How to save response in a variable in jmeter

Question

I am performing load testing on my server using jmeter. In one of my post requests, I receive a unique id in the response. I need to send this id as a parameter in the following

Answer 1

If you really need to store the whole response into a variable, do the following:

1. Add JSR223 PostProcessor as a child of the request which returns response you're looking for

2. Put the following line into the "Script" area:

vars.put("response", prev.getResponseDataAsString());

3. Use then this response as ${response} where you need it

But you rarely need to use the whole response and you should avoid it for big , in this case it is much better to use the Extractor that suits your response format:

• JSON Extractor for JSON
• CSS/JQuery Extractor for HTML extraction
• XPath Extractor for XML
• Regular Expression Extractor for all of them or any textual format