Python Script Examples in NiFi This space contains python script examples for using in Apache NiFi's scripting components, especially the ExecuteScript processor. ExecuteScript Samples Script Description update_attribute.py Read flowfile and update flowfile's attributes simple_write_content.py Update flowfile content read_update_content.py Read and overwrite content json_to_string_transform.py Read JSON and transform to string nested_json_to_string_transform.py Read nested JSON and transform to string json_transform.py Update content of JSON format flowfile nested_json_transform.py Update content of nested JSON format flowfile Variable used in ExecuteScript Variable Name Description session ProcessSession context ProcessContext log Log Component REL_SUCCESS Success Relationship REL_FAILURE Failure Relationship Reference: BatchIQ ExecuteScript Cookbook