Tracing HTTP Requests with Go's net/http/httptrace - Blain Smith

The article explains Go's standard-library net/http/httptrace package for tracing outgoing HTTP requests.

It shows why tracing is attached through context.Context rather than a client interface, and how ClientTrace hooks observe DNS, connection, TLS, and response events.

The piece starts practical examples, including a curl-like command-line tracer and a reusable logging RoundTripper.

These hooks expose request internals and can power diagnostics and timing tools.