Expr Filter

The filter.expr processor evaluates an Expr expression. If the expression evaluates to true then the payload is sent through. This processor will return an error if the expression fails to evaluate.

• type: filter.expr
• params:
  • expression: Expr expression to evaluate, must return a boolean

Example

Match a payload great than or equal to 0

- type: filter.expr
  params:
    expression: "Payload >= 0"