https://community.cloudera.com/t5/Support-Questions/In-NiFi-is-there-Any-processor-for-converting-Avro-to-CSV-or/m-p/113783#M76581 <P>Hi <A rel="user" href="https://community.cloudera.com/users/1952/suri-1415.html" nodeid="1952">@SparkRocks</A> </P><P>At the moment there is no such processor but there are ongoing discussions on the subject [1].</P><P>The best output format really depends of what you want to do with the data, JSON looks like a good format to me for its flexibility.</P><P>If you really want CSV, there are multiple options depending of how complicated is your input data. If there are not a lot of tables/columns, you could do something like:</P><P>ExecuteSQL &gt; AvroToJson &gt; EvaluateJsonPath (to extract the values into flow file attributes) &gt; ReplaceText to write your CSV using expression language &gt; PutS3</P><P>Otherwise you could have a look to ExecuteScript processor and rely on an existing library to perform the conversion.</P><P>Or, as you suggested, you could write a custom processor and you could contribute your code to NiFi.</P><P>[1] <A href="https://issues.apache.org/jira/browse/NIFI-1372" target="_blank">https://issues.apache.org/jira/browse/NIFI-1372</A></P><P>Hope this helps.</P> Tue, 05 Jul 2016 18:28:01 GMT pvillard 2016-07-05T18:28:01Z