Simple form validation library for Go
There are at least a couple of very good validation libraries for Go that rely on struct tags to declare validation rules. We found these became limiting when wanting to include custom validation rules. We would need to add extra validation functions to these types.
This package foregoes the use of struct tags in favour of declaring forms which are sets of fields which in turn are a set of validation functions. These can be built and customised easily - in a sense, code over configuration.