Introduction

GUID (Globally Unique Identifier) validation is crucial in software applications where unique identifiers are required. A regex pattern for GUID validation typically matches the format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx where x is a hexadecimal digit.

GUID Regex

A standard GUID is a 128-bit number, represented in a specific format.

The GUID Regex Pattern

The regex pattern for a standard GUID is:

^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-5][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$

• This pattern ensures that the GUID is in the correct format.

How to Validate GUIDs Using Regex in Go?

Validating a GUID in Go with regex involves:

1. Define the regex pattern for a valid GUID.

2. Compile the regex using the regexp package in Go.

3. Validate the GUID strings with the compiled regex.

package main

import (
    "fmt"
    "regexp"
)

func isValidGUID(guid string) bool {
    // Define the regex pattern
    var guidRegex = regexp.MustCompile(`^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-5][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$`)
    return guidRegex.MatchString(guid)
}

func main() {
    testGUID := "123e4567-e89b-12d3-a456-426614174000"
    fmt.Printf("Is '%s' a valid GUID? %t\n", testGUID, isValidGUID(testGUID))
}

Uses of GUID Regex Validation

• Unique Resource Identification: Ensuring each GUID is unique and correctly formatted in systems like databases and distributed systems.

• Data Integrity: Validating GUIDs to maintain data consistency across different parts of an application or different applications.

• API Communication: Ensuring that GUIDs used in API requests and responses are in the correct format.

What next?

For reliable GUID validation in Go, apply the specified regex pattern. For enhanced verification, Akto's GUID validation tool provides an additional layer of validation.