core.function

A primitive stream that evaluates a Common Expression Language (CEL) expression and emits the result. The expression may reference named streams specified in the inputs property.

Keywords

The CEL expression.

An object of named stream definitions that may be referenced in expression.

Examples

{
  "type": "function",
  "expression": "username + '@' + domain",
  "variables": {
    "username":{
      "type": "string",
      "minLength": 2,
      "maxLength": 64
    },
    "domain": {
      "type": "enum",
      "enum": ["example.com", "example.org"]
    }
  }
}