Having difficulty authenticating a JWT token in my Nextjs application

Question

Having difficulty authenticating a JWT token in my Nextjs application

Help required with verifying a JWT token in Nextjs as I'm encountering the following error:

TypeError: Right-hand side of 'instanceof' is not an object

See below for the code I am currently using:

useEffect(() => {
    let token = localStorage.getItem("jqToken") || "";
    let result: any = "";
    try {
      result = jwt.verify(token, "SECRETEKEY");
    } catch (error) {
      console.log(error, "ERR");
    }
    console.log("first", result);
  }, []);

If anyone has solutions to this issue, please share your thoughts!

typescript next.js jwt

Answer 1

Answer №1

To resolve the issue, I tackled it by putting together a file directly in the root directory named "verifyToken.ts". Afterward, I proceeded to write the following code:

import jwt, { JwtPayload, Secret } from 'jsonwebtoken';

export const verifyToken = (token: string, secret: Secret): JwtPayload | null => {
    try {

        // Validate the token using the specified secret key
        const decoded = jwt.verify(token, secret) as JwtPayload;
        console.log(decoded)
        return decoded;
    } catch (error) {
        console.log(error)

        return null;
    }
};

Upon implementing the above steps, the problem was successfully resolved.

Answer 2

To resolve the issue, I tackled it by putting together a file directly in the root directory named "verifyToken.ts". Afterward, I proceeded to write the following code:

import jwt, { JwtPayload, Secret } from 'jsonwebtoken';

export const verifyToken = (token: string, secret: Secret): JwtPayload | null => {
    try {

        // Validate the token using the specified secret key
        const decoded = jwt.verify(token, secret) as JwtPayload;
        console.log(decoded)
        return decoded;
    } catch (error) {
        console.log(error)

        return null;
    }
};

Upon implementing the above steps, the problem was successfully resolved.

Having difficulty authenticating a JWT token in my Nextjs application

Answer №1

Similar questions

Populate input fields in HTML using Angular 4

"Users have reported that the file upload preview feature in Angular 6 only works after the

Discovering how to specify the type of a dynamically created object using 'for await' in TypeScript

Encountering issue with accessing req.body within Next.js 13 middleware function

Is there a way for me to navigate from one child view to another by clicking on [routerLink]?

Retrieve a specific nested key using its name

MongoDB facing difficulties in updating the database

Transform a static website into a dynamic platform using Next.js

Incorporate FontAwesome global components into your Vue project using TypeScript

Using getStaticProps in Next.js to retrieve menu data and seamlessly integrate it into the layout

The application suddenly displays a blank white screen after encapsulating my layout with a context provider

The efficiency of React Context API's setters is remarkably sluggish

Unable to generate or compose a text document within my Ionic application

When using a function as a prop in a React component with Typescript generics, the type of the argument becomes unknown

Encountered an error when incorporating nguniversal/express-engine into an Angular project: "Unable to locate the BrowserModule import in /src/app/app.module.ts"

Using lambda expressions to sort through an array of objects in React

Utilizing Typescript: Ensuring an array includes only specified values from an enum through strict enforcement

The utilization of a Typescript Generic for basic addition is not producing the desired results

Preventing the display of the login page for an authenticated user in Angular

Displaying a page with dynamic data fetched from the server-side to be utilized in the getInitialProps method of