Hands-On Server-Side Web Development with Swift

Deleting an Item

The handler for deleting a record is not so different from the HTTP PUT operation. After retrieving the record, you simply call the delete(on:) method:

func removeEntry(_ req: Request) throws -> Future<HTTPStatus> {    let id = try req.parameters.next(Int.self)    return JournalEntry.find(id, on: req).flatMap { entry in        guard let entry = entry else { throw Abort(.notFound) }        return entry.delete(on: req).transform(to: HTTPStatus.noContent)    }}

The return type for the preceding function is Future. After the record has been deleted, you issue HTTPStatus.noContent to the client.

Now, use curl again to test the delete handler:

$ curl --request DELETE http://localhost:8080/api/admin/1

The preceding command should have erased the record ...