📝 **Question:** Your /charge API uses a balance column. Network blip causes a client retry; same user gets charged twice. Best preventive design?
📋 Pick the right answer.
💡 **Hint:** Re-read the theory above if unsure.
📝 **Question:** Your /charge API uses a balance column. Network blip causes a client retry; same user gets charged twice. Best preventive design?
📋 Pick the right answer.
💡 **Hint:** Re-read the theory above if unsure.
📣 Help someone learn PythonShare this lesson with a friend — the first 15 are free, no signup.Tweet