Convert exchange name (or list of exchanges names) to name (names) from DB Args: :param exchanges: <str> (or <list> of <str>'s)

Check existence of coin/exchange pair in db and if not exist add them. Args: :param coin: <string> coin name (in

Update price of specific coin on specific exchange in db Args: :param coin: <string> coin name (in db)

Generate notification text Args: :param data: <list> of lists that contains 4 items: [coin name, first exchange name,

Return bid and ask price on specific coin/exchange pair. Args: :param coin: <string> coin name (on exchange)

Return bid and ask prices of specific coins on specific exchange. Args: :param coins: <list> of <string> coin name (in d

If bid price on one of two exchanges is bigger than ask price on another exchange, than return tuple with next structure: (coin name, bid exc

Return list of lists that contains coin name, two exchanges names, and diff in percent between bid and ask on coin on this exchanges (diff al

Retrieve data from exchange and return best bid and ask prices on exchange coins. Args: :param coins: <list> of <string> coin na

Return coin's data Args: :param coin: <string> coin name Returns: :return: <dict> with coin's data or None if c

Return user's data Args: :param chat_id: <int> or <string> user's chat id Returns: :return: <dict> with user's

Clean history from old prices

Start function of Crawler (start asynchronous load_and_update() tasks for all available combinations of coins and exchanges).

Check availability of coin/exchange pair. If available start infinite loop that gets new coin prices from exchange site and updates t

Check availability of coins on exchange. For all available start infinite loop that gets new coins prices from exchange site and upda

Retrieve data from exchange and return best bid and ask prices on specific coin. Args: :param coin: <string> coin name (on excha

Send all users specific text (in 'msg_time_limit' can be send only 'msg_num_limit' messages) Args: :param bot: <telegram.b

Remove the job if the user changed their mind

Add the job to the queue

Add new coin with emtpy exchange list to collection Args: :param coin: <string> coin name

Add coin to coins list by which the bot will notify the user

Add coin to user's list and send message to user about operation's result

Add new coin with emtpy exchange list to collection Args: :param coin: <string> coin name

Add new exchange to coin's list Args: :param coin: <string> coin name :param exchange: <string> exchange name

Add exchange to exchanges list by which the bot will notify the user

Add exchange to user's list and send message to user about operation's result

Add new exchange with empty coin's price history to coin's list Args: :param coin: <string> coin name :param exchange: <st

Add coin's price on exchange and time when this price get to history Args: :param coin: <string> coin name :param exchange:

Begin dialog for change coin's list Args: :param bot: <telegram.Bot> bot instance :param update: <telegram.update.Update

Begin dialog for change exchange's list Returns: :return: change exchange's list dialog identifier

Add new value to user's list Args: :param chat_id: <int> or <string> user's chat id :param list: <string> list name

Add new user to collection Args: :param msg: <telegram.message.Message> telegram's message with user data :param email:

Open the menu for alerts settings Returns: :return: alerts settings menu identifier

Return user to alerts menu Returns: :return: alerts menu identifier

Return user to settings menu Returns: :return: settings menu identifier

Send message to user when bot gets unavailable coin

Return user to the main menu if user text something unexpectable

Throw out user from conversation if error occur

Send message to user when bot gets unavailable exchange

Return coin's data Args: :param coin: <string> coin name Returns: :return: <dict> with coin's data or None if coin does

Return coin's data where coin contains specific exchange Args: :param coin: <string> coin name :param exchange: <string>

Return coin's data where coin contains specific exchange Args: :param coin: <string> coin name :param exchange: <string> exc

Return coin's price history on exchange Args: :param coin: <string> coin name :param exchange: <string> exchange name

Show user about and get registration text if user is unauthorized

Return user's data Args: :param email: <string> user's email Returns :return: <dict> with user's data or None

Return subscriber's e-mail Args: :param key: <string> Returns: :return: <string> user's e-mail or None if subs

Return settings for specific user Args: :param chat_id: <int> or <string> user's chat id Returns: :return: <dict> w

Return all users data Returns: :return: <list> of dict with user's data

Send static message for interval setting Returns: :return: interval menu identifier

Send static helper message for interval setting

Send notification to user Args: :param bot: <telegram.Bot> bot instance :param job: <telegram.ext.jobqueue.Job> user's j

Remove coin from coins list by which the bot will notify the user

Remove coin from user's list and send message to user about operation's result

Remove exchange to exchanges list by which the bot will notify the user

Remove exchange from user's list and send message to user about operation's result

Remove value from user's list Args: :param chat_id: <int> or <string> user's chat id :param list: <string> list name

Notify users about bot's restart and restart users notifications Args: :param dispatcher: <telegram.ext.dispatcher.Dispatcher> b

Set interval between notifications in seconds

Begin the dialog with for setting an interval value Args: :param bot: <object> bot instance :param update: <dict> updat

Set the threshold between cryptocurrencies by which the bot will notify the user

Begin the dialog with for setting an threshold value Returns: :return: settings menu identifier

Send message to user with all available coins

Send message to user with all available exchanges

Send message to user with his current settings

Show the user's coins list

Show user's exchanges list

Main entry point of the bot. This command starts the bot interface and checks user authorization. Args: :param bot: <object> bot

Switch notifications on/off

Send static message for threshold setting Returns: :return: threshold menu identifier

Send static helper message for threshold setting

Update coin's price on exchange Args: :param coin: <string> coin name :param exchange: <string> exchange name :

Update coin's history on exchange Args: :param coin: <string> coin name :param exchange: <string> exchange name :pa

Update user's setting with new value Args: :param chat_id: <int> or <string> user's chat id :param setting: <string> se