ebay-ml-lister/ebay_api.py

86 lines
3.2 KiB
Python

import json
import requests
import pandas as pd
with open('cat_list.txt') as jf:
cat_list = json.load(jf)
big_data = pd.read_csv('big_data.csv')
class FindingApi:
'''Some docstring to get rid of linting errors'''
def __init__(self):
self.service = [
'findItemsAdvanced', 'findCompletedItems',
'findItemsByKeywords', 'findItemsIneBayStores', 'findItemsByCategory',
'findItemsByProduct'
]
self.pageNumber = list(range(1, 63))
# departments = ["3034","93427"] (womens and mens)
def get_ids_from_cats(self):
'''Stop bothering me for docstrings.'''
itemid_results_list = []
for category_id in cat_list:
for i in self.pageNumber:
params = {
"OPERATION-NAME":self.service[4],
"SECURITY-APPNAME":"scottbea-xlister-PRD-6796e0ff6-14862949",
"SERVICE-VERSION":"1.13.0",
"RESPONSE-DATA-FORMAT":"JSON",
"categoryId":category_id,
"paginationInput.entriesPerPage":"100",
"paginationInput.PageNumber":self.pageNumber[i]
}
response = requests.get("https://svcs.ebay.com/services/search/FindingService/v1",
params=params)
data = response.json()
for item in data['findItemsByCategoryResponse'][0]['searchResult'][0]['item']:
if item not in big_data.values:
itemid_results_list.append(item['itemId'])
item_id_results = [','.join(itemid_results_list[n:n+20]) for n in list(range(0,
len(itemid_results_list), 20))]
return item_id_results
class ShoppingApi(FindingApi):
'''
I don't need no stinkin' dockstring, foo
'''
def get_item_from_findItemsByCategory(self, item_id_results):
for twenty_id in item_id_results:
params = {
"callname":"GetMultipleItems",
"appid":"scottbea-xlister-PRD-6796e0ff6-14862949",
"version":"671",
"responseencoding":"JSON",
"ItemID":twenty_id,
"IncludeSelector":"ItemSpecifics",
}
response = requests.get("https://open.api.ebay.com/shopping?", params=params)
data = response.json()
names = []
values = []
nvl = data['Item'][0]['ItemSpecifics']['NameValueList']
for nvl_dict in nvl:
names.append(nvl_dict['Name'])
values.append(nvl_dict['Value'])
nvl_dict = dict(zip(names, values))
data.update(nvl_dict)
df = pd.json_normalize(data)
df.to_csv('big_data.csv')
# Limited to 5000 calls to shopping api per day, and getMultpileitems service maxes out at 20 items
# per call leaving you 100,000 items per day for you pandas dataframe initially. So you'll have
# to divide these up into the categories. This will leave you with about 6.25K results per cat.
# More than enough data for your dataset.
# Need to make sure dataframe gets important stuff outside of nvl. Also need to
# change init method in findingapi to have variable pages and possibly variable
# services.