How to Use Crypto Interface to Easily Generate UUID

In this bog post, I want to show you how to generate a UUID easily using the crypto interface, and why it's important in secure contexts.

What is crypto Interface

The Crypto interface represents basic cryptography features available in the current context. It allows access to a cryptographically strong random number generator and to cryptographic primitives.

How to generate UUID

To generate a UUID with the crypto interface, you need to use the randomUUID()

import * as crypto from "@web5/crypto/utils";

const uuid = crypto.randomUUID();
console.log(uuid); // Output "36b8f84d-df4e-4d49-b662-bcde71a8764f"

More

You should avoid using the Web Crypto API in insecure contexts, even though the Crypto interface is present in insecure contexts, as is the crypto property. In addition, the method randomUUID() is only available on secure contexts (HTTPS and localhost).

The package is available here on npm.