Passing variable from response to request in JMETER

Question

In need to pass a data from a response to the subsequent request. Something goes wrong and the default variable value appears in the request.

First request returns the JSON in response body which looks like this:

{"issued_at":"2016-01-14T12:41:01.000Z","expires":"2016-01-14T12:46:01.000Z","id":"j6M ... MTA=="}

I extract the value of the id attribute using the Regular Expression Extractor:

Then I pass the token variable to the subsequent request parameter:

But the request is created with the default value of the variable:

Answer 1

There is a JSON Path Extractor designed to deal with JSON content type, I believe it would be easier to use it.

The relevant JSON Path query will be as simple as $..id

See Using the XPath Extractor in JMeter (scroll down to "Parsing JSON") for comprehensive information on plugin installation and usage and JSONPath - XPath for JSON for JSONPath language reference and examples.

In regards to your Regular Expression Extractor configuration:

• remove 1 from Match No.
• Provide $1$ as Template

Answer 2

If you look at the Regular Expression Extractor documentation, the field Template is required. I suggest you to use value $1$ and try again.