def addorder():
""" Checks balance and essential stuff, generates an order ID then adds order to a redis queue. """
instrument = request.form['currency_pair']
if not is_logged_in(session):
return home_page(instrument, danger="Please log in to perform that action.")
#They shouldn't be able to modify the trade pair, if it isnt valid either I messed up somewhere or they are trying to do something wrong
if not config.is_valid_instrument(instrument):
return home_page("ltc_btc", danger="Unknown Error, contact the administrator!")
base_currency = request.form['currency_pair'].split("_")[0]
quote_currency = request.form['currency_pair'].split("_")[1]
try:
rprice = Decimal(request.form['price'])
ramount = string_to_currency_unit(request.form['amount'], config.get_multiplier(base_currency))
print(ramount)
except Exception as e:
print(e)
return home_page(instrument, danger="Please enter numerical values for price and amount!")
if ramount < 1: #TODO: find a good amount for this
return home_page(instrument, danger="Transaction amount too low!")
if rprice <= 0:
return home_page(instrument, danger="Price must be greater than 0!")
getcontext().prec = 6
whole, dec = ExtendedContext.divmod(rprice*ramount/config.get_multiplier(base_currency), Decimal(1))
total = int(whole * config.get_multiplier(base_currency) + dec * config.get_multiplier(base_currency))
print("total: " + str(total))
uid = session['userid']
orderid = generate_password_hash(str(random.random()))
instrument = request.form['currency_pair']
bidtable = instrument + "/bid"
asktable = instrument + "/ask"
if request.form['ordertype'] == 'buy':
currency = quote_currency
if check_balance(currency,session['userid']) < total:
return home_page(instrument, danger="Balance too low to execute order!")
else:
adjustbalance(currency,session['userid'],-1 * total)
elif request.form['ordertype'] == 'sell':
currency = base_currency
if check_balance(currency, uid) < ramount:
return home_page(instrument, danger="Balance too low to execute order!")
else:
adjustbalance(currency, uid, -1 * ramount)
else:
return home_page(instrument, danger="Unknown Error, contact the administrator!") #invalid order type, they must have been messing around
redis.hmset(orderid, {"ordertype":request.form['ordertype'],"instrument":request.form['currency_pair'],"amount":ramount, "uid":uid,"price":rprice})
redis.rpush("order_queue",orderid)
redis.sadd(str(uid)+"/orders", orderid)
return home_page(instrument, dismissable="Order placed successfully!")
def addorder():
""" Checks balance and essential stuff, generates an order ID then adds order to a redis queue. """
instrument = request.form['currency_pair']
if not is_logged_in(session):
return home_page(instrument, danger="Please log in to perform that action.")
#They shouldn't be able to modify the trade pair, if it isnt valid either I messed up somewhere or they are trying to do something wrong
if not config.is_valid_instrument(instrument):
return home_page("ltc_btc", danger="Unknown Error, contact the administrator!")
base_currency = request.form['currency_pair'].split("_")[0]
quote_currency = request.form['currency_pair'].split("_")[1]
try:
rprice = float(request.form['price'])
ramount = int(float(request.form['amount'])* config.get_multiplier(base_currency))
except:
return home_page(instrument, danger="Please enter numerical values for price and amount!")
if ramount < 1: #TODO: find a good amount for this
return home_page(instrument, danger="Transaction amount too low!")
if rprice <= 0:
return home_page(instrument, danger="Price must be greater than 0!")
total = int(rprice * ramount)
uid = session['userid']
orderid = generate_password_hash(str(random.random()))
instrument = request.form['currency_pair']
bidtable = instrument + "/bid"
asktable = instrument + "/ask"
if request.form['ordertype'] == 'buy':
currency = quote_currency
if check_balance(currency,session['userid']) < total:
return home_page(instrument, danger="Balance too low to execute order!")
else:
adjustbalance(currency,session['userid'],-1 * total)
elif request.form['ordertype'] == 'sell':
currency = base_currency
if check_balance(currency, uid) < ramount:
return home_page(instrument, danger="Balance too low to execute order!")
else:
adjustbalance(currency, uid, -1 * ramount)
else:
return home_page(instrument, danger="Unknown Error, contact the administrator!") #invalid order type, they must have been messing around
redis.hmset(orderid, {"ordertype":request.form['ordertype'],"instrument":request.form['currency_pair'],"amount":ramount, "uid":uid,"price":rprice})
redis.rpush("order_queue",orderid)
redis.sadd(str(uid)+"/orders", orderid)
return home_page(instrument, dismissable="Order placed successfully!")
def getjsonorders(instrument,t):
""" Returns open orders from redis orderbook. """
orders = []
if config.is_valid_instrument(instrument):
if t == "bid":
bids = redis.zrange(instrument+"/bid",0,-1,withscores=True)
for bid in bids:
orders.append({"price":bid[1], "amount":redis.hget(bid[0],"amount")})
else:
asks = redis.zrange(instrument+"/ask",0,-1,withscores=True)
for ask in asks:
orders.append({"price":ask[1], "amount":redis.hget(ask[0],"amount")})
#So prices are not quoted in satoshis
#TODO: move this client side?
for order in orders:
order['amount'] = float(order['amount'])/config.get_multiplier(instrument.split("_")[0])
else:
orders.append("Invalid trade pair!")
jo = json.dumps(orders)
return Response(jo, mimetype='application/json')
def getjsonorders(instrument,t):
""" Returns open orders from redis orderbook. """
orders = []
if config.is_valid_instrument(instrument):
if t == "bid":
bids = redis.zrange(instrument+"/bid",0,-1,withscores=True)
for bid in bids:
orders.append({"price":bid[1], "amount":redis.hget(bid[0],"amount")})
else:
asks = redis.zrange(instrument+"/ask",0,-1,withscores=True)
for ask in asks:
orders.append({"price":ask[1], "amount":redis.hget(ask[0],"amount")})
#So prices are not quoted in satoshis
#TODO: move this client side?
for order in orders:
order['amount'] = float(order['amount'])/config.get_multiplier(instrument.split("_")[0])
else:
orders.append("Invalid trade pair!")
jo = json.dumps(orders)
return Response(jo, mimetype='application/json')
def trade_page(instrument):
if not config.is_valid_instrument(instrument):
return home_page("ltc_btc", danger="Invalid trade pair!")
return home_page(instrument)
def trade_page(instrument):
if not config.is_valid_instrument(instrument):
return home_page("ltc_btc", danger="Invalid trade pair!")
return home_page(instrument)