title: How to change content of Post Body in JMeter HTTP Request
body: <p>Please forgive my ignorance as I'm a jmeter noob.  My webservice accepts JSON objects so I was able to write a rudimentary test where I create an HTTP Request with a JSON object in the "Post Body" portion of the http request.</p>
  
  <p>Anyway, what I want to do is have the HTTP Request choose a different JSON object from a csv file or some other input mechanism so that I can randomize the types of queries that are being run during the load test.  Is there a way to do this?  The closest is probably using variables (section 4.11 in the user manual) but I have a feeling that's not how variables are used.</p>
  
  <p>A second way I've theorized (although I haven't tried yet since I think the method above is easier) is to create a HTTP Request Default obj with a bunch of HTTP Requests with different JSON objects in them and then use a Random Controller to randomly go thru my multiple HTTP Requests on each pass.</p>
  
  <p>If there's a third way, I'm all ears to learn how to use this tool.  I'll continue to read and possibly experiment with plan B above.  Thanks in advance for any help you can give me.</p>
  
  <p><br>
  UPDATE: So I tried the second way and it seems to work.  I had 3 different HTTP requests and the number of times each request gets hit varies from run to run.  I still invite answers from the community since I'd like to see what the pros do for issues similar to mine.</p>