private static Server newServer(int port) {
        final ServerBuilder sb = Server.builder();
        sb.http(port);
        configureService(sb);
        return sb.build();
    }
Returns a new {@link Server} instance configured with GraphQL HTTP services.

@param port the port that the server is to be bound to
examples/graphql/src/main/java/example/armeria/server/graphql/Main.java