Discussion of article "How to create bots for Telegram in MQL5" - page 3

look in the

<Telegram.mqh>

{ 
   "ok":true,
   "result":[ 
      { 
         "update_id":349778698,
         "message":{ 
            "message_id":2,
            "from":{ 
               "id":198289825,
               "first_name":"Andriy",
               "last_name":"Voitenko",
               "username":"avaticks"
            },
            "chat":{ 
               "id":198289825,
               "first_name":"Andriy",
               "last_name":"Voitenko",
               "username":"avaticks",
               "type":"private"
            },
            "date":1459775817,
            "text":"\/start"
         }
      }
   ]
}

Switch your channel to public mode. Or using chatID (not channel name) for communication with your private channel.

The channel is public and I getting the same result using channel name or ID. See screenshot

Do you use the latest release of Telegram.mqh and Jason.mqh?

I worked with the versions from your article. I have downloaded the latest version of jason.mqh v1.09 by Sergeev. I cannot locate the latest version of Telegram.mqh

Yesterday, I added a '?' before 'chat_id' in the code below following the examples found in other websites about telegram bots. Today, I decided to return to your original code by undoing the '?'. Now it works as expected sending the OnInit message to the channel. Thanks.

//+------------------------------------------------------------------+
   int SendMessage(const string _channel_name,
                   const string _text,
                   const bool   _as_HTML=false,
                   const bool   _silently=false)
     {
      //--- check token
      if(m_token==NULL)
         return(ERR_TOKEN_ISEMPTY);

      string name=StringTrim(_channel_name);
      //if(StringGetCharacter(name,0)!='@')          name="@"+name;

      string out;
      string url=StringFormat("%s/bot%s/sendMessage",TELEGRAM_BASE_URL,m_token);
      string params=StringFormat("chat_id=%s&text=%s",name,UrlEncode(_text));
      if(_as_HTML)
         params+="&parse_mode=HTML";
      if(_silently)
         params+="&disable_notification=true";
      int res=PostRequest(out,url,params,WEB_TIMEOUT);
      return(res);
     }

Dear Andrey, 

thanks a lot for your work. I've installed your files and configured an expert that does the following:

1) the expert sends messages to the bot every x minutes (just for test) ,

2) i read the message on telegram and click "open trade" on the keyboard of telegram client,

3) the metatrader opens the trade (if possible).

Everything works fine but after a while the bot is not anymore reachable; to make it work again i have to wake up him by pressing some command on the keyboard menu (for example charts or /start or account info....). The metatrader says "bad request:chat not found" but if I wake up the bot again it works perfectly for one hour or more but then it stops.

I've created the bot as you have suggested (with botFather). How can I solve this issue?

Thanks again

Hi Andrey,

why the bot keep getting Error: HTTP request failed, tq

Maybe they changed the protocol.

Have you checked Telegram API ?

I debugged the 'Telegram_Bot_EA' on your PC using TeamViewer and have found that WebRequest() returned -1. _LastError = 5203.

But I dont know why. Perhaps your firewall blocks TCP packets.