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To install Cryptomarket use pip
pip install cryptomarket==3.2.4
This sdk makes use of the api version 3 of cryptomarket
from cryptomarket.client import Client
from cryptomarket.args import Account, Side, OrderType
from cryptomarket.exceptions import CryptomarketSDKException
# instance a client
api_key='AB32B3201'
api_secret='21b12401'
client = Client(api_key, api_secret)
# get currencies
currencies = client.get_currencies()
# get order books
order_book = client.get_order_book_of_symbol('EOSETH')
# get your wallet balances
wallet_balance = client.get_wallet_balances()
# get your spot trading balances
trading_balance = client.get_spot_trading_balances()
# move balance from wallet account to trading account
transfer = client.transfer_between_wallet_and_exchange('ETH', '3.2', source=Account.WALLET, destination=Account.SPOT)
# get your active spot orders
orders = client.get_all_active_spot_orders('EOSETH')
# create a new spot order
order = client.create_spot_order('EOSETH', Side.BUY, '10', type=OrderType.MARKET)
there are three websocket clients, MarketDataClient
, the TradingClient
and the WalletClient
. The MarketDataClient
is public, while the others require authentication to be used.
Some subscription callbacks take a second argument, indicating the type of notification, either 'snapshsot' or 'update'.
There are no unsubscriptions methods for the MarketDataClient
. To stop recieving messages is recomended to close the MarketDataClient
.
# instance a client
client = MarketDataClient()
client.connect()
# subscribe to public trades
def trades_callback(trades_by_symbol: Dict[str, List[WSTrade]], notification_type):
for symbol in trades_by_symbol:
trade_list = trades_by_symbol[symbol]
for trade in trade_list:
print(trade)
client.subscribe_to_trades(
callback=trades_callback,
symbols=['ETHBTC'],
limit=5,
)
# subscribe to symbol tickers
def ticker_callback(tikers_of_symbol: Dict[str, WSTicker]):
for symbol in tikers_of_symbol:
ticker = tikers_of_symbol[symbol]
print(ticker)
client.subscribe_to_ticker(
callback=ticker_callback,
speed=TickerSpeed._3_SECONDS,
result_callback=lambda err, result: print(f'err:{err}, result:{result}')
)
# run for some time
time.sleep(10)
# close the client
client.close()
# instance a client with a 15 seconds window
client = TradingClient(api_key, api_secret, window=15_000)
client.connect()
# close the client
client.close()
# subscribe to order reports
def print_feed(feed, feed_type):
for report in feed:
print(report)
client.subscribe_to_reports(callback)
# unsubscribe from order reports
client.unsubscribe_to_reports()
client_order_id = str(int(time.time()*1000))
# create an order
client.create_spot_order(
client_order_id=client_order_id,
symbol='EOSETH',
side='sell',
quantity='0.01',
price='10000',
)
# candel an order
client.cancel_spot_order(client_order_id)
# instance a client
client = WalletClient(api_key, api_secret)
client.connect()
# close the client
client.close()
# subscribe to wallet transactions
def callback(transaction):
print(transaction)
client.subscribe_to_transactions(callback)
# unsubscribe from wallet transactions
err = client.unsubscribe_to_transactions()
# get wallet balances
def callback(err, balances):
if err:
print(err)
return
print(balances)
client.get_wallet_balances(callback)
from cryptomarket.client import Client
from cryptomarket.exceptions import CryptomarketSDKException
client = Client(api_key, secret_key)
# catch a wrong argument
try:
order = client.create_order(
symbol='EOSETH',
side='selllll', # wrong
quantity='3'
)
except CryptomarketSDKException as e:
print(f'exception catched {e}')
# catch a failed transaction
try:
order = client.create_order(
symbol='eosehtt', # non existant symbol
side='sell',
quantity='10',
)
except CryptomarketSDKException as e:
print(f'exception catched {e}')
client = WalletClient(api_key, api_secret)
try:
client.connect()
except Exception as e:
# here we are catching connection and authentication errors
print(e)
websocket methods take callbacks with two parameters, the first is the possible error, the second is the result of response from the server, for example:
def callback(err, balances):
if err:
print(err)
return
print(balances)
client.get_wallet_balances(callback)
websocket subscriptions also have this type of callback, but is called result_callback instead
All constants required for calls are in the cryptomarket.args
module.
All classes returned by the client are in the cryptomarket.dataclasses
module
FAQs
Cryptomarket API client library
We found that cryptomarket demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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