course-challenge

Go HTTP middleware that rate limits by API token or client IP, with counters in Redis behind an interface.

Go post-grad challenge: HTTP server with context timeouts that fetches USD-BRL and persists to SQLite.

Single-binary HTTP load testing CLI in Go with bounded concurrency and a status-code report.

Go post-grad challenge: returns temperature in Celsius, Fahrenheit and Kelvin for a Brazilian CEP.

Go order service exposing the same use cases over REST, gRPC and GraphQL behind Clean Architecture.

Solution to John Smilga's React Course user challenge where the user can add and delete persons on the list

Go post-grad challenge: race two address APIs with goroutines and print whichever responds first.

Gym check-in REST API in TypeScript: geofenced check-ins, RBAC, and per-schema isolated e2e tests.

Two Go services with OpenTelemetry spans into Zipkin. Course challenge; known gaps listed in the README.