A small HTTP server, without a framework
Start with the standard library. Add a route, return JSON, and give every request a sensible time limit.
The notebook / Go
Go, one useful piece at a time
HTTP services, useful error messages, and tests that describe the behavior of your code.
3 min read
Errors that keep their context
Return useful errors from the place where something failed, and handle them where a decision can be made.
Test an HTTP handler without opening a port
Use httptest to verify the contract a caller sees: status, headers, and response data.