How can I use pre-request scripts in Postman?

How can I use pre-request scripts in Postman?

Pre-request scripts in Postman allow you to run JavaScript code before a request is sent. You can use them to set variables, manipulate data, or perform any setup needed for your request.

Can you give me an example of a pre-request script?

Sure! Here's a simple example: you can set a variable with the current timestamp using pm.environment.set('timestamp', new Date().toISOString());.

How do I access this variable in my request?

You can access the variable in your request by using the syntax {{timestamp}}. This will replace it with the value you set in the pre-request script.

Are there any limitations to what I can do in pre-request scripts?

Yes, pre-request scripts run in a sandboxed environment, so you can't access external resources directly. However, you can use built-in libraries and functions.