def get_api_graphs(exchange_name):
"""Generate response used by the graphs API
Args:
exchange_name (STRING): Exchange name to lowercase
Returns:
JSON: Response containing the exchange's close value of each day
"""
data = {}
# Get the Exchange object corresponding to the exchange name provided
exchange = Exchange.query.filter_by(name=exchange_name).first()
try:
# Get all datapoints (datapoint = close value of a day)
datapoints = Graph.query.filter_by(exchange_id=exchange.id).all()
# If there are datapoints and 'graph_type' parameter is in the request
graph = []
if datapoints and 'graph_type' in request.args:
# Linear graph
if request.args['graph_type'] == 'linear':
for dp in datapoints:
date = datetime.combine(dp.date, datetime.min.time())
datapoint = {
'date': timestamp2js(timestamp2unix(date)),
'price': dp.last
}
graph.append(datapoint)
# Candlesticks graph
elif request.args['graph_type'] == 'candlesticks':
for dp in datapoints:
date = datetime.combine(dp.date, datetime.min.time())
datapoint = {
'date': timestamp2js(timestamp2unix(date)),
'open': dp.opn or None,
'high': dp.high or None,
'low': dp.low or None,
'close': dp.close or None,
'volume': dp.volume or None
}
graph.append(datapoint)
data[exchange_name.replace(' ', '_')] = graph
return jsonify(data)
except:
return 'Error'
def get_api_ticker():
"""Generate response used by the ticker API
Returns:
DICT: Contains average values for ARS and USD exchanges
"""
exchanges_ars = ['digicoins', 'ripio', 'unisend', 'bitcoin_brothers']
exchanges_usd = ['la_nacion_blue', 'geeklab', 'infobae_blue']
now = datetime.now()
res = {
'_timestamp': now.strftime('%a %b %d %Y, %H:%M:%S'),
'_timestamp_unix': timestamp2unix(now),
'source': 'bitcharts.io',
}
try:
avg_ars = get_avg(exchanges_ars)
avg_usd = get_avg(exchanges_usd)
if avg_ars:
res['last_ars'] = float("{0:.2f}".format(avg_ars))
if avg_usd:
res['last_usd'] = float("{0:.2f}".format(avg_ars / avg_usd))
except Exception, e:
print e
res = 'An error has occurred. Try again later.'
