Idempotency Keys for Money Movement: Preventing Double Charges
An idempotency key is a client-generated value that lets a payments API recognize a retry and replay the original result instead of charging twice.
System Design
Everything tagged System Design, newest first.
Tagged System Design
Go · Go in production
Go Microservices in Production: Lessons From Building a Distributed Platform From Scratch
Go microservices hold up when each service owns its data, every call has a timeout and a request is traceable end to end. Lessons from LodgeLink and 90POE.