Services, APIs, messaging and server-side runtimes.
We're replacing a cron-driven batch pipeline with an event-driven one. Producers are 30 microservices emitting order, inventory and shipment events. Peak load is around 100K events/sec, average closer to 15K. Consumers include a fraud scorer, a search indexer and an analytics…
Our mobile apps over-fetch heavily from a REST API designed for the web. We're also launching a partner API. One camp wants GraphQL for both; another wants REST for partners and a BFF for mobile. Concerns about GraphQL: HTTP caching, rate limiting by query cost, partner…
We have ~20 Go services talking JSON over HTTP. Payload serialization shows up in profiles and we've had several incidents caused by schema drift between services. gRPC fixes both on paper. Costs: tooling, debugging with curl, load balancer support for HTTP/2, and a learning…