// Query is an endpoint that returns data for one or more metrics over a
// specific time span.
func (s *Server) Query(ctx context.Context, request *tspb.TimeSeriesQueryRequest) (*tspb.TimeSeriesQueryResponse, error) {
if len(request.Queries) == 0 {
return nil, grpc.Errorf(codes.InvalidArgument, "Queries cannot be empty")
}
response := tspb.TimeSeriesQueryResponse{
Results: make([]tspb.TimeSeriesQueryResponse_Result, 0, len(request.Queries)),
}
for _, q := range request.Queries {
datapoints, sources, err := s.db.Query(q, Resolution10s, request.StartNanos, request.EndNanos)
if err != nil {
return nil, grpc.Errorf(codes.Internal, err.Error())
}
result := tspb.TimeSeriesQueryResponse_Result{
Query: q,
Datapoints: datapoints,
}
// TODO(tamird): Remove this (and all other) explicit setting of defaults.
// It is currently required because the client side doesn't know about
// proto defaults.
result.SourceAggregator = q.GetSourceAggregator().Enum()
result.Downsampler = q.GetDownsampler().Enum()
result.Derivative = q.GetDerivative().Enum()
result.Sources = sources
response.Results = append(response.Results, result)
}
return &response, nil
}
// Query is an endpoint that returns data for one or more metrics over a
// specific time span.
func (s *Server) Query(ctx context.Context, request *tspb.TimeSeriesQueryRequest) (*tspb.TimeSeriesQueryResponse, error) {
if len(request.Queries) == 0 {
return nil, grpc.Errorf(codes.InvalidArgument, "Queries cannot be empty")
}
response := tspb.TimeSeriesQueryResponse{
Results: make([]tspb.TimeSeriesQueryResponse_Result, 0, len(request.Queries)),
}
for _, query := range request.Queries {
datapoints, sources, err := s.db.Query(query, Resolution10s, request.StartNanos, request.EndNanos)
if err != nil {
return nil, grpc.Errorf(codes.Internal, err.Error())
}
result := tspb.TimeSeriesQueryResponse_Result{
Query: query,
Datapoints: datapoints,
}
result.Sources = sources
response.Results = append(response.Results, result)
}
return &response, nil
}