Oversee various interactions for the user

I am currently utilizing NodeJs, ExpressJs, and Angular 6 for my application, but I have encountered an issue.

Within my system, there is a user with the attributes:

User U:
{
    name;
    email;
    password;
}

Let's assume this user, named U, is logged in simultaneously from Chrome, Firefox, and a Mobile Phone. If U decides to change their name using the mobile phone, I need to update it in the database and ensure that all signed tokens across all devices reflect this new name.

What would be the most efficient approach to handle this scenario?

I would appreciate any alternative suggestions as well.

Thank you.

node.jsangularexpressjwt

Answer №1

In essence, the typical response is essentially "you can't". I would also make a case for why "you shouldn't."

When you modify any part of the payload, existing tokens will become invalid because the payload is included in what is authenticated for verification purposes. This plays a critical role in ensuring that the tokens remain untampered with.

As a result, all tokens across all devices are likely to be rendered invalid, requiring the user to log in again on each device to obtain a new token. The way you currently manage a logged-out user in your application is the right approach to handling this situation.

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