func loadQueryers(srv *server.Server, conf config.Config) ([]server.QueryTransport, error) { var out []server.QueryTransport transports, err := conf.QueryTransports() if err != nil { return nil, err } for _, name := range transports { fn, ok := server.GetQueryTransport(name) if !ok { return nil, fmt.Errorf("unsupported query transport: %s", name) } transportConf, err := conf.QueryTransportConfig(name) if err != nil { return nil, err } transport, err := fn(srv, transportConf) if err != nil { return nil, err } out = append(out, transport) } return out, nil }