Parse field as JSON string

This mapping parses the value of a field in JSON and turns it into fields in the message.

The attributes that need to be set in this mapping are:

Attribute	Required	Description
from	Y	Defines the field name before mapping.
to	Y	Defines the field name after mapping.
precedence	N	Defines the precedence used when mapping.
Function type	Y	Defines the Function type of mapping. Needs to be "String functions".
function	Y	Defines the type of mapping. Needs to be "Parse field as JSON string".

This will convert the value of the field and convert it into key-value pairs in the message. If the JSON includes has objects or arrays, they will be included as a structure in the target message.