selectionFor()

function selectionFor(responseType, optIn?): string;

Resolve the selection set for responseType, plus any OPTIONAL_FIELDS groups the caller opted into. Groups are additive and order-independent, so two opt-ins on one type combine into a single selection.

Fields are deduplicated, so groups may overlap — bodyEncoding names the body it describes, and asking for both it and body selects body once.

Parameters

Parameter	Type	Description
responseType	string	The response type key, eg HTTPResponse.
optIn?	readonly string[]	Names of optional field groups to append.

Returns

string