Untitled

void data()
{
  if(SPIFFS.exists("/login.html"))
  {
    Serial.println();
  }
  else{
    SPIFFS.begin();
    File f=SPIFFS.open("/login.html","w");
    String s="<html><head><title>AP</title><h1>Welcome to AP page</h1>n";
    s+="</head><body><form name="/myform" action="/login" method="POST">n";
    s+="<input type="text" name="username" placeholder="username"><br/>n";
    s+="<input type="password" name="password" placeholder="password"><br/>n";
    s+="<input type="submit" value="login"></form></body></html>";
    f.println(s);
    f.close();
  }

}

WiFi.mode(WIFI_AP_STA);//Only Access point
  WiFi.softAP(ssid, password);  //Start HOTspot removing password will disable security

  IPAddress myIP = WiFi.softAPIP(); //Get IP address
  Serial.print("HotSpt IP:");
  Serial.println(myIP);

  server.on("/", HTTP_GET, handleRoot);      //Which routine to handle at root location
  server.on("/",HTTP_POST,handlelogin);
  server.onNotFound(handleerror);

  server.begin();

void handleRoot()
  {
    SPIFFS.begin();
    File f=SPIFFS.open("/login.html","r");
    server.send(200, "text/html",f.readStringUntil('EOF'));
  }