ESP32 Server

#include <AsyncTCP.h>
#include <WiFi.h>
#include <ESPAsyncWebServer.h>

using string = const char*;

class WifiNetwork
{
public:
    struct Credentials
    {
        string ssid;
        string password;
    };
private:
    const int loadingLedGpio = 32;
    const int connectionBlinkInterval = 250;
    WiFiClass wifi;

    void connect(const Credentials& credentials)
    {
        WiFi.mode(WIFI_STA);
        wifi.begin(credentials.ssid, credentials.password);
        auto lightsUp = true;
        while (wifi.status() != WL_CONNECTED)
        {
            digitalWrite(loadingLedGpio, lightsUp ? HIGH : LOW);
            Serial.print(".");
            delay(connectionBlinkInterval);
            lightsUp = !lightsUp;
        }
        digitalWrite(loadingLedGpio, LOW);
    }

    void printNetworkInfoSummary()
    {
        Serial.println(" Successfully established!");
        Serial.printf("RRSI: %d\n", RSSI());
    }

public:
    WifiNetwork(const Credentials& credentials)
    {
        pinMode(loadingLedGpio, OUTPUT);
        Serial.write("Connecting to WiFi .");
        connect(credentials);
        printNetworkInfoSummary();
    }

    string IPAddress()
    {
        return wifi.localIP().toString().c_str();
    }

    uint8_t RSSI()
    {
        return wifi.RSSI();
    }
};

class SagittariusStation
{
private:
    AsyncWebServer server;
    string name = "\nSagittarius Station 1.0";
    static void page404(AsyncWebServerRequest* request)
    {
        request->send(
            404,
            "text/plain",
            "404 - Page not found"
        );
    }
public:
    SagittariusStation(WifiNetwork& network, const int port = 80) :
        server(port)
    {
        Serial.println(Name());
        Serial.printf("Starting up on %s:%d", network.IPAddress(), port);
        server.on("/", HTTP_GET, [](AsyncWebServerRequest* request)
        {
            request->send(
                200,
                "text/plain",
                "Hello, world"
            );
        });
        server.on("/about", HTTP_GET, [this](AsyncWebServerRequest* request)
        {
            request->send(
                200,
                "text/plain",
                name
            );
        });
        server.onNotFound(page404);
        server.begin();
    }

    string Name()
    {
        return name;
    }

    AsyncWebServer Server()
    {
        return server;
    }
};


void setup()
{
    Serial.begin(115200);

    WifiNetwork net({ "Milky Way", "heslo_do_wifi" });
    SagittariusStation station(net);
}

void loop()
{

}