[Solved] Find the bug in this JWT creation code:const jwt = require('jsonwebtoken'); const token = jwt.sign({ user: 'alice' }, 12345); console.log(token); | Rest API

Rest API - Authentication and Authorization

Find the bug in this JWT creation code:

const jwt = require('jsonwebtoken');
const token = jwt.sign({ user: 'alice' }, 12345);
console.log(token);

AToken cannot be logged to console

BPayload must be a string, not an object

CMissing algorithm option in sign method

DSecret key should be a string, not a number

Step-by-Step Solution

Solution:

Step 1: Check secret key type
The secret key must be a string; here it is a number (12345), which is invalid.
Step 2: Confirm payload and options
Payload as object is correct; algorithm option is optional; logging token is allowed.
Final Answer:
Secret key should be a string, not a number -> Option D
Quick Check:
Secret key must be string [OK]

Quick Trick: Secret key must be string in jwt.sign [OK]

Common Mistakes:

MISTAKES

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Find the bug in this JWT creation code: