It is, take a look at __FileToString() function <https://jmeter.apache.org/usermanual/functions.html#__FileToString> which you can use directly in the HTTP Request sampler "Body Data" tab where it is required to add this header.
Given you have nested functions inside the payload you will also need to wrap it into __eval() function <https://jmeter.apache.org/usermanual/functions.html#__eval> so they would be evaluated in the runtime > ${__eval(${__FileToString(/path/to/your/file,,)})} More information: Here’s What to Do to Combine Multiple JMeter Variables <https://www.blazemeter.com/blog/here%E2%80%99s-what-do-combine-multiple-jmeter-variables> -- Sent from: http://www.jmeter-archive.org/JMeter-User-f512775.html --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@jmeter.apache.org For additional commands, e-mail: user-h...@jmeter.apache.org