gRPC Stream Hardware.go

syntax = "proto3";
package main;
option go_package=".;hardwaremonitoring";

// HardwareStats is a struct containing information about the systems Memory usage and CPU
message HardwareStats {
    int32 cpu = 1;
    int32 memory_free = 2;
    int32 memory_used = 3;
}
// EmptyRequest is a way to call gRPC functions without any input data
message EmptyRequest {}

// HardwareMonitor is our service, the service is the API, and rpc statements below will be methods that are available by the API
service HardwareMonitor{
    // Monitor will output stats about the hardware on the system host
    rpc Monitor(EmptyRequest) returns (stream HardwareStats) {};
}