homelog/asset/gtin_service.py

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from .models import GtinProduct
from django.db.models import ObjectDoesNotExist
import requests
import logging
LOGGER = logging.getLogger(__name__)
def ask_upcitemdb_service(gtin):
request = f'https://api.upcitemdb.com/prod/trial/lookup?upc={gtin}'
response = requests.get(request)
if response.status_code == 200:
productJson = response.json()
print(f"Got {productJson['total']} result records")
if productJson['total'] > 0:
product = GtinProduct.objects.create(gtin=gtin, api_request=request, api_response=productJson)
if 'title' in productJson['items'][0]:
product.name = productJson['items'][0]['title']
if 'brand' in productJson['items'][0]:
product.brand = productJson['items'][0]['brand']
LOGGER.debug(
f"Creating new product entry for gtin={gtin}:\nrequest={request}\nresponse={response.status_code}:{productJson}")
product.save()
return product
return None
def ask_remote_services(gtin):
product = ask_upcitemdb_service(gtin)
if product is not None:
return product
return None
def get_by_gtin(gtin):
try:
product = GtinProduct.objects.get(gtin=gtin)
except ObjectDoesNotExist:
# ask remote services
product = ask_remote_services(gtin)
return product