package gitaly import ( "context" "fmt" "io" "net/http" "strconv" "gitlab.com/gitlab-org/gitaly/v14/proto/go/gitalypb" "gitlab.com/gitlab-org/gitaly/v14/streamio" ) type BlobClient struct { gitalypb.BlobServiceClient } func (client *BlobClient) SendBlob(ctx context.Context, w http.ResponseWriter, request *gitalypb.GetBlobRequest) error { c, err := client.GetBlob(ctx, request) if err != nil { return fmt.Errorf("rpc failed: %v", err) } firstResponseReceived := false rr := streamio.NewReader(func() ([]byte, error) { resp, err := c.Recv() if !firstResponseReceived && err == nil { firstResponseReceived = true w.Header().Set("Content-Length", strconv.FormatInt(resp.GetSize(), 10)) } return resp.GetData(), err }) if _, err := io.Copy(w, rr); err != nil { return fmt.Errorf("copy rpc data: %v", err) } return nil }