If you have a fintech app with wallet withdrawals, try never to execute them immediately.
The right way is to store the transaction first in a queue table and let it pass through clear stages.
Execution must go through a queue tool like Redis to ensure sequence and prevent conflicts or double execution.
The idea is not to treat the transaction as a function that runs and finishes, but as an Event with a full lifecycle. This way, you control every detail and handle errors gracefully without affecting UX.
Benefits
- If the system has an issue, the user sees "Processing" instead of an error.
- If the bank account lacks funds at that moment, the transaction isn't lost; it waits in the queue.
- It gives you a chance to review transactions before execution if you detect suspicious activity.
This simple design approach drastically improves stability. In short: don't execute immediately. Let it journey through the queue first. You will realize the value when facing real production issues.
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Always treat money as a living entity, not a function to be executed.
KEYWORDS
#Fintech#Redis#Queue#Backend
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