@Carson, Like @joseomjr wrote (but did not gave the entire link by mistake), you should take a look at the following Article as it describes exactly what you need -->  https://community.cloudera.com/t5/Community-Articles/ExecuteScript-Cookbook-part-3/ta-p/249148   Basically, you add the property in your NiFi Processor and reference it to your parameter value and afterwards you call it in your script: myValue1 = myProperty1.getValue()   ... View more