How to load JSON Web Tokens (JWTs) in my javascript file

I’m in custom module for Drupal, and i need to use JWT in javascript.

So i tried npm i jsonwebtoken and import jwt from "../node_modules/jsonwebtoken/index.js"; on my js/index.js

But i have the following error : Uncaught SyntaxError: The requested module '../node_modules/jsonwebtoken/index.js' does not provide an export named 'default'

I dont understand what to do and how i can load my library jsonwebtoken.

Sorry i’m really a beginner in javascript.