Method ReadMetadata

cpp/src/arrow/flight/client.cc:300–305

      : stream_(std::move(stream)) {}

  Status ReadMetadata(std::shared_ptr<Buffer>* out) override {
    if (!stream_->ReadPutMetadata(out)) {
      return stream_->Finish(Status::OK());
    }
    return Status::OK();
  }

 private:
  std::shared_ptr<internal::ClientDataStream> stream_;