GopherCon 2020: Write Once, Use Many: A Handy Package to Call Internal HTTP APIs - Michael Richman

From a channel Lumen includes in full: Gopher Academy is the official GopherCon archive: full technical talks by Go team members and production engineers on the runtime, profiling, concurrency, tooling and systems built in Go.

A 33-minute video from Gopher Academy's catalogue; the title names its topic.

Video by Gopher Academy, played through YouTube's embedded player.