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

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