HTTP Target

HTTP Target properties for Script Engine. Calls an HTTP endpoint and reports back the response, status code and timing. Useful for triggering web hooks when a project starts, posting telemetry to a control system, polling REST APIs as part of a show, integrating with cloud automation workflows or pinging health-check endpoints from the running composition. The result can be passed back to the Script Engine via the optional callback function.

Property	Type	Access	Description
`EndPoint`	`string`	`get/set`	The full URL to call, including scheme (http:// or https://) and any query string already attached. Additional parameters can be appended automatically via the `Parameters` property. Avoid placing API keys directly in this URL when the project file may be shared.
`Parameters`	`string`	`get/set`	Optional extra query-string parameters that get appended to `EndPoint` with an `&` separator. Useful for adding dynamic values from the Script Engine without having to rebuild the full URL each time. Leave empty if all parameters are already part of `EndPoint`.
`ExecuteAtStart`	`bool`	`get/set`	Fires the HTTP request automatically when the project starts. Useful for sending a "stream is live" notification, registering with a control system or kicking off a downstream workflow. Combine with `AutoStartDelayMs` if the receiving service needs a moment to come online first.
`AutoStartDelayMs`	`AutoStartDelayMs`	`get/set`	How long to wait after project start before firing the request when `ExecuteAtStart` is enabled. Useful when the receiving service or another target needs a head-start (for example, an RTMP encoder that should be live before the notification is sent).
`OnSuccessScriptCallback`	`string`	`get/set`	Name of a Script Engine function to invoke when the request completes successfully (HTTP 2xx). The response body is passed in as a string argument so the script can parse it. Leave empty to skip the callback.
`Status`	`GenericComponentStatus`	`get`	Current status of the target. `Ready` means idle and ready to fire, `Busy` means a request is in flight.
`HttpGetCommand`	`Command`	`get`	Fires the HTTP request immediately using the current `EndPoint` and `Parameters` values. Useful from the Script Engine to send ad-hoc notifications triggered by user actions, cuepoints or other in-show logic.
`StopCommand`	`Command`	`get`	Cancels a request that is currently in flight. Has no effect if no request is running.
`LastHttpCommandDateTime`	`DateTime`	`get`	Date and time the latest HTTP request was sent (read-only, debug).
`LastHttpCommand`	`String`	`get`	The full URL of the last request, including any appended parameters (read-only, debug). Handy for verifying that template substitutions resolved as expected.
`LastHttpStatusCode`	`int`	`get`	HTTP status code returned by the last request (read-only, debug). `200` means success; `4xx` indicates a client problem (bad URL, missing auth); `5xx` indicates a server problem on the receiving end.
`LastHttpResponse`	`string`	`get`	Response body returned by the last request (read-only, debug). Typically JSON, plain text or HTML depending on the receiving service.
`ResponseTimeMs`	`long`	`get`	How long the last request took, in milliseconds (read-only, debug). Useful for spotting slow endpoints that could affect show timing.
`NumRequests`	`int`	`get`	Total number of requests sent since the project was loaded (read-only, debug).
`Minilog`	`FormattedMessage`	`get`	Latest status or error message from the target (read-only, debug).

Inherits from: AbstractTarget.

See also: HTTP Target in Targets — user-facing introduction, screenshots, and section summaries.