I've created this helping script for my APIs to deal with user inputs. Just clone the repo and use it in your project.
- Define the validator
userInput := validator("blah!blah!blah!")
-
Apply the methods
userInput.Required().oneLowerCase().check()// will return true or false
use .check() after all methods to return the boolean value, otherwise the method will return type struct
| Methods | Descrption |
|---|---|
| Required() | returns false if input is empty |
| minLength(int) | returns false if input is less than provided minimum value |
| maxLength(int) | returns false if input is greater than provided maximum value |
| isEmail | return false if input is not an email address |
| oneLowerCase | return false if input value doesn't have at least one lowercase character |
| allLowerCase | return falseif input value doesn't have all lowercase characters |
| oneUpperCase | return false if input value doesn't have at least one uppercase character |
| allUpperCase | return false if input value doesn't have all uppercase characters |
| oneNumber | return false if input value doesn't have at least one number character |
| isSpecialCharacter | return false if input value doesn't have at least one special character |
I've design the methods in a way that multiple methods can be used in a line.
For example to check for a strong password you can use.
userInput.minLength(8).oneLowerCase().oneUpperCase().oneNumber().isSpecialCharacter().check()
The above code will check for the applied methods and will return boolean false if any method doesn't validate the password.