Pattern Entities

Pattern or Regular Expression Extraction allows you to extract information presented in a format that can be described using Regular Expression (RegEx). Once you've created a pattern entity, Digital Agent Native NLU will perform a regex extraction on each incoming message and add it to event.nlu.entities.

Example:

Given a Pattern Entity definition with [A-Z]{3}-[0-9]{4}-[A-Z]{3} as pattern:

Extraction will go like this:

{ name: 'SKU',
  type: 'pattern',
  meta:
   { confidence: 1,
     provider: 'native',
     source: 'BHZ-1234-UYT',
     start: 13,
     end: 25,
     raw: {} },
  data: {
    extras: {},
    value: 'BHZ-1234-UYT',
    unit: 'string'
    }
}