Naming convention for similar Golang variables

Question

I have a couple of cases where I have the same underlying value being represented as multiple types.

Example :

userIDString := r.URL.Query("id")
userID, err :=  strconv.Atoi(userIDString)

I need to use both the above variables at different places.

Similarly

recordSeparator = rune(30)
recordSeparatorString = string(30)

Is my approach to naming such variables considered idiomatic go ? If not what would be the ideal naming convention for such cases ?

PS: I don't think this question is primarily opinion based, I'm looking for answers referencing the naming conventions in popular go projects / standard lib.

Answer 1

The likely most authoritative book in the field, The Go Programming Language, discusses this topic in section 10.6 Packages and Naming:

• keep names short but don't make them cryptic (user over userName)
• package names usually take singular form (unless there's a conflict with predeclared types)
• pick names so that they read in the context of the package, for example, net.IP

In addition, there's a nice slide deck What's in a name addressing some of the questions and a somewhat informative reddit thread that might be useful as well.

Most of the naming conventions in my experience (in addition to the above mentioned) are however project or company specific.