Set request body dynamically

Number of APIs: 1

1. Build the body in the form of a JSON object. This happens inside the pre-request script. js var body = { id: 'asdas', pwd: 'asdas', auth: 'ashd' };
2. Stringify the body, using JSON.stringify. This converts objects to strings. js var body_str = JSON.stringify(body); // body was defined in the previous step.

3. Save the stringified body as an environment variable using pm.environment.set; js pm.environment.set('request_body', body_str); // this sets an environment variable with the stringified body

4. In the request body editor, specify the raw request body as the variable created in step 3. {{request_body}}

Note that the snippet from step 4 will have to be placed in the body editor.

1. Set request body dynamically POST http://postman-echo.com/post