Java Script

Java Script (java-script)

Execute embedded JavaScript to transform events.

Transform Scripting json

Minimal example

actions:
  - java-script: {}

JSON

{
  "actions": [
    {
      "java-script": {}
    }
  ]
}

Contents

• Minimal example

• Fields

• General

• Source

• Execution

Fields

Field	Type	Required	Description
description General	string		Short summary shown next to the action in the editor.
condition General	lua-expression (string)		Only run this action if the specified condition is met. Examples: 2 * count()
source Source	lua-expression (string)		Inline JavaScript source. Either source or path must be provided. Examples: 2 * count()
path Source	file-path (string)		Path (relative to the job workspace) containing the JavaScript source. Examples: /path/to/file, c:\users\joe\data\file.txt
entry-point Execution	string		Name of the exported function to invoke (defaults to transform).
merge Execution	string		When returning an object, merge strategy to apply (defaults to unless-exists).
timeout-ms Execution	number (integer)		Maximum wall-clock execution time per event in milliseconds. Examples: 42, 1.2e-10
memory-limit-bytes Execution	number (integer)		Maximum QuickJS heap usage while executing (bytes). Examples: 42, 1.2e-10

General

Show fields

Field	Type	Required	Description
description	string		Short summary shown next to the action in the editor.
condition	lua-expression (string)		Only run this action if the specified condition is met. Examples: 2 * count()

Source

Show fields

Field	Type	Required	Description
source	lua-expression (string)		Inline JavaScript source. Either source or path must be provided. Examples: 2 * count()
path	file-path (string)		Path (relative to the job workspace) containing the JavaScript source. Examples: /path/to/file, c:\users\joe\data\file.txt

Execution

Show fields

Field	Type	Required	Description
entry-point	string		Name of the exported function to invoke (defaults to transform).
merge	string		When returning an object, merge strategy to apply (defaults to unless-exists).
timeout-ms	number (integer)		Maximum wall-clock execution time per event in milliseconds. Examples: 42, 1.2e-10
memory-limit-bytes	number (integer)		Maximum QuickJS heap usage while executing (bytes). Examples: 42, 1.2e-10