Using the Content of a FlowFile in NiFi Expression Language?

[Jeff - Data Bean Australia]

Hi,

The ${ attribute } expression can help using attributes of a FlowFile in
NiFi Expression Language, but what about the content?

For example, if there is only one line in a FlowFile and I would like to
use it as part of my URL for InvokeHTTP processor, how can I do it?

Thanks,
Jeff

-- 
Data Bean - A Big Data Solution Provider in Australia.