Variable actionConst

action: TUnion<
    [
        TLiteral<"create">,
        TLiteral<"update">,
        TLiteral<"delete">,
        TLiteral<"undelete">,
    ],
> = ...

Action to perform on the object (updates are not supported in the form-encoded syntax).

A few POST body property names are reserved when requests are sent as x-www-form-urlencoded or multipart/form-data.