def has_deposit_fee_for_currency(exchange, currency):
"""
Checks if the given exchange supports the deposit of
the specified currency.
:param exchange: an exchange (as Exchange)
:param currency: a currency (as str)
:return: True/False
"""
check_isinstance_exchange(exchange)
check_isinstance_string(currency)
if has_funding_fees(exchange):
try:
depo = exchange.fees['funding']['deposit']
if currency in depo:
if depo[currency] == 0:
return False
else:
return True
else:
return False
except:
return False
else:
return False
def get_all_base_currencies_at_exchange(exchange):
"""Returns all currencies that are available as base currency."""
check_isinstance_exchange(exchange)
bases = []
for market in exchange.markets:
currency = exchange.markets[market]['base']
if not currency in bases:
bases.append(currency)
return bases
def has_deposit_fees_for_any_its_currencies(exchange):
check_isinstance_exchange(exchange)
if has_funding_fees(exchange):
try:
depo = exchange.fees['funding']['deposit']
for price in depo.values():
if price != 0:
return True
except (KeyError, TypeError, AttributeError) as e:
print(e)
return False
def get_all_quote_currencies_at_exchange(exchange):
"""Returns all currencies that are available as quote currency."""
check_isinstance_exchange(exchange)
quotes = []
for market in exchange.markets:
currency = exchange.markets[market]['quote']
if not currency in quotes:
quotes.append(currency)
return quotes
def is_currency_available_at_exchange(exchange, currency):
"""Checks if the currency is available at the exchange."""
check_isinstance_exchange(exchange)
check_isinstance_string(currency)
currency.upper()
for market in exchange.markets:
if (exchange.markets[market]['base'] == currency) \
or (exchange.markets[market]['quote'] == currency):
return True
return False
def are_bases_available_at_exchange(exchange, bases):
"""
Checks if the specified bases are available at the given exchange.
:param exchange: an exchange (as Exchange)
:param base: a list of base currencies (as str)
:return: Boolean
"""
check_isinstance_exchange(exchange)
check_isinstance_list(bases)
mask = []
for base in bases:
mask.append(is_base_available_at_exchange(exchange, base))
return mask
def are_quotes_available_at_exchange(exchange, quotes):
"""
Checks if the specified quotes are available at the given exchange.
:param exchange: an exchange (as Exchange)
:param quote: a list of quote currencies (as str)
:return: Boolean
"""
check_isinstance_exchange(exchange)
check_isinstance_list(quotes)
mask = []
for quote in quotes:
mask.append(is_quote_available_at_exchange(exchange, quote))
return mask
def is_base_available_at_exchange(exchange, base):
"""
Checks if the specified base is available at the given exchange.
:param exchange: an exchange (as Exchange)
:param base: a base currency (as str)
:return: Boolean
"""
check_isinstance_exchange(exchange)
check_isinstance_string(base)
bases = get_all_base_currencies_at_exchange(exchange)
if base in bases:
return True
else:
return False
def has_deposit_fees_for_any_given_currency(exchange, currencies):
"""
Checks if the given exchange supports the deposit of
the specified currencies.
:param exchange: an exchange (as Exchange)
:param currencies: a list of currencies (as str)
:return: True/False
"""
check_isinstance_exchange(exchange)
check_isinstance_list(currencies)
for currency in currencies:
if has_deposit_fee_for_currency(exchange, currency):
return True
return False
def are_currencies_available_at_exchange(exchange, currencies):
"""
Checks if the specified currencies are available at the
given exchange.
:param exchange: an exchange (as Exchange)
:param currencies: a list of currencies (as str)
:return: a list of Boolean values
"""
check_isinstance_exchange(exchange)
check_isinstance_list(currencies)
mask = []
for currency in currencies:
mask.append(is_currency_available_at_exchange(exchange, currency))
return mask
def is_quote_available_at_exchange(exchange, quote):
"""
Checks if the specified quote is available at the given exchange.
:param exchange: an exchange (as Exchange)
:param quote: a quote currency (as str)
:return: Boolean
"""
check_isinstance_exchange(exchange)
check_isinstance_string(quote)
quotes = get_all_quote_currencies_at_exchange(exchange)
if quote in quotes:
return True
else:
return False
def get_currencies_with_deposit_fee_at_exchange(exchange):
"""
Returns all currencies that have a fee associated with them on
the given exchange.
:param exchange: an exchange (as Exchange)
:return: a list of currencies
"""
check_isinstance_exchange(exchange)
deposits = []
try:
for currency, price in exchange.fees['funding']['deposit'].items():
if price != 0:
deposits.append(currency)
except (KeyError, TypeError, AttributeError) as e:
print(exchange.id, e)
return deposits
def has_funding_fees(exchange):
# TODO: This is not correct. Just because there is an entry doesn't mean it has fees. Could be 0...
"""Checks whether the exchange has funding fees. (via/in ccxt)"""
check_isinstance_exchange(exchange)
return bool(exchange.fees['funding'])
def get_all_currencies_at_exchange(exchange):
"""Returns all available currencies at the exchange."""
check_isinstance_exchange(exchange)
return exchange.currencies
