import "github.com/revel/revel/validation" ... username := "John" err := validation.Validate(username, validation.Required{}) if err != nil { // handle error }
import "github.com/revel/revel/validation" ... email := "[email protected]" password := "password123" err := validation.Validate(email, validation.Required{}, validation.EmailAddr{}, ) if err != nil { // handle error } err = validation.Validate(password, validation.Required{}, validation.MinLength{6}, ) if err != nil { // handle error }This code snippet shows how to validate an `email` field to ensure it is not empty and is a valid email address, and a `password` field to ensure it is not empty and has a minimum length of 6 characters. The `validation.EmailAddr` function is used to ensure that the email is a valid email address, and `validation.MinLength` is used to ensure that the password has a minimum length of 6 characters. Overall, the `github.com.revel.revel Validation` package is a useful package for validating input data in Go applications.