My telegram bot receives messages sent by user to my bot in private chats but not receives messages sent by users in group chats. Any options/api for getting group chat messages also,.
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6 Answers
Talk to @botfather and disable the privacy mode.
answered Jul 25, 2016 at 11:36
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31take into account that you have to set it off before adding to chat. Otherwise you have to remove it and add it again– ArtiomCommented Nov 7, 2016 at 11:53
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4That is not really true, you can do it before, after, during... whenever you want. Commented Aug 1, 2017 at 15:15
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13I'm not sure, but kicking the bot and adding it back solved my problem. Took me hours= =. you have to set it off before adding to chat– SCaffreyCommented Mar 22, 2018 at 16:14
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2Another note is that the bot MUST be an admin on that group, regardless of the privacy settings. Otherwise, it will NOT be able to read any of the group messages. Commented Jun 1, 2019 at 15:52
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7No, either the bot needs to be an admin OR privacy mode needs to be disabled. Commented Jun 11, 2019 at 7:23
Sequence within a BotFather chat:
You: /setprivacy
BotFather: Choose a bot to change group messages settings.
You: @your_name_bot
BotFather: 'Enable' - your bot will only receive messages that either start with the '/' symbol or mention the bot by username.
'Disable' - your bot will receive all messages that people send to groups.
Current status is: ENABLED
You: Disable
BotFather: Success! The new status is: DISABLED. /help
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1I've spent like 2 hours trying to figure this out. Thanks bud! Commented Feb 27, 2018 at 8:49
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16I want to make an addition. I have noticed that if you give your bot the administrative rights in the group, than it has ability to see all messages, regardless of /setprivacy setting.– GoomanCommented Apr 20, 2018 at 18:50
By default A Bot will receive only messages addressed to it by any user directly via posting by /command@YourBot any message you send.
After that it vill be available via getUpdates API call.
In browser it will be:
https://api.telegram.org/botToken/getupdates
Find the related message in output JSON and grab chatId. It will allow you to answer back with:
https://api.telegram.org/botToken/sendmessage?chat_id=123456788&text=My Answer
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I'm getting {"ok":false,"error_code":401,"description":"Unauthorized"} when I call getupdates– EnriqueCommented Dec 25, 2019 at 12:50
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OK, that's because it requires offset and limit parameters– EnriqueCommented Dec 25, 2019 at 23:18
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try this https: //api.telegram.org/bot{token}/sendMessage?chat_id=<chat_id>&text=<Enter your text here>– fperezCommented Jan 13, 2023 at 15:31
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This is the solution for whoever is privacy concern. I explained it with more details here: stackoverflow.com/a/78436037/1198404– chelderCommented May 6 at 10:36
Make your bot as an admin in your group.
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If we 'Disable' privacy, your bot will receive all messages that people send to groups. If you want to avoid that: keep privacy Enable and make the bot admin (it works with the least admin permissions). Then, mention the bot eg @my_bot_name is the solution I found.– chelderCommented May 4 at 10:20
You can access all avaliable settings from all of your bots by sending /mybots to Botfather. Choose the bot, then Bot Settings and Group Privacy. If its disable (default), you can tap on Turn off.
Now its possible to receive the chat history using GetUpdates. This can be done via HTTP API or the frameworks. For example, in C# (.NET Core) like this:
var bot = new TelegramBotClient(ApiToken);
var updates = bot.GetUpdatesAsync().Result;
foreach(var update in updates) {
Console.WriteLine($"{update.ChannelPost.Date} {update.ChannelPost.Text}");
}
But keep in mind that this feature has some kind of perfect forward secrecy implemented. So you only get messages that were send after group privacy is disabled. As a result, the GetUpdates result is empty until some post was made.
if you added your bot before disable the privacy mode, you should remove the bot from the group and add it again
