Functional library?

[FernandoGarcia]

Hi!

I found this library in your post on Reddit.

I'm looking for a library to create a broker on ESP32.

Can this library work with Arduino IDE?

After add the cloned files to libraries folder the Arduino IDE says:

Invalid library found in /home/fernandogarcia/Arduino/libraries/gnat: no headers files (.h) found in /home/fernandogarcia/Arduino/libraries/gnat

Also is not possible compile this code available in your gist.

// Responsible for taking all of the data and serving it to any listeners.
// A simple key-value store over mqtt using gnat.

#include "WiFi.h"
#include "Arduino.h"

#include <memory>


// Enables debug messages in gnat-arduino.
//#define ARDUINO_DEBUG 1
#include <gnat/arduino-connection.h>
#include <gnat/packets.h>
#include <gnat/server.h>

  
constexpr uint16_t kPort = 0xe7c;

struct {
  uint8_t connected_clients = 0;
} status;

WiFiServer tcp_server(kPort);

void setup() {
  tcp_server.begin(); 
}

arduino::Clock ard_clock;
gnat::DataStore<std::string> data_store;
gnat::Server<arduino::Connection, gnat::DataStore<std::string>, arduino::Clock> server(&data_store, &ard_clock);

std::list<WiFiClient> active_clients;
void loop() {
  WiFiClient new_client = tcp_server.available();
  if (new_client) {
    active_clients.push_back(new_client);
    status.connected_clients++;
  }
  
  for (auto itr = active_clients.begin(); itr != active_clients.end(); itr++) {
    auto& client = *itr;
    if (!client) {
      // If disconnected remove.
      Serial.println("Lost client, dropping.");
      status.connected_clients--;
      if (itr == active_clients.begin()) {
        active_clients.pop_front();
        break; // go to next itr in this case as the loop can't continue;
      } else {
        // copy iterator, decrement then erase current.
        auto itr_tmp = itr;
        itr--;
        active_clients.erase(itr_tmp);
      }
    }
    
    if(!client.available()) continue;
    
    auto packet = gnat::Packet<Connection>::ReadNext(arduino::Connection(&client));
    if (packet) {
      const auto result = server.HandleMessage(&*packet);
      if (!result.IsOk()) {
        Serial.print("Failed to handle packet:");
        Serial.println(result.message().c_str());
      }
    } else {
      Serial.println("Failed to read packet.\n");
    }
  }
}

The compiling error is:

gnat/arduino-connection.h: No such file or directory

Best regards.