• How to send custom message from device to host using script node?

I want to create a custom message and it seems like I need to use a buffer message.

How could I send a message that is a vector of dictionaries in the Script Node to my C++ project. How would I cast the buffer data to the appropriate C++ structure?

    Hi AdamPolak
    Sorry I am unfamiliar with cpp. Chat gpt gave me the following script:

    #include <iostream>
#include <string>
#include <vector>
#include <cstring>

struct MyData {
    std::string key1;
    int key2;
};

int main() {
    // Assuming 'buffer' is the received buffer message
    std::string buffer = "...";  // Replace '...' with the actual buffer message

    // Extract the size of the buffer from the first 4 bytes
    std::uint32_t buffer_size;
    std::memcpy(&buffer_size, buffer.data(), sizeof(buffer_size));

    // Extract the data from the buffer
    std::string data(buffer.data() + sizeof(buffer_size), buffer_size);

    // Deserialize the JSON data to vector of MyData structures
    std::vector<MyData> my_data;
    // ... Perform deserialization from 'data' to 'my_data' using your preferred JSON library

    // Print the received data
    for (const auto& item : my_data) {
        std::cout << "key1: " << item.key1 << ", key2: " << item.key2 << std::endl;
    }

    return 0;
}

Let me know if this helps,
Jaka