import locale
from libqtile.confreader import ConfigError
from libqtile.log_utils import logger
from libqtile.widget.generic_poll_text import GenPollUrl
_DEFAULT_CURRENCY = str(locale.localeconv()["int_curr_symbol"])
_DEFAULT_SYMBOL = str(locale.localeconv()["currency_symbol"])
[docs]
class CryptoTicker(GenPollUrl):
"""
A cryptocurrency ticker widget, data provided by the coinbase.com or the binance.com
API. Defaults to displaying currency in whatever the current locale is. Examples:
# display the average price of bitcoin in local currency
widget.CryptoTicker()
# display it in Euros:
widget.CryptoTicker(currency="EUR")
# or a different cryptocurrency!
widget.CryptoTicker(crypto="ETH")
# change the currency symbol:
widget.CryptoTicker(currency="EUR", symbol="€")
# display from Binance API
widget.CryptoTicker(api="binance", currency="USDT")
Widget requirements: aiohttp_.
.. _aiohttp: https://pypi.org/project/aiohttp/
"""
QUERY_URL_DICT = {
"coinbase": (
"https://api.coinbase.com/v2/prices/{}-{}/spot",
lambda x: float(x["data"]["amount"]),
),
"binance": (
"https://api.binance.com/api/v3/ticker/price?symbol={}{}",
lambda x: float(x["price"]),
),
}
defaults = [
(
"currency",
_DEFAULT_CURRENCY.strip(),
"The baseline currency that the value of the crypto is displayed in.",
),
("symbol", _DEFAULT_SYMBOL, "The symbol for the baseline currency."),
("crypto", "BTC", "The cryptocurrency to display."),
("format", "{crypto}: {symbol}{amount:.2f}", "Display string formatting."),
("api", "coinbase", "API that provides the data."),
]
def __init__(self, **config):
GenPollUrl.__init__(self, **config)
self.add_defaults(CryptoTicker.defaults)
# set up USD as the currency if no locale is set
if self.currency == "":
self.currency = "USD"
# set up $ as the symbol if no locale is set
if self.symbol == "":
self.symbol = "$"
def _configure(self, qtile, bar):
try:
GenPollUrl._configure(self, qtile, bar)
self.query_url = self.QUERY_URL_DICT[self.api][0]
except KeyError:
apis = sorted(self.QUERY_URL_DICT.keys())
logger.error(
"%s is not a valid API. Use one of the list: %s.",
self.api,
apis,
)
raise ConfigError("Unknown provider passed as 'api' to CryptoTicker")
@property
def url(self):
return self.query_url.format(self.crypto, self.currency)
def parse(self, body):
variables = dict()
variables["crypto"] = self.crypto
variables["symbol"] = self.symbol
variables["amount"] = self.QUERY_URL_DICT[self.api][1](body)
return self.format.format(**variables)