JSON Web Token (JWT) set expire time in node js

Setting Expiry Time for JSON Web Token (JWT) in Node.js

To set the expiry time for a JSON Web Token (JWT) in Node.js, you can follow these steps:

1. Generate a New JWT:
2. To generate a new JWT, you can use the jsonwebtoken library in Node.js. This library allows you to create and verify JWTs.
3. Here's an example of how to create a JWT with an expiry time of 1 hour: javascript const jwt = require('jsonwebtoken'); const token = jwt.sign({ user: 'username' }, 'secret', { expiresIn: '1h' });

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1. Specify Expiry Time:
2. When creating the JWT, you can specify the expiry time using the expiresIn option in the jsonwebtoken.sign method.

3. The value for expiresIn can be a number of seconds or a string describing a time span. For example, '1h' for 1 hour, '7d' for 7 days, etc.

4. Use the JWT:

5. Once the JWT is created with the specified expiry time, you can use it for authentication and authorization in your Node.js application.
6. When a client sends the JWT for authentication, you can verify its validity and expiry using the jsonwebtoken.verify method.

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By following these steps, you can set the expiry time for a JSON Web Token (JWT) in your Node.js application.