Changing the Express.Request.user type from optional User to required User for authorized routes: A guide

Question

Changing the Express.Request.user type from optional User to required User for authorized routes: A guide

Currently, I am developing a server using Express and Typescript. I have integrated passport js for authenticating the routes I have set up. However, one issue that I encounter is that Express.Request.user is defined as Express.User | undefined. This means that in every protected handler, I need to verify if the request is truthy just to satisfy Typescript.

app.get(
    '/authenticated',
    authPassport.authenticate('jwt', { session: false }),
    (req, res) => {
        if(!req.user) throw new Error();
        console.log(req.user.email)
        res.send('you are authenticated')
    }
)

I am wondering if there is a solution to modify the type of req.user to ensure it always has a definite value User?

typescript express passport.js

Answer 1

Answer №1

To implement in TypeScript, one option is to define a custom interface for the values of req.user.

For instance:

export interface IUserDetails {
  username: string;
  userID: number;
}

req.user = user as IUserDetails;

Answer 2

To implement in TypeScript, one option is to define a custom interface for the values of req.user.

For instance:

export interface IUserDetails {
  username: string;
  userID: number;
}

req.user = user as IUserDetails;

Changing the Express.Request.user type from optional User to required User for authorized routes: A guide

Answer №1

Similar questions

What is preventing me from assigning to a class variable within a $http success handler?

Searching for nicknames in a worldwide Jest arrangement?

Ensure that dynamic functions are accurately typed within a proxy utilizing TypeScript

Accessing the value of a FormControl in HTML代码

Facing difficulty in accessing mongoose schema static method in TypeScript

NodeJS Google Cloud Trace for packaged applications

Ways to retrieve mongoose validation error beyond callbacks

What is the best way to manage errors on my server to ensure it remains stable and never crashes?

Execute a function at a specific time daily using JavaScript

Using Typescript to extract elements from one array and create a new array

The element does not recognize the property 'width' since it is not defined in the type of 'GlobalEventHandlers'

What could be causing the error message "Error: Cannot modify headers after they are sent" to appear?

Is it possible for a function within a nodejs module to be defined but display as undefined upon access?

Tips for resolving the problem of storing user input data with node.js and express

The term 'Employee' is typically used as a classification, but in this context, it is being treated as a specific value

Guide for releasing a typescript package compatible with both node and react applications

I'm facing challenges in getting my server action to trigger. The error message that keeps popping up is unexpected submission of a React form

Implementing strict typing in Twitter widget to eliminate issues with accessing members

Using Typescript: How to pass a function as an argument in another function

Angular Update Component on Input ChangeEnsuring that the component is automatically