Golang way

• I want to convert a list of type T1 to a list of type T2. Do I convert its element one-by-one?
  • Yes, simply iterate over the whole list. cf. Type converting slices of interfaces in go
• Does a Go project needs to be under GOPATH? I wrote a tool in Go and want to check it into an exising repository, but don’t want to put the repo under GOPATH as it’s mostly written in non-Go languages
  • Add an appropriate place to GOPATH every time you run go commands. cf. GOPATH for a project written in several languages (for example Go and Python)?
• AWS SDK for Go exposes structs but not many interfaces hence hard to mock in unit tests.
  • Define interfaces as you need and use AWS SDK through them. cf. Discussion: How should you unit test code which uses the aws-sdk-go
• Where is list manipulation functions like filter, map, reduce, …?
  • Use for loop. cf. Map, reduce and filter in Go?, Writing type parametric functions in Go
• Dereferencing a nil pointer doesn’t cause an error??
  • No. There was a discussion: Why can I call methods on nil pointers?
• Go’s struct doesn’t have a constructor. How can I make sure my objects are instantiated consistently?
  • Write a factory method to instantiate an object. cf. Constructors - Go Language Patterns
• Is it appropriate to use channel here? Go channels are bad and you should feel bad