When to use []byte or string in Go?

Question

Frequently in writing Go applications, I find myself with the choice to use []byte or string. Apart from the obvious mutability of []byte,

Answer 1

My advice would be to use string by default when you're working with text. But use []byte instead if one of the following conditions applies:

• The mutability of a []byte will significantly reduce the number of allocations needed.

• You are dealing with an API that uses []byte, and avoiding a conversion to string will simplify your code.