Telegram Crypto Price Bot

Introduction

Telegram bot for displaying cryptocurrencies prices and charts based on pyrogram and matplotlib libraries.
Data is retrieved using CoinGecko APIs.
It is possible to show coin information either on demand (by manually calling a command) or periodically using background tasks.
A single bot instance can be used with multiple coins and in multiple groups.
The usage of the bot is restricted to admins, in order to avoid users to flood the chat with price requests.

Setup

Create Telegram app

In order to use the bot, in addition to the bot token you also need an APP ID and hash.
To get them, create an app using the following website: https://my.telegram.org/apps.

Installation

The package requires Python 3, it is not compatible with Python 2.
To install it:

• Using setuptools:

    python setup.py install
  

• Using pip:

    pip install telegram_crypto_price_bot
  

To run the bot, edit the configuration file by specifying the API ID/hash and bot token. Then, move to the app folder and run the bot.py script:

cd app
python bot.py

When run with no parameter, conf/config.ini will be the default configuration file (in this way it can be used for different groups).
To specify a different configuration file:

python bot.py -c another_conf.ini
python bot.py --config another_conf.ini

Of course, the app folder can be moved elsewhere if needed.

Configuration

An example of configuration file is provided in the app/conf folder.
The list of all possible fields that can be set is shown below.

Name	Description
[pyrogram]	Configuration for pyrogram
session_name	Session name of your choice
api_id	API ID from https://my.telegram.org/apps
api_hash	API hash from https://my.telegram.org/apps
bot_token	Bot token from BotFather
[app]	Configuration for app
app_is_test_mode	True to activate test mode false otherwise
app_lang_file	Language file in XML format (default: English)
[task]	Configuration for tasks
tasks_max_num	Maximum number of running tasks (totally, in all groups). Default: 20.
[coingecko]	Configuration for Coingecko
coingecko_api_key	Key for using Coingecko APIs. If not specified, the free APIs will be used. Default: empty string.
[chart]	Configuration for price chart
chart_display	True to display price chart, false otherwise (default: true). If false, all the next fields will be skipped.
chart_date_format	Date format for price chart (default: %%d/%%m/%%Y %%H:00)
chart_background_color	Background color for price chart (default: white)
chart_title_color	Title color for price chart (default: black)
chart_frame_color	Frame color for price chart (default: black)
chart_axes_color	Axes color for price chart (default: black)
chart_line_color	Line color for price chart (default: #3475AB)
chart_line_style	Line style for price chart (default: -). Same as matplotlib line styles: - -- -. :
chart_line_width	Line width for price chart (default: 1)
chart_display_grid	True to display price chart grid, false otherwise (default: true). If false, all the next fields will be skipped.
chart_grid_max_size	Maximum size for price chart grid (default: 4)
chart_grid_color	Line color for price chart grid (default: #DFDFDF)
chart_grid_line_style	Line style for price chart grid (default: --). Same as matplotlib line styles: - -- -. :
chart_grid_line_width	Line width for price chart grid (default: 1)
[price]	Configuration for price info
price_display_market_cap	True to display market cap, false otherwise (default: true)
price_display_market_cap_rank	True to display market cap rank, false otherwise (default: false)
[logging]	Configuration for logging
log_level	Log level, same of python logging (DEBUG, INFO, WARNING, ERROR, CRITICAL). Default: INFO.
log_console_enabled	True to enable logging to console, false otherwise (default: true)
log_file_enabled	True to enable logging to file, false otherwise (default: false). If false, all the next fields will be skipped.
log_file_name	Log file name
log_file_use_rotating	True for using a rotating log file, false otherwise
log_file_max_bytes	Maximum size in bytes for a log file. When reached, a new log file is created up to log_file_backup_cnt. Valid only if log_file_use_rotating is true.
log_file_backup_cnt	Maximum number of log files. Valid only if log_file_use_rotating is true.
log_file_append	True to append to log file, false to start from a new file each time. Valid only if log_file_use_rotating is false.

All the colors can be either a name or a RGB color in format #RRGGBB (same as matplotlib colors).
Chart and price configurations will be applied to all coin information in all groups. It's not possible to configure a single coin.

Supported Commands

List of supported commands:

• /help: show this message
• /alive: show if bot is active
• /pricebot_set_test_mode true/false: enable/disable test mode
• /pricebot_is_test_mode: show if test mode is enabled
• /pricebot_version: show bot version
• /pricebot_get_single COIN_ID COIN_VS LAST_DAYS [SAME_MSG]: show chart and price information of the specified pair (single call).
  Parameters:
  • COIN_ID: CoinGecko ID
  • COIN_VS: CoinGecko vs_currency
  • LAST_DAYS: Last number of days to show price chart
  • SAME_MSG (optional): true for sending chart and price information in the same message (price information will be a caption of the chart image), false to send them in separate messages. Default value: true.
• /pricebot_task_start PERIOD_HOURS START_HOUR COIN_ID COIN_VS LAST_DAYS: start a price task in the current chat. If the task COIN_ID/COIN_VS already exists in the current chat, an error message will be shown. To start it again, it shall be stopped with the pricebot_task_stop command.
  Parameters:
  • PERIOD_HOURS: Task period in hours, it shall be between 1 and 24
  • START_HOUR: Task start hour, it shall be between 0 and 23
  • COIN_ID: CoinGecko ID
  • COIN_VS: CoinGecko vs_currency
  • LAST_DAYS: Last number of days to show price chart
• /pricebot_task_stop COIN_ID COIN_VS: stop the specified price task in the current chat. If the task COIN_ID/COIN_VS does not exist in the current chat, an error message will be shown.
  Parameters:
  • COIN_ID: CoinGecko ID
  • COIN_VS: CoinGecko vs_currency
• /pricebot_task_stop_all: stop all price tasks in the current chat
• /pricebot_task_pause COIN_ID COIN_VS: pause the specified price task in the current chat. If the task COIN_ID/COIN_VS does not exist in the current chat, an error message will be shown.
  Parameters:
  • COIN_ID: CoinGecko ID
  • COIN_VS: CoinGecko vs_currency
• /pricebot_task_resume COIN_ID COIN_VS: resume the specified price task in the current chat. If the task COIN_ID/COIN_VS does not exist in the current chat, an error message will be shown.
  Parameters:
  • COIN_ID: CoinGecko ID
  • COIN_VS: CoinGecko vs_currency
• /pricebot_task_send_in_same_msg COIN_ID COIN_VS true/false: enable/disable the sending of chart and price information in the same message. If the task COIN_ID/COIN_VS does not exist in the current chat, an error message will be shown.
  Parameters:
  • COIN_ID: CoinGecko ID
  • COIN_VS: CoinGecko vs_currency
  • flag: true for sending chart and price information in the same message (price information will be a caption of the chart image), false to send them in separate messages
• /pricebot_task_delete_last_msg COIN_ID COIN_VS true/false: enable/disable the deletion of last messages for the specified price task in the current chat. If the task COIN_ID/COIN_VS does not exist in the current chat, an error message will be shown.
  Parameters:
  • COIN_ID: CoinGecko ID
  • COIN_VS: CoinGecko vs_currency
  • flag: true or false
• /pricebot_task_info: show the list of active price tasks in the current chat

By default:

• a price task will send chart and price information in the same message. This can be enabled/disabled with the pricebot_task_send_in_same_msg command.
• a price task will delete the last sent message when sending a new one. This can be enabled/disabled with the pricebot_task_delete_last_msg command.

The task period starts from the specified starting hour (be sure to set the correct time on the VPS), for example:

• A task period of 8 hours starting from 00:00 will send the message at: 00:00, 08:00 and 16:00
• A task period of 6 hours starting from 08:00 will send the message at: 08:00, 14:00, 20:00 and 02:00

In case of API errors (e.g. network issues or invalid coin ID) an error message will be shown.

Examples

Show the price of BTC/USD of the last 14 days in the current chat (single call):

/pricebot_get_single bitcoin usd 14

Show the price of ETH/BTC of the last 30 days periodically every 8 hours starting from 10:00 in the current chat:

/pricebot_task_start 8 10 ethereum btc 30

Pause/Resume/Stop the previous task:

/pricebot_task_pause ethereum btc
/pricebot_task_resume ethereum btc
/pricebot_task_stop ethereum btc

Set task so that it sends chart and price information in the same message:

/pricebot_task_send_in_same_msg ethereum btc true

Set task so that it doesn't delete the last sent message:

/pricebot_task_delete_last_msg ethereum btc false

Run the Bot

It'd be better if the bot is an administrator of the group. This is mandatory if it needs to delete the last sent messages.
In order to display prices periodically, the bot shall run 24h/24h so it's suggested to run it on a VPS (there is no performance requirements, so a cheap VPS will suffice).

Test Mode

During test mode, the bot will work as usual but the task period will be applied in minutes instead of hours. This allows to quickly check if it is working.

Translation

The messages sent by the bot on Telegram can be translated into different languages (the default language is English) by providing a custom XML file.
The XML file path is specified in the configuration file (app_lang_file field).
An example XML file in italian is provided in the folder app/lang.

Image Examples

Example with chart and price information on different messages:

Example with chart and price information on the same message:

License

This software is available under the MIT license.