همفکران فناوری شریف
1Introduction
Synchronous call chains let one slow service stall the whole system.
2Discussion
Services publish events such as "payment completed"; consumers process them independently.
Brokers like Kafka and RabbitMQ persist messages until processed, so nothing is lost during outages.
Idempotent consumers keyed by unique event IDs prevent duplicate payments.
3Conclusion
The outbox pattern keeps database changes and published events consistent; trade-offs include tracing and eventual consistency.
Sources
همفکران فناوری شریفThis article summarises the official sources cited, prepared by the Hamfekran Fanavari Sharif team for finance leaders.
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