The validate package provides a collection of functions for validating various types of data, including strings, numbers, dates, and more. It also offers the flexibility to define custom validation rules for any data type.
To use the validate package in your Go project, you can install it using the go get command:
go get github.com/progxeno/validateThe validate package offers validation functions that can be used to validate different types of data.
Available functions:
-
validate.StringIsEmpty
Checks if a string is empty or contains only whitespace.
-
validate.StringMinLength
Validates that a string has a minimum length.
-
validate.StringMaxLength
Validates that a string has a maximum length.
-
validate.StringMatchesRegex
Validates that a string matches a given regular expression pattern.
-
validate.StringContainsChars
Validates that a string contains any of the specified characters.
-
validate.NumericMinInt
Validates that an integer is greater than or equal to a minimum value.
-
validate.NumericMaxInt
Validates that an integer is less than or equal to a maximum value.
-
validate.NumericMinFloat
Validates that a float is greater than or equal to a minimum value.
-
validate.NumericMaxFloat
Validates that a float is less than or equal to a maximum value.
-
validate.NumericIsInt
Checks if a string represents a valid integer.
-
validate.NumericIsFloat
Checks if a string represents a valid float.
-
validate.EmailIsValid
Checks if a string represents a valid email address.
-
validate.URLIsValid
Checks if a string represents a valid URL.
-
validate.DateTimeIsValid
Checks if a string represents a valid date in the specified format.
-
validate.DateTimeIsFuture
Checks if a date is in the future.
-
validate.DateTimeIsPast
Checks if a date is in the past.
-
validate.PasswordMatchesPolicy
Checks if a password matches the specified policy.
-
validate.FileIsValidExtension
Checks if a filename has a valid extension.
In addition, the validate package includes a Validate struct that allows you to define custom validation rules. You can create a new instance of the Validate using the NewValidate function, add validation rules using the AddRule method, and validate any value using the Validate method.
Example of custom validation function:
package main
import (
"fmt"
"github.com/progxeno/validate"
)
func main() {
// Create a new validate
v := validate.NewValidate()
// Add a custom validation rule
v.AddRule(func(value interface{}) error {
if value.(int) < 0 {
return errors.New("value must be positive")
}
return nil
})
// Validate a value using the custom rule
err := v.Validate(5) // nil
fmt.Println("Custom validation:", err)
err = v.Validate(-5) // error: value must be positive
fmt.Println("Custom validation:", err)
}The validate package is licensed under the MIT License. See the LICENSE file for more information.