How to pass the dynamic value in Body data in the Post Request using jmeter

Question

I recorded the .JMX script in Jmeter and one of the request is as below

POST http://www.hello.com/auth/nqa/md/login

Body data: {"domainId":"nqa","code":"12345skdkdk"}

I would like to send the "code" field dynamically and for that I added the regular expressing extractor as below enter image description here

When i re run the script , the code value is not replaced with the dynamic value.

Not sure what part i am missing in the regular expression extractor or in the Body data field

Answer 1

• List item

you should do three-step of below

1. go to the random variable according below picture

2. Define random variable name . in this case we set variable name to code1 and set min & max value to this

3. Use ${code1} variable to your data section