Storing Session State in NiFi

[#1]

Can NiFi store current session state variables when being exposed as a web service using HandleHttpRequest-HandleHttpResponse?

Does the State Manager store state application or session wise?

[#2 · Accepted solution]

You don't really have a session store in NiFi. However, it would be perfectly possible to create a session store using Cookies and the DistributedMapCacheService and associated processors. You would need to do this by having a flow that creates a session id and adds the Set-Cookie header to the response using dynamic properties on the HandleResponse processor. Use the contents from this as a key to then change and lookup session contents.