i created app for forwarding sms to telegram group chat
app design
two inputs bottoken + chatid
i want app get chat dynamically from api link

https://api.telegram.org/bot<YourBOTToken>/getUpdates

when i click button (get chat id) then execute the link and get chat id from json result.

{
    "update_id": 8393,
    "message": {
        "message_id": 3,
        "from": {
            "id": 7474,
            "first_name": "AAA"
        },
        "chat": {
            "id": <group_ID>,
            "title": "<Group name>"
        },
        "date": 25497,
        "new_chat_participant": {
            "id": 71, 
            "first_name": "NAME",
            "username": "YOUR_BOT_NAME"
        }
    }
}

i have made sending to telegram successfully i need this step before sending

this is my code for sending messages to telegram

public class RetrieveFeedTask extends AsyncTask<String, Void, Void> {

    protected Void doInBackground(String... arg0) {
        String a = arg0[0].toString();
        String b = arg0[1].toString();
        String c = arg0[2].toString();

        String urlString = "https://api.telegram.org/bot%s/sendMessage?chat_id=%s&text=%s";
        String apiToken = a;
        String chatId = b;
        String text = c;

        //https://api.telegram.org/bot664321744:AAGimqEuidlzO84qMoY1-_C-1OsNWRQ8FyM/sendMessage?chat_id=-1001349137188&amp&text=Hello+World
        urlString = String.format(urlString, apiToken, chatId, text);

        try {
            URL url = new URL(urlString);
            URLConnection conn = url.openConnection();
            InputStream is = new BufferedInputStream(conn.getInputStream());

            //getting text, we can set it to any TextView
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            String inputLine = "";
            StringBuilder sb = new StringBuilder();
            while ((inputLine = br.readLine()) != null) {
                sb.append(inputLine);
            }
            //You can set this String to any TextView
            String response = sb.toString();

        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}

and i start send by this code from mainactivity

new RetrieveFeedTask().execute(apiToken, chatIds, text);

now i want to know how get chat id from telegram by bot token dynamically from application not manually

i searched all answers and topics related to my question and i didn’t found my answer clearly.