title: Write cURL request to .json file
body: <p>I want to take the response body generated from this request:</p>
  
  <pre><code>curl -X GET \
  -H "X-Parse-Application-Id: AppId" \
  -H "X-Parse-REST-API-Key: RESTAPIKey" \
  https://parseapi.back4app.com/classes/_User
  </code></pre>
  
  <p>...and output a .json file. How can I do this?</p>