Text and Input Validation in Golang

I've created this helping script for my APIs to deal with user inputs. Just clone the repo and use it in your project.

Usage:

1. Define the validator

userInput := validator("blah!blah!blah!")

2. Apply the methods

   userInput.Required().oneLowerCase().check() // will return true or false

Methods

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

Using Multiple Methods:

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.