def handle(self, *args, **kwargs):
url = base_url + urllib.parse.urlencode(url_parameters)
self.stdout.write("Fetching from:\n" + url)
fetched_data = requests.get(url).json()
price_timestamp = {}
for row in fetched_data:
curr = None
if Currency.objects.filter(name=row['id']).exists():
curr = Currency.objects.get(name=row['id'])
curr.symbol = row['symbol']
curr.current_price = row['current_price']
curr.market_cap = row['market_cap']
curr.total_volume = row['total_volume']
curr.high_24h = row['high_24h']
curr.low_24h = row['low_24h']
curr.price_change_24h = row['price_change_24h']
curr.price_change_percentage_24h = row[
'price_change_percentage_24h']
else: # creates new record
curr = Currency(name=row['id'],
symbol=row['symbol'],
current_price=row['current_price'],
market_cap=row['market_cap'],
total_volume=row['total_volume'],
high_24h=row['high_24h'],
low_24h=row['low_24h'],
price_change_24h=row['price_change_24h'],
price_change_percentage_24h=row[
'price_change_percentage_24h'])
curr.save()
price_timestamp[curr.name] = curr.current_price
prices = json.dumps(price_timestamp)
self.stdout.write(prices)
def set_default_currency():
try:
currency = Currency(code='USD', name='US Dollar', symbol='$')
except Exception as e:
logging.debug('Exception occured in creating default currency', str(e))
else:
currency.save()
def import_currencies():
currencies = get_currencies_from_xml()
db_currencies = Currency.objects.all()
for db_currency in db_currencies:
if db_currency.name not in currencies:
db_currency.delete()
for name, rate in currencies.items():
try:
db_currency = Currency.objects.get(name=name)
db_currency.name = name
db_currency.rate = rate
except Currency.DoesNotExist:
db_currency = Currency(name=name, rate=rate)
db_currency.save()
def get(self, request):
#TODO: remove hardcoding
data = urllib.request.urlopen("url...").read()
data = json.loads(data)
for currency in data:
try:
cur = Currency.objects.get(currency_id=currency['id'])
except Currency.DoesNotExist:
cur = Currency()
cur.populate_from_dict(currency)
cur.save()
history = CurrencyHistory()
history.populate_from_dict(currency)
history.currency = cur
history.save()
return HttpResponse(data, content_type="application/json")
client = ClientManager(**keys)
for exchange in exchanges:
print(exchange)
exchange = Exchange.objects.get(name=exchange)
currencies = client.get_currencies(exchange.name.lower())
for currency in currencies:
if not Currency.objects.filter(symbol=currency,
exchange=exchange).exists():
new_currency = Currency()
new_currency.exchange = exchange
new_currency.symbol = currency
if currency == "USDT" or currency == "USDC":
new_currency.name = "USD"
else:
new_currency.name = currency
new_currency.save()
for exchange in exchanges:
exchange = Exchange.objects.get(name=exchange)
currency_pairs = client.get_currency_pairs(exchange.name.lower())
for currency_pair in currency_pairs:
base = Currency.objects.get(symbol=currency_pair['base'],
exchange=exchange)
quote = Currency.objects.get(symbol=currency_pair['quote'],
exchange=exchange)
if not CurrencyPair.objects.filter(base=base, quote=quote).exists():
if exchange.name == "Poloniex":
print("adding poloniex pair")
new_currency = CurrencyPair()
new_currency.base = base
new_currency.quote = quote