Aspects of a good Go library

A short checklist of what I wish for in a good Go library, in no particular order. This is a companion to the effective go list, Go code review comments list, and Go proverbs list.

Go’s append is not always thread safe

Problem Example

I commonly see bugs appending to slices in Go in a way that is not thread safe. A simple example is the unit tests below. This test has two goroutines append to the same slice. If you run this test with the -race…

Using Go 1.10 new trace features to debug an integration test

Go Experience report: Go’s type system

When Go’s type system impedes library interoperability