I am using Jmeter 5.1 for my application API performance test. As per my business logic, I should not take sample time from Jmeter. Instead , I need to take elapsed time which is available in response body and Pass it to Jmeter for sample Time then I can use JMeter sample time. How to customize Jmeter sample time ?.

OR

How to add my response's elapsedTime in summary / Aggregate reports ?

My response payload:

```
{
"a": "res1",
"b":"res2",
"elapsedTime":"25"
} 

```