-- :api: start-transform :request: StartTransformRequest :response: StartTransformResponse -- [role="xpack"] [id="{upid}-{api}"] === Start {transform} API Starts a {transform}. It accepts a +{request}+ object and responds with a +{response}+ object. [id="{upid}-{api}-request"] ==== Start {transform} request A +{request}+ object requires a non-null `id`. ["source","java",subs="attributes,callouts,macros"] --------------------------------------------------- include-tagged::{doc-tests-file}[{api}-request] --------------------------------------------------- <1> Constructing a new start request referencing an existing {transform} ==== Optional arguments The following arguments are optional. ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests-file}[{api}-request-options] -------------------------------------------------- <1> Controls the amount of time to wait until the {transform} starts. include::../execution.asciidoc[] ==== Response The returned +{response}+ object acknowledges the {transform} has started.