Apache NiFi RecordPath Guide

Overview
Structure of a RecordPath
Child Operator
Descendant Operator
Filters
Function Usage
- Arrays
- Maps
- Predicates
Functions
Standalone Functions
- substring
- substringAfter
- substringAfterLast
- substringBefore
- substringBeforeLast
- replace
- replaceRegex
- concat
- fieldName
- toDate
- toString
- toBytes
- coalesce
- format
- trim
- toUpperCase
- toLowerCase
- base64Encode
- base64Decode
- escapeJson
- unescapeJson
- hash
- padLeft
- padRight
- uuid5
Filter Functions
- contains
- matchesRegex
- startsWith
- endsWith
- not
- isEmpty
- isBlank