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You can learn Go's syntax in a weekend, but services that stay up and tools that behave in pipelines take habits the tutorials skip. This book shows you those habits through one running example: a small shop's stock service and its command-line client. You will set up modules with reproducible builds, design errors that carry context and are handled once, and run goroutines that are bounded, cancellable and race-free. You will build an HTTP server with sensible timeouts and graceful shutdown, test it with tables, fakes and httptest, measure with benchmarks and profiles, and ship small static binaries for other platforms. Every chapter ends with actions, and a Quick Reference gives checklists, a command cheat sheet and a troubleshooting table.
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