[Solved] Identify the error in this JWT verification code snippet:const jwt = require('jsonwebtoken'); const token = req.headers.authorization; const decoded = jwt.verify(token, 'secretKey'); console.... | Rest API

Rest API - Authentication and Authorization

Identify the error in this JWT verification code snippet:

const jwt = require('jsonwebtoken');
const token = req.headers.authorization;
const decoded = jwt.verify(token, 'secretKey');
console.log(decoded);

AUsing 'jsonwebtoken' instead of 'jwt-simple'

BIncorrect secret key format

CMissing check if token exists before verification

DLogging decoded token is not allowed

Step-by-Step Solution

Solution:

Step 1: Review token retrieval
The code gets token from headers but does not check if it exists before verifying.
Step 2: Identify missing validation
If token is missing, calling verify will throw an error; a check is needed first.
Final Answer:
Missing check if token exists before verification -> Option C
Quick Check:
Always check token presence before verify [OK]

Quick Trick: Check token exists before verify call [OK]

Common Mistakes:

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