Designing robust and predictable APIs with idempotencyNetworks are unreliable. We’ve all experienced trouble connecting to Wi-Fi, or had a phone call drop on us abruptly. The networks connecting our servers are, on average, more reliable than consumer-level last miles like cellular or home ISPs, but given enough information moving across the wire, they’re still going to fail in exotic ways. Outages, routing problems, and other intermittent failures m
