Templates are deprecated from 2.X I have existing nifi process groups in the form of exported .json files Below is the requirement for REST API: 1. Create process group using exported .json file if not exist 2. Update existing process group I am able to uplod to existing process group using below curl: curl --location 'https://localhost:8443/nifi-api/process-groups/1e373804-0191-1000-e950-856de82e267d/process-groups/upload' \ --header 'Cookie: __Secure-Request-Token=2dae7036-f4c3-4115-9865-6c9d7984dfa8' \ --header 'Authorization: Bearer esometoken3M' \ --form 'positionX="11.0"' \ --form 'clientId="11"' \ --form 'disconnectNode="false"' \ --form 'groupName="empty"' \ --form 'positionY="557.0"' \ --form 'file=@"/home/gwl/Downloads/existing-flow.json"'   But when i try to upload completely new process group using below curl: curl --location 'https://localhost:8443/nifi-api/process-groups/01911000-3804-1e37-10a0-827d946513c6/process-groups/upload' \ --header 'Cookie: __Secure-Request-Token=2dae7036-f4c3-4115-9865-6c9d7984dfa8' \ --header 'Authorization: Bearer eyJraWQE3MjI3ODc2ODksImlzcyI6Imh0dHBzOi8vMTI3LjAuMC4xOjg0NDMiLCJncm91cNr3F1fuSJ4dtIymm4qB7OwWRrLUiRq-qMB3GTqR8Tvg_CZ6kHsYuyNEGWF9g1nnmEVvd0bQ5ok-wChtM82G1Fud3DfBjFH6-Uzeb-L47assCIL1dzMD2KyC-5HpuTHF3M' \ --form 'positionX="11.0"' \ --form 'clientId="11"' \ --form 'disconnectNode="false"' \ --form 'groupName="empty"' \ --form 'positionY="557.0"' \ --form 'file=@"/home/gwl/Downloads/new-flow.json"' It gives me below error: An unexpected error has occurred. Please check the logs for additional details. The log output from nifi-user.log is: 2024-08-04 23:17:17,479 ERROR [NiFi Web Server-904] o.a.nifi.web.api.config.ThrowableMapper An unexpected error has occurred: java.lang.NullPointerException: Cannot invoke "org.apache.nifi.groups.ProcessGroup.getControllerServices(boolean)" because "parentGroup" is null. Returning Internal Server Error response. java.lang.NullPointerException: Cannot invoke "org.apache.nifi.groups.ProcessGroup.getControllerServices(boolean)" because "parentGroup" is null ... View more

I am using Apache nifi invokeHttp processor to call Google API. The url contains a path which i need to encode.So in the URL,only path is encoded e.g. resources%2F8cb90ae6-16cc-4460-99f4-3ae0689b3b66%2Fdata_asset%2FCETIvowels-38.pdf However whenver I set encoded url, the processor internally replaces %2F with %252F which results in HTTP 404 response. E.g. Nifi convert URL - https://storage.googleapis.com/storage/v1/b/t-bis-1hg-jk/o/resources%2F8cb90ae6-16cc-4460-99f4-3ae0689b3b66%2Fdata_asset%2FCETIvowels-38.pdf?alt=media to https://storage.googleapis.com/storage/v1/b/t-bis-1hg-jk/o/resources%252F8cb90ae6-16cc-4460-99f4-3ae0689b3b66%252Fdata_asset%252FCETIvowels-38.pdf?alt=media   ... View more