Raspberry PI code not working

HI there the following code is not compiling on Raspberry Pi:

int value3 =0;
int main(int argc, char *argv[])
     thinger_device thing(USER_ID, DEVICE_ID, DEVICE_CREDENTIAL);

    // define thing resources here. i.e, this is a sum example
   thing["in_out"] = [](pson& in, pson& out)
       // out["sum"] = (int) in["value1"] + (int) in["value2"];
        //out["mult"] = (int) in["value1"] * (int) in["value2"];
       value3= in["value1"];
       int value4= in["value2"];

       std::cout << "Value 1= ";   
       auto s = std::to_string(value3);
       std::cout << s;
       std::cout << "\n";
       std::cout << "Value 2= ";   
       auto t = std::to_string(value4);
       std::cout << t;
       std::cout << "\n";
       out["sum"] = value3 + value4;
       out["mult"] = value3 * value4;
       out["Level"]= value3;

       if (value3==1000)
        std::cout << "Alarm!!!!!!!"; 
         std::cout << "\n";

   return 0;

It is about the thing.call_endpoint line.

Much appreciated if you could advise what is going wrong here. For me it is just to understand the concept of dealing with the calls.



try to define

     thinger_device thing(USER_ID, DEVICE_ID, DEVICE_CREDENTIAL);

outside the main, just below the value3. This way, it can be used inside the lambda to call the endpoint.

Hope it helps!