This is a simple example of a program that extracts all (textual in this case) messages from a telegram channel and send them as a file to a specified chat.
- scraping(chat_id): given the channel unique ID (int type, starting with
-100), it saves all the messages in a file namedMessagesFromChat{chat_id}.txt. - send_results(chat_id, chat_file): it sends to
chat_idthe file containing the messages from the chatchat_file. Both arguments are unique IDs (int type). In case of groups and channel ID starts with-100, in case of private chats, ID starts with-. It must be used after the use ofscraping()function for the relative chat.
In order to be able to run this script, the prerequisite is having a telegram account and a API setup. Click Here to obtain your unique API keys, if you don't have them yet. Store App api_id and App api_hash in a safe place as you will be needing them further.
Once you have your API keys, you have to create a new folder called pyrogram and within that folder you have to create a .env file to save your API keys. File must have this template:
TG_API_ID="Your api id"
TG_API_HASH="Your api hash"
Now your folder should look like this:
.
└── pyrogram
└── .env
You will need to install a few packages. Copy and paste these lines on your command prompt:
pip install os-sys
pip install pyrogram
pip install python-dotenv
pip install tgcrypto
Once everything is done, you can copy the python script of this repository into your pyrogram directory.
You can get unique chat IDs from your telegram client, if you are using one that shows it (some examples are Telegram Foss, Nekogram, Forkgram). Alternatively, from the web version you can obtain it from the url, when you open the chat. It should be something like web.telegram.org/z/#-123456789. If the chat is a channel or a group, for the API call to work you have to add 100 between the - and the first number. in this case, -100123456789. More information on Telegram ID Github.
To configure the script, you'll have to change CHAT_ID_1 field. You can also add as many chat IDs you want, and call the functions for every chat. Remember to set the right function parameters in the last two lines of code.
On running the script for the first time it asks for your telegram number. Insert it and confirm the action in your Telegram account. This step won't need to be repeated.
My suggestion is to run the script from the parent directory, in order to keep separated source code and output files. This way, you will have the resulting folder looking like this:
.
├── MessagesFromChat-1001111111111.txt
├── MessagesFromChat-1002222222222.txt
└── pyrogram
├── my_account.session
└── pyrogram_starter.py