import urllib

import urllib2

import json

import time

import hmac

import hashlib

class Api:

""" API wrapper for the Cryptsy API. """

def __init__(self, key, secret):

self.API_KEY = key

self.SECRET = secret

def _public_api_query(self, method, marketid=None):

""" Call to the public api and return the loaded json. """

request_url = 'http://pubapi.cryptsy.com/api.php?method=%s' % method

if marketid is not None:

request_url += '&marketid=%d' % marketid

rv = urllib2.urlopen(urllib2.Request(request_url))

return json.loads(rv.read())

def _api_query(self, method, request_data=None):

""" Call to the "private" api and return the loaded json. """

request_data['method'] = method

request_data['nonce'] = int(round(time.time() * 1000))

post_data = urllib.urlencode(request_data)

signed_data = hmac.new(self.SECRET, post_data, hashlib.sha512)\

.hexdigest()

headers = {

'Sign': signed_data,

'Key': self.API_KEY

}

rv = urllib2.urlopen(urllib2.Request('https://www.cryptsy.com/api',

post_data,

headers))

return json.loads(rv.read())

def market_data(self, v2=False):

""" Get market data for all markets.

Defaults to the old version of getmarketdata. Set v2 to True to use

getmarketdatav2.

"""

if v2 is True:

return self._public_api_query("marketdatav2")

return self._public_api_query("marketdata")

def single_market_data(self, marketid=None):

""" Get general market data for the given market.

:param marketid: Market ID you are querying for.

"""

return self._public_api_query("singlemarketdata", marketid=marketid)

def order_book_data(self, marketid=None):

""" Get orderbook data for all markets, or for a single one.

:param marketid: If provided, API will only return orderbook data for

this specific market.

"""

if marketid is None:

return self._public_api_query("orderdata")

return self._public_api_query("singleorderdata", marketid=marketid)

def info(self):

""" Get some information about the server and your account.

Resultset contains:

balances_available Array of currencies and the balances availalbe for each

balances_hold Array of currencies and the amounts currently on hold for open orders

servertimestamp Current server timestamp

servertimezone Current timezone for the server

serverdatetime Current date/time on the server

openordercount Count of open orders on your account

"""

return self._api_query('getinfo')

def markets(self):

""" Get a list of all active markets.

Resultset contains:

marketid Integer value representing a market

label Name for this market, for example: AMC/BTC

primary_currency_code Primary currency code, for example: AMC

primary_currency_name Primary currency name, for example: AmericanCoin

secondary_currency_code Secondary currency code, for example: BTC

secondary_currency_name Secondary currency name, for example: BitCoin

current_volume 24 hour trading volume in this market

last_trade Last trade price for this market

high_trade 24 hour highest trade price in this market

low_trade 24 hour lowest trade price in this market

"""

return self._api_query('getmarkets')

def my_transactions(self):

""" Get all your deposits and withdrawals from your account.

Resultset contains:

currency Name of currency account

timestamp The timestamp the activity posted

datetime The datetime the activity posted

timezone Server timezone

type Type of activity. (Deposit / Withdrawal)

address Address to which the deposit posted or Withdrawal was sent

amount Amount of transaction

"""

return self._api_query('mytransactions')

def market_trades(self, marketid):

""" Get the last 1000 trades for this market, ordered descending by

date.

Resultset contains:

datetime Server datetime trade occurred

tradeprice The price the trade occurred at

quantity Quantity traded

total Total value of trade (tradeprice * quantity)

:param marketid: Market for which you are querying.

"""

return self._api_query('markettrades', request_data={'marketid': marketid})

def market_orders(self, marketid):

""" Return currently open sell and buy orders.

Resultset contains two arrays, one for sell orders, one for buy orders,

containing the following fields:

sellprice If a sell order, price which order is selling at

buyprice If a buy order, price the order is buying at

quantity Quantity on order

total Total value of order (price * quantity)

:param marketid: Market ID for which you are querying.

"""

return self._api_query('marketorders',

request_data={'marketid': marketid})

def my_trades(self, marketid=None, limit=200):

""" Get all your trades for this market, ordered descending by date.

Resultset contains:

tradeid An integer identifier for this trade

tradetype Type of trade (Buy/Sell)

datetime Server datetime trade occurred

tradeprice The price the trade occurred at

quantity Quantity traded

total Total value of trade (tradeprice * quantity)

:param marketid: Marketid for which you are querying.

:param limit: Maximum number of results, defaults to 200.

"""

if marketid is None:

return self._api_query('allmytrades')

return self._api_query('mytrades', request_data={'marketid': marketid,

'limit': limit})

def my_orders(self, marketid=None):

""" Get all your orders, or your orders for a specific market.

Resultset contains:

orderid Order ID for this order

created Datetime the order was created

ordertype Type of order (Buy/Sell)

price The price per unit for this order

quantity Quantity for this order

total Total value of order (price * quantity)

:param marketid: If provided, orders will be filtered by this marketid.

"""

if marketid is None:

return self.api_query('allmyorders')

return self._api_query('myorders', request_data={'marketid': marketid})

def depth(self, marketid):

""" Get an array of buy and sell orders on the given market

representing the market depth.

:param marketid: A market ID.

"""

return self._api_query('depth', request_data={'marketid': marketid})

def _create_order(self, marketid, ordertype, quantity, price):

""" Creates an order for buying or selling coins.

It is preferable to buy and sell coins using the Api.buy and Api.sell

methods.

:param marketid: Market to buy from.

:param ordertype: Either Buy or Sell.

:param quantity: Number of coins to buy.

:param price: At this price.

:returns: A dict containing the orderid of the created order.

"""

return self._api_query('createorder',

request_data={'marketid': marketid,

'ordertype': ordertype,

'quantity': quantity,

'price': price})

def buy(self, marketid, quantity, price):

""" Buy a specified number of coins on the given market. """

return self._create_order(marketid, 'Buy', quantity, price)

def sell(self, marketid, quantity, price):

""" Sell a specified number of coins on the given market. """

return self._create_order(marketid, 'Sell', quantity, price)

def cancel_order(self, orderid):

""" Cancel a specific order.

:param orderid: The ID of the order you want to cancel.

:returns: A succescode if succesfull.

"""

return self._api_query('cancelorder', request_data={'orderid': orderid})

def cancel_all_market_orders(self, marketid):

""" Cancel all currently pending orders for a specific market.

:param marketid: Market ID for wich you would like to cancel orders.

"""

return self._api_query('cancelmarketorders',

request_data={'marketid': marketid})

def cancel_all_orders(self):

""" Cancel all currently pending orders. """

return self._api_query('cancelallorders')

def calculate_fees(self, ordertype, quantity, price):

""" Calculate fees that would be charged for the provided inputs.

:param ordertype: Order type you are calculating for (Buy/Sell)

:param quantity: Amount of units you are buying/selling

:param price: Price per unit you are buying/selling at

:returns: A dict containing the fee and the net total with fees.

"""

return self._api_query('calculatefees',

request_data={'ordertype': ordertype,

'quantity': quantity,

'price': price})

def generate_new_address(self, currencyid=None, currencycode=None):

""" Generate a new address for a currency. Expects either a currencyid

OR a currencycode (not both).

:param currencyid: ID of a currency on Cryptsy.

:param currencycode: Code of a currency on Cryptsy.

:throws ValueError: Fails if neither of the parameters are given.

:returns: A dict containing the newly generated address.

"""

if currencyid is not None:

req = {'currencyid': currencyid}

elif currencycode is not None:

req = {'currencycode': currencycode}

else:

raise ValueError('You should specify either a currencyid or a'

'currencycode')

return self._api_query('generatenewaddress', request_data=req)

def my_transfers(self):

""" Array of all transfers into/out of your account sorted by requested

datetime descending.

Resultset contains:

currency Currency being transfered

request_timestamp Datetime the transfer was requested/initiated

processed Indicator if transfer has been processed (1) or not (0)

processed_timestamp Datetime of processed transfer

from Username sending transfer

to Username receiving transfer

quantity Quantity being transfered

direction Indicates if transfer is incoming or outgoing (in/out)

"""

self._api_query('mytransfers');

def wallet_status(self):

""" Array of Wallet Statuses

Resultset contains:

currencyid Integer value representing a currency

name Name for this currency, for example: Bitcoin

code Currency code, for example: BTC

blockcount Blockcount of currency hot wallet as of lastupdate time

difficulty Difficulty of currency hot wallet as of lastupdate time

version Version of currency hotwallet as of lastupdate time

peercount Connected peers of currency hot wallet as of lastupdate time

hashrate Network hashrate of currency hot wallet as of lastupdate time

gitrepo Git Repo URL for this currency

withdrawalfee Fee charged for withdrawals of this currency

lastupdate Datetime (EST) the hot wallet information was last updated

"""

self._api_query('getwalletstatus')

def make_withdrawal(self, address, amount):

""" Make a withdrawal to a trusted withdrawal address.

:param address: Pre-approved address for which you are withdrawing to.

:param amount: Amount you are withdrawing, maximum of 8 decimals.

"""

self._api_query('makewithdrawal',

request_data={

'address': address,

'amount': amount

})