Cannot use set_name method with bytes data (C++ clients)

[Tonson Praphabkul]

Hello Everyone

This is the first time I work with c++ gRPC and I got this error when I tried to set the "data" field.

'''

error: no matching function for call to 'helper::Image::set_data(std::vector<unsigned char>&)'

  314 |             image_results->set_data(buffer);

'''

It's okay for another field that were int32.

here is snippet of my photo files

From helper files

message Image {

int32 rows = 1;

int32 cols = 2;

int32 channels = 3;

bytes data = 4;

ImageType type = 5;

}

From my proto files

message InputImages {

repeated helper.Image image = 1;

helper.ImageType image_response_type = 2;

float confThreshold = 3;

float maskThreshold = 4;

int32 camera_id = 5;

helper.Rectangle detection_rect = 6;

}

How I declare buffer

std::vector<uchar> buffer;

The data inside buffer is get from cv::imencode()

Is it's possible to use set_name method or do I need to use another way to send bytes?

Thank you for your attention.

[Tonson Praphabkul]

I just figure that out, the set_data of bytes require you to specify the size.

Here is the correct way to do this.

image_results->set_data(buffer.data(), buffer.size());