how to use telegram API codes? - telegram

i registered in https://my.telegram.org/apps and got api_hash and api_id and public key ,now i want to use this function https://core.telegram.org/method/auth.sendCode
auth.sentCode#efed51d9 phone_registered:Bool phone_code_hash:string send_call_timeout:int is_password:Bool = auth.SentCode;
auth.sentAppCode#e325edcf phone_registered:Bool phone_code_hash:string send_call_timeout:int is_password:Bool = auth.SentCode;
---functions---
auth.sendCode#768d5f4d phone_number:string sms_type:int api_id:int api_hash:string lang_code:string = auth.SentCode;
Query example
(auth.sendCode "79991234567" 1 32 "test-hash" "en")
=
(auth.sentCode
phone_registered:(boolFalse)
phone_code_hash:"2dc02d2cda9e615c84"
)
d16ff372 3939370b 33323139 37363534 00000001 00000020 73657409 61682d74 00006873 e77e812d
=
2215bcbd bc799737 63643212 32643230 39616463 35313665 00343863 e12b7901
how can i use this query example?
and what is this binaries? ==> "d16ff372 3939370b 33323139 ...."

You can't directly start to send queries to Telegram. Creating api_hash and api_id is a basic step to start with Telegram API. Hope you know that Telegram uses its own protocol called 'MTProto'. You can get the detailed discription in Telegram's official website.
As per Telegram Protocol, the Client and Server shares the 'Authorization Key' (which is used for encryption and decryption) using Diffie-Hellman algorithm. For sample please see https://core.telegram.org/mtproto/samples-auth_key. After creating the authorization key successfully, we can start to call Telegram APIs which is called as RPC queries.
You can also refer https://github.com/ex3ndr/telegram-api for implementation.
The hexadecimal data in the example is nothing but the query made by following the algorithm.

You need to start from making a valid Telegram AuthKey.
The patterns and functions you build up along the way while doing this will help you towards building the rest of your Telegram API.
You can start with this here: https://stackoverflow.com/a/32809138/44080
And them work up, step by step until you have the AuthKey as described in these links
https://core.telegram.org/mtproto/auth_key
https://core.telegram.org/mtproto/samples-auth_key
Part of the problem you will initially face is the documentation.
Working through this step by step and getting familiar with the authors writing style is a big help too.

Related

How to send ElectroNeek RPA bot output to Telegram

I have made a ElectroNeek RPA bot that scouts the web for a particular piece of data and then I wish to send it to my Telegram. Any ideas?
Let's break up the task in two parts.
First, in order to send anything to yourself at telegram you would need to create a telegram bot and find out your telegram ID. A good tutorial on that is here. Not all of it is necessary. Read from the beginning to the words "Every Update object consists of Message objects." (You would need some basic python skills to implement this).
After you are done, you would have two numbers:
bot_token = 'XXXXXXXXXX:AAGs7Rapl-NW00ZoQMs6AP6BfhqvlXXXxXX'
bot_chatID = 'XXXXXXXXX'
Second, you would need to create the HTTP request action in your ElectroNeek flow like so:
The URL property should be a string that is comprised of variables obtained in step one, telegram URL and your message, like so:
'https://api.telegram.org/bot' + bot_token + '/sendMessage?chat_id=' + bot_chatID + '&text=' + your_variable
where "your_variable" is the variable you would like to send yourself on Telegram.

Telegram Bot is getting all channel messages

I want to create a telegram bot to send updates to the groups/channel in which it is added. I used BotFather to create a bot. However, in https://api.telegram.org/bot<BOTAPI>/getUpdates, I'm getting all the messages sent in a channel like this: "channel_post":{"message_id":59,"chat":{"id":-1001192794322,"title":"Nseindia","username":"nseindia_updates","type":"channel"},"date":1588581996,"text":"AMBUJACEM : Bear\nAPOLLOHOSP : Bullish Reversal\nKOTAKBANK : Bullish\nMOTHERSUMI : Bear"}}
This is not a problem now, but as time goes, the json file could get very large and could pose a problem.
Is there any way such that I don't get all the messages in the json present in https://api.telegram.org/bot<BOTAPI>/getUpdates
you should specify the update_id of the latest update you've processed as an offset parameter to getUpdates to make them(updates with less update_id) marked processed and that way they wont come up the next time you call getUpdates.
In telegram's Bot API Docs it says:
By default, updates starting with the earliest unconfirmed update are
returned. An update is considered confirmed as soon as getUpdates is
called with an offset higher than its update_id.

A way to catch if user leave chat teleram bot

i find new_chat_participant or left_chat_participant but that work only in group chat.
I've used the new_chat_members event to know weather a new user joined the bot or not. But seems that this event will not be emitted.
But using the message event I will get the below result:
{"message_id":4,"from":{"id":324299944,"is_bot":false,"first_name":"foo","last_name":"bar","language_code":"en"},"chat":{"id":324299944,"first_name":"foo","last_name":"bar","type":"private"},"date":1513786467,"text":"/start","entities":[{"offset":0,"length":6,"type":"bot_command"}]
i write bot with java script and in the google app script .
my oreginal problem is how to find out a user stop or left the bot
For some reason that I was not able to find in the docs telegram doesn't send updates when user leaves the private group. It only does it for public groups (ex supergroups). Another curious thing is that the update message contains "left_chat_participant" and "left_chat_member" objects with the exact same info, probably for some bc
unfortunately currently there is no way to found out the user block the bot. new_chat_participant or left_chat_participant presented in telegram bot API v3 for completely another purpose.

Telegram channel- how to get access_hash?

I try really hard to understand howto use Telegram api with telethon. I have some Channels in Telegram, where i want to delete older Messages. Using inputpeerchannel() i need channel_id (No Problem) and channel_hash. I cant findout howto get this channel_hash by channel_id. Thank you from germany
In order to find channel access_hash, you should resolve channel username. Original MTProto method contacts.resolveUsername#f93ccba3 gets #username and returns channel info including access_hash.
In telethon you need to invoke ResolveUsernameRequest to call the above original MTProto method. You may use this code to resolve username to access_hash:
client = TelegramClient(session_file, api_id=00000, api_hash='XXXXX')
client.connect()
response = client.invoke(ResolveUsernameRequest("your_channel_id"))
print(response.chats[0].access_hash)
client.disconnect()
There are 4 ways to get access hash:
From a Group
From username
From contact list
From chats message
So, if you have id only, there is no way to get access hash

In python-telegram-bot how to get all participants of the group?

In Python-telegram-bot how to get, if possible, the complete list of all participants of the group at which the bot was added?
You can't with current API but you could the join/exit of user members via it's API.
If you check the Message object you find :
new_chat_participant: A new member was added to the group, information about them (this member may be the bot itself)
left_chat_participant: A member was removed from the group, information about them (this member may be the bot itself)
So with this two information you can track the total number of users in your chat and who they are.
The basic strategy would be to store somewhere (like a database) the occurrences of joining and exiting of users from the group.
When a user join the chat store the object User to the storage.
When a user exit the chat delete the object User from the storage.
Well then do the logic as you need.
Also, latest API update allows you to:
telegram.get_chat_members_count(chat_id): Use this method to get the number of members in a chat.
telegram.get_chat_member(chat_id, user_id): Use this method to get information about a member of a chat.
You can combine with new_chat_participant and left_chat_participant strategy, to build information about a group.
More information here:
https://python-telegram-bot.readthedocs.io/en/stable/telegram.bot.html#telegram.Bot.get_chat_members_count
https://python-telegram-bot.readthedocs.io/en/stable/telegram.bot.html#telegram.Bot.get_chat_member
As stated by the others before, it's not possible with the bot API (for now) hence you have to go the telegram API way. Start via https://core.telegram.org/api/obtaining_api_id
I had the same problem and solved it via telethon. A snipped for you to start from:
from telethon import TelegramClient
import asyncio
api_id = 1234 # Your API_ID
api_hash = "1a2b3c456" # Your APP_ID
bot_token = "87319a123b12e321ab1cd" # (via botfather, you can alternatively sign in as a user)
goupid = -120304101020
async def get_users(client, group_id):
async for user in client.iter_participants(group_id):
if not user.deleted:
print("id:", user.id, "username:", user.username)
bot = TelegramClient('bot', api_id, api_hash).start(bot_token=bot_token)
with bot:
asyncio.get_event_loop().run_until_complete(get_users(bot, group_id))
(Example via https://gist.github.com/rokibhasansagar/d727fb30ef5a274cf536bea73260887c)

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