Posts about go

22 Dec 2020

How to test database interactions in golang applications

Testing of functions with database interactions always was challenging. Recently, I found a wonderful library go-sqlmock which will simplify writing tests and mocking database queries in golang applications a lot.

go testing sql

20 Dec 2020

Go middleware example. How to alter a handler result

Let’s imagine a situation when you want to alter the result, returned by some http handler to the client. Fortunately, Golang provides an easy mechanism for that, called a middleware. I’m going to dive directly to the source code, to save your time.

go middleware