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Articles tagged with #buildinpublic
In Part 12, I added resilience patterns — retry, timeout, circuit breaker. My backend could now survive Redis going down. But there was still a problem. When someone created an entry, I needed to notify an external service. A webhook: fire an HTTP PO...
In Part 11, I built a metrics system to see the big picture — request counts, latencies, error rates per endpoint. Then I looked at my main.go and realized something embarrassing. The JWT secret was hardcoded. The Redis address was a string literal. ...
In Part 10, I added structured logging and request IDs. I could now trace a single request through my entire backend — every log line tagged, searchable, debuggable in seconds. But I still couldn't answer basic questions: How many requests did /entr...
In Part 9, I Dockerized my backend and added database migrations. One command (docker compose up) now spins up Go + Postgres + Redis. Then I hit a bug. I sent a POST to /entries and got a 500 back. No idea why. I opened the logs: 2026/02/01 10:15:23 ...
In Part 8, I ripped out SQLite and switched to Postgres. The database was real now — but it still only ran on my laptop. Three terminal tabs. One for go run, one for Redis, one for Postgres. If I closed any of them, the whole thing fell over. It was ...
In Part 6, I added rate limiting and Redis. The API was getting real — pagination, caching, authentication, rate limiting. It handled traffic. It scaled horizontally. Then I pressed Ctrl+C and realized something: every request in flight just vanished...
