Web
ResponseController in Go 1.20 for Flush and Deadlines
Use http.ResponseController from Go 1.20 to flush streaming responses, move write deadlines per handler and hijack connections, with a Flush demo.
3 min read
Tag
go 1 20
4 articles
Testing
Collect Coverage From Integration Tests and Whole Binaries
Build a Go program with go build -cover, run it several times with GOCOVERDIR, then merge the runs and read the percentages with go tool covdata.
6 min read
Concurrency
Context Cause and WithCancelCause Added in Go 1.20
Use context.WithCancelCause and context.Cause from Go 1.20 to record why a context ended, with timeout causes from Go 1.21 and a fan-out pattern.
4 min read
Basics
Join Multiple Errors in Go With errors Join From Go 1.20
Combine several errors into one with errors.Join in Go 1.20 and later: how it prints, how Is and As search it, and how it handles nil values and cleanup.
4 min read