Using token-based authentication, like JWT or OAuth, is very important for keeping Node.js applications safe. However, it can be tricky. Here are some of the main challenges:

1. Setting It Up Can Be Complicated:

   • Creating these token systems isn’t always easy. Developers need to understand how to make tokens, check them, and know when they expire. This can lead to mistakes during setup.

2. Risks of Being Unsafe:

   • If tokens are not handled correctly, they can be stolen or misused. This puts sensitive information at risk.

3. Need for Safe Practices:

   • Using tokens means developers have to make sure they’re sent safely (like using HTTPS) and stored properly to prevent leaks.

To solve these problems, it’s important to provide clear documentation and guidelines for security. Developers can also use special libraries that help make secure authentication easier, so they don’t have to worry as much.