def priceDataPoint(request):
body = request.json
properties = ['product_id', 'price', 'url']
for a_property in properties:
if not body.get(a_property):
data = u'{} Missing in request'.format(a_property)
return Response(json=data, status=400)
if a_property is 'price':
try:
int(body.get('price'))
except:
error = {
'Price must be a integer'
}
return Response(json=error, status=400)
product_id = body.get('product_id')
price = int(body.get('price'))
url = body.get('url')
product = products.get(product_id)
if not product:
obj = dict()
obj['product_id'] = product_id
obj['price'] = price
obj['url'] = url
obj['alltimelow'] = price
products[product_id] = obj
notifications(product_id, ['ALWAYS'])
else:
events = list()
price_diff = product['price'] - price
ten_percent_of_product_price = float(product['price']) * float(0.1)
if price < product['alltimelow']:
events.append(settings.ALL_TIME_LOW)
if price_diff > ten_percent_of_product_price:
events.append(settings.MORE_THAN_10)
if price < product['price']:
events.append(settings.ALWAYS)
product['price'] = price
if events:
if settings.ALL_TIME_LOW in events:
product['alltimelow'] = price
notifications(product_id, events)
products[product_id] = product
response = {
'success': True
}
return Response(json=response)
def priceDataPoint(request):
body = request.json
properties = ["product_id", "price", "url"]
for a_property in properties:
if not body.get(a_property):
data = u"{} Missing in request".format(a_property)
return Response(json=data, status=400)
if a_property is "price":
try:
int(body.get("price"))
except:
error = {"Price must be a integer"}
return Response(json=error, status=400)
product_id = body.get("product_id")
price = int(body.get("price"))
url = body.get("url")
product = products.get(product_id)
if not product:
obj = dict()
obj["product_id"] = product_id
obj["price"] = price
obj["url"] = url
obj["alltimelow"] = price
products[product_id] = obj
notifications(product_id, ["ALWAYS"])
else:
events = list()
price_diff = product["price"] - price
ten_percent_of_product_price = float(product["price"]) * float(0.1)
if price < product["alltimelow"]:
events.append(settings.ALL_TIME_LOW)
if price_diff > ten_percent_of_product_price:
events.append(settings.MORE_THAN_10)
if price < product["price"]:
events.append(settings.ALWAYS)
product["price"] = price
if events:
if settings.ALL_TIME_LOW in events:
product["alltimelow"] = price
notifications(product_id, events)
products[product_id] = product
response = {"success": True}
return Response(json=response)
def notifications(product_id, typeList):
if not typeList:
return
key = settings.PRODUCT_SUBSCRIBER_CACHE_KEY + product_id
user_list = cache.get(key, list())
product = products.get(product_id)
if product:
for a_user in user_list:
user_key = a_user + '_' + product_id
subs = subscriptions.get(user_key)
common_events = [val for val in subs if val in typeList]
if common_events:
if settings.ALL_TIME_LOW in common_events:
data = {
'productId': product_id,
'url': product.get('url'),
'price': product.get('price'),
'reason': settings.ALL_TIME_LOW
}
# we can make a api call here
print a_user, data
elif settings.MORE_THAN_10 in common_events:
data = {
'productId': product_id,
'url': product.get('url'),
'price': product.get('price'),
'reason': settings.MORE_THAN_10
}
# we can make a api call here
print a_user, data
else:
data = {
'productId': product_id,
'url': product.get('url'),
'price': product.get('price'),
'reason': settings.ALWAYS
}
# we can make a api call here
print a_user, data
