How can a postman send JSON data?

To send JSON data using Postman, you can follow these steps:

1. Open the Postman application.
2. In the Postman request builder, select the HTTP method to send the request (such as GET, POST, PUT, etc.).
3. Enter the target URL you want to send a request to in the URL bar.
4. Add the header Content-Type to the request, with the value of application/json, to indicate that the request is sending JSON data.
5. Select the raw option in the request body and choose JSON (application/json) from the drop-down menu.
6. Enter the JSON data to be sent in the text editor of the request body.
7. Click the send button to submit the request.

In this way, you can use Postman to send JSON data.