Hi @Mohit Sharma, You should look at the ExecuteScript and InvokeScriptedProcessor processors. Both of these processors can execute code written in Javascript directly from NiFi. @Matt Burgess has written very helpful blog posts on this functionality. ... View more

David, While "individual canvases" are not available, NiFi 1.0.0 (released today) introduces the concept of multi-tenant authorization. This allows extremely granular security access controls for groups and users over components, process groups, controller services, etc. Using MTA, an administrator can provide multiple process groups at the root process group level and apply different read and write permissions to each, effectively allowing users to access their "own canvases", without being able to view or modify another user's process group. The official NiFi documentation on the website should be updated within the next 24 hours to reflect the new behavior, but for now you can download and build NiFi 1.0.0 and then click "Help" from the "hamburger menu" in the upper right corner of the canvas. The Admin Guide and User Guide have extensive documentation on using this feature. ... View more

@nejm hadj, as I answered to your comment on the other question, it sounds like you need to complete the following steps: Download the Facebook server certificate (via the browser or using openssl). $ openssl s_client -showcerts -connect graph.facebook.com:443 </dev/null Import that certificate as a trusted certificate into a truststore file (not required in this case as explained below, but would be required if using an internal or custom organizational CA not pre-loaded in the JRE/JDK cacerts). As you can see in the output of the above openssl command, the Facebook server certificate (identified by subject /C=US/ST=CA/L=Menlo Park/O=Facebook, Inc./CN=*.facebook.com ) is issued by the DigiCert certificate ( /C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3 ), and that intermediate CA is in turn issued by the DigiCert Root CA ( /C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance EV Root CA ). The Root CA is already present in the default Java cacerts truststore, located at $JAVA_HOME/jre/lib/security/cacerts . You can verify this by running the following command: $ keytool -list -v -keystore $JAVA_HOME/jre/lib/security/cacerts -alias digicerthighassuranceevrootca and comparing the SHA-1 fingerprints (also available at DigiCert's website). Configure the PostHTTP processor to use an SSLContext which references that truststore file. The truststore type is JKS . The truststore location is $JAVA_HOME/jre/lib/security/cacerts . The truststore password is changeit . ... View more