utils.ts

TLDR

This file provides utility functions for generating unique identifiers.

Classes

Utils

This class provides a static method createGuid() that generates a globally unique identifier (GUID) based on the pattern 'xxxxxxxx-xxxx-4xxx-8xxx-xxxxxxxxxxxx'. The method uses the crypto module to generate random bytes for generating the hexadecimal digits. If the crypto module is not available, it falls back to using Math.random().

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import * as crypto from 'crypto'

class Utils {
    static createGuid(): string {
        function randomDigit() {
            if (crypto && crypto.randomBytes) {
                const rands = crypto.randomBytes(1)
                return (rands[0] % 16).toString(16)
            }

            return (Math.floor((Math.random() * 16))).toString(16)
        }
        return 'xxxxxxxx-xxxx-4xxx-8xxx-xxxxxxxxxxxx'.replace(/x/g, randomDigit)
    }
}

export { Utils }