NiFi for Apache - the flow


In the previous guide, you have installed, configured and enabled the MiNiFi agent on each of your web server. Now, it is time to build a flow on your central NiFi server to do something with the information that will be sent to it.


Building up a flow on the NiFi server

We are now back to the workspace of our NiFi server.
If you have followed this guide line by line, you should only have one input port called “RemoteMiNiFi” on it.

NiFi and JSON

NiFi and JSON

Remark: with the introduction of the records-oriented flow files, managing JSON with NiFi became easier than ever.
The below how-to about JSON manipulation is making an extensive use of message contents and attributes extraction / modification.
You will find later pages about the records usage in NiFi.