def retrieve(self,coinname):
coinname=coinname.upper()
coinID,coinSymbol,coinPrice,coin24Perc,coinMarketCap=None,None,None,None,None
#coinSymbol=None
url = 'https://api.coinmarketcap.com/v1/ticker/'
json_format=utils.get_url_data(url).json()
for coin in json_format:
if (coin['symbol']==coinname) or (coin['id']==coinname) or (coin['name']==coinname):
coinID = coin['id']
coinSymbol = coin['symbol']
coinPrice = coin['price_usd']
coin24Perc = coin['percent_change_24h']
coinMarketCap = coin['market_cap_usd']
Controller.passCoin(self,coinID,coinSymbol,coinPrice,coin24Perc,coinMarketCap)
def download_coin_data_by_id(coin_id, start_date, end_date):
"""
Download HTML price history for the specified cryptocurrency and time range from CoinMarketCap.
:param coin_id: coin_id of a cryptocurrency e.g. btc
:param start_date: date since when to scrape data (in the format of dd-mm-yyyy)
:param end_date: date to which scrape the data (in the format of dd-mm-yyyy)
:return: returns html of the webpage having historical data of cryptocurrency for certain duration
"""
if start_date is None:
# default start date on coinmarketcap.com
start_date = '28-4-2013'
if end_date is None:
yesterday = datetime.date.today() - datetime.timedelta(1)
end_date = yesterday.strftime('%d-%m-%Y')
# coin_id = get_coin_id(coin_code)
# Format the dates as required for the url.
start_date = datetime.datetime.strptime(start_date,
'%d-%m-%Y').strftime('%Y%m%d')
end_date = datetime.datetime.strptime(end_date,
'%d-%m-%Y').strftime('%Y%m%d')
url = 'https://coinmarketcap.com/currencies/{0}/historical-data/?start={1}&end={2}'.format(
coin_id, start_date, end_date)
try:
html = get_url_data(url).text
return html
except Exception as e:
print("Error fetching price data for {} for interval '{}' and '{}'",
coin_id, start_date, end_date)
if hasattr(e, 'message'):
print('Error message (download_data) :', e.message)
else:
print('Error message (download_data) :', e)
def get_coin_ids(coin_code):
"""
This method fetches the name(id) of currency from the given code
:param coin_code: coin code of a cryptocurrency e.g. btc
:return: coin-id for the a cryptocurrency on the coinmarketcap.com
"""
ids = []
try:
url = 'https://api.coinmarketcap.com/v1/ticker/?limit=0'
json_resp = get_url_data(url).json()
coin_code = coin_code.upper()
for coin in json_resp:
if coin['symbol'] == coin_code:
ids.append(coin['id'])
if len(ids) == 0:
raise InvalidCoinCode('This coin code is unavailable on "coinmarketcap.com"')
except Exception as e:
raise e
return ids