Data Validator

This Snap provides the functionality to validate incoming data against a set of defined constraints.
Available constraints are:

• Pattern
• Minimum
• Maximum
• MinLength
• MaxLength
• Required
• Type

An example of a pattern can be seen in the following image:

The pattern constraint in the screenshot above validates all incoming documents and their attributes a.c.b against the regular expression ^abc, expecting that all attribute values of a.c.b start with abc. If they do, the document is routed to the output view; otherwise, the document is routed to the error view.

• Pattern is a regular expression, defined as a string value.
• Minimum and Maximum can only be defined for number values. Allowed constraint values are numbers. 
• MinLength and MaxLength can only be defined for string values. Allowed constraint values are integers. 
• Required can be defined for any value and will verify that a value exists. The Constraint value field is ignored for the Required constraint.
• Type can be defined for any source path. The default is object. Valid type definitions are: string, number, object, array, boolean, date, time, date-time, local-date-time, any.