I am using telethon and I have a question that how telegram knows where to send the request?
I have created a bot on telegram. When the user sends a message to the bot then how telegram knows where to redirect that message. I run my program in my local and also on a server. But in the code, we don't mention anything about the server. But the program is working fine on it also.
Need to understand the flow.
Telethon uses what’s called MTProto to communicate with Telegram servers. It connects just like an actual client would (like TDesktop or Webogram, for instance). Once the connection is made, instead of using a phone number, the authentication is made with the bot token. Then, everything else is standard procedure: Ask Telegram for any new message and Telegram responds with all the messages people sent to the bot or to groups your bot is in (if you have that enabled through BotFather). To cut down on traffic, if there’s an open connection, Telegram may send updates automatically.
That’s the general process flow. For more in-depth explanation of how MTProto works, all the technical information is available on their website. The portion about updates is here: https://core.telegram.org/api/updates
Every handler have an arg, i named it here event , e.g:
#client.on(events.NewMessage)
asynce def handler(event):
This event have all information in it, text of message, message id and etc.
Related
I have an application which sends notification to its subscribers through telegram.
For someone to subscribe, he needs to add his request in my website and after that, to identify his self, he needs to start a conversation with my bot using a secret code generated by the server.
For example, whenever he completes his request he should click a button which leads him out of my website and to telegram's chat (using ), in the background, the website is making long-pool requests to the server to check whether the server received a notification from telegram with this secret code abcd and to get the chat id assosiated with the request so it could store the request with this specific chat id.
The process seems to work just fine for many users, but for minor amount of users it's not working, they are starting a conversation with my bot but not getting any feedback about a success. It seems as whenever they leave the website (or the browser) and follow the path of the link (https://t.me/mybot?start=abcd) straight to telegram app, the long-pool is being stopped.does that happen sometimes when long-polling?
i'm trying to create a bot which can read/receive all messages in a specific channel and send them to me .
my problem here is that i can't find a way to access those messages in my bot
important thing is:
i'm not admin or creator of that channel
i don't want to ask the creator to add my bot as administrator
i've searched in google but i wasn't able to find a solution
and i'm also sure that it is possible to do it, because there are already some junction bots with exact same performance .
any references or suggestions are appreciated .
As already pointed out in the Telegram group of python-telegram-bot, bots can't receive messages from channels where they are not an admin. If you want something like this, you'll have to use a user bot, e.g. a program that controls your private Telegram account (in contrast to controlling a bot account). See here for some info on user bots.
Note that also the provider that you linked seems to be using userbots behind the scenes. More precisely, the docs on the so called "DirectConnection" state that you need to enter a phone number (associated to a telegram account) and then "Follow the instructions" which probably just means to enter the verification code that Telegram sends you. Phone number + verification code is exactly what is needed to control your private Telegram account.
Disclaimer: I'm currently the maintainer of python-telegram-bot.
I am using Telegram bot API with AWS Lambda and Zappa.
Everything was working fine. Until I realised that bot's webhook is being called everytime whenever a message is sent by anyone in the group.
I want to limit this webhook requests, as Lambda allows for only 1 million calls which is sufficient if bot is invoked, but only when /commands are called.
As I have to pin and edit messages using bot, that's why administrator permission is must.
I just want my bot to respond only to /commands along with administrator rights.
Please help me in tackling this issue.
I am assuming you added your bot to a Telegram group. In this case, the first thing that you need is group id. This should help: https://github.com/GabrielRF/telegram-id#web-group-id
And then you need to write a function that identifies the status of a chat member. You can do this using getChatMember method in Telegram Bots API.
If the chat member's status is "creator" or "administrator" then the response is sent to that user.
There are 2 things you need to do.
setPrivacy for your bot - go to BotFather chat and use the /setPrivacy command which gives you the ability to set:
'Enable' - your bot will only receive messages that either start with
the '/' symbol or mention the bot by username. (Should be default)
'Disable' - your bot
will receive all messages that people send to groups. Current status
is: DISABLED.
When setting the commands for the bot, set the BotCommandScopeAllChatAdministrators scope which should limit the use of the command only to the admins of the chat.
I'm developing a bot in telegram , here is my problem:
I have some posts in my channel which some inline_keyboards are attached to them. when a user press the button , next events happen in a bot and some messages show to a user. if user has been started the bot before , there is no problem , if not I have error. how should I check the user is member of my bot or not to handle this problem???
try to use sendMessage() API and send a message to user. After that telegram will response a status tell you whether success or not.
if started bot receive receive is ok,
if not started bot receive is nothing.
{"ok":true,"result":{"message_id":9999,"from":{"id":00000000,"is_bot":true,"first_name":"mybot","username":"mybot"}}}
like that, good luck.
There is no way to check if bot can talk to user or not without send message.
You can use url with https://t.me/Bot?start=some_data format, and you will receive /start some_data, please try this link yourself.
The problem with this approach is that if a lot of users do the same, telegram starts to throttle your callbacks :( ... it would be so much easier if you could just read that information somewhere...
I'd like to set up a authentication through telegram using it's deep linking api.
In order to authenticate, in my app I ask users to click on a link like:
https://telegram.me/myloginbot?start=somesecretkey
If I understand the docs correctly, I should expect the bot to echo back somesecretky to my server.
Now, this step of the docs is unclear to me:
Configure the webhook processor to query Memcached with the parameter that is passed in incoming messages beginning with /start
If I understand correctly, I need to configure myloginbot so that when the user clicks start button on the bot's page, the bot echos back to my server a url containing somesecretkey and some user info. But I don't know how to do so.
In this answer, it is suggested that:
Let the bot retrieve the username by querying the database or key-value storage for unique_code.
But I don't know how can I make the bot query the (presumably remote) database.
So really appreciate your hints.
My understanding to deep linking is this:
You have a database of users. Each user has an ID. Suppose you want your Telegram bot to communicate with user 123. But you don't know his Telegram chat_id (which the bot needs in order to send messages to him). How do you "entice" him to talk to the bot, thus revealing his chat_id? You put a link on a web page.
But the link has to be "personalized". You want each user to press on a slightly different link, in order to distinguish them. One way to do that is to embed user ID in the link. However, user IDs are not something you want to expose, so you generate a (temporary) key associated with each user ID, and embed that key in the link. For example, user 123 has the key abcde. His personalized link will be:
https://telegram.me/myloginbot?start=abcde
Someone clicks on the link, and is led to a conversation with your bot. At the same time (or when he presses the START button), your bot will receive a message:
/start abcde
On receiving that message, the bot sees that abcde is associated with user 123. Telegram chat_id can also be extracted from the message. Now, the bot knows user 123's chat_id, and can send him messages afterwards.
To experiment with deep linking, you need a bot that can handle /start messages, supported by a "datastore" that remembers the key-ID associations. When Telegram docs say "memcache", they just mean something that stores the key-ID associations. For an experiment, it may be as simple as a dictionary, or an associative array. In real life, it may be Memcached (the memory caching software), or a database table.
If you use Python, I recommend taking a look at telepot, a Python framework for Telegram Bot API. It does not do deep linking per se, but it does help you in receiving messages for a bot, and other bot operations in general. I also have an example there demonstrating how to output a personalized link, set up a webhook, and parse the incoming /start command with the key.