhook handler. Monitor database performance metrics and proactively address any bottlenecks. Rotate and refresh API access tokens as needed.
Use a network traffic analyzer (e.g., Wireshark) to capture and inspect the API requests and responses. This can help identify issues with the request payload, response format, or TLS/SSL handshake. Verify the API access token validity by decoding it and inspecting its expiry timestamp.