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Initial Commit
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David Todd
commit
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ebay.py
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270
ebay.py
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# Imports first
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# This is the sdk found at https://github.com/timotheus/ebaysdk-python
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from ebaysdk.trading import Connection as Trading
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import datetime
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# Application Settings
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app_id = ''
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dev_id = ''
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crt_id = ''
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domain = 'api.sandbox.ebay.com'
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# User Identification
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usr_token = ''
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# Don't get items that are ending today
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today = datetime.datetime.today()
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today = today.strftime("%Y-%m-%dT%H:%M:%S.%fZ")
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# Here are the error codes that we currently have
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# None - No events have happened yet
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# 0 - Everything is fine
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# 1 - The API variable is either unset, or is not a valid connection to the ebay API
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# 2 - The required list is either unset, or is not the required type - Usually dict, but can be a list of dicts
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# 3 - EndTimeFrom or EndTimeTo were not set in the list - getSeller only
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# 4 - Relates to 3, but specifically refers to a dateRange not being available for glue
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# 5 - No data (useful) returned by API - A field of data we need is None
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# minor logic checking - We don't want to get trackbacks for silly reasons
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# getSeller gets a list of our itemIDs
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def getSeller(api, list):
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# api is the connection to the Trading API
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# list is a dict containing required information for ebay to search for (http://developer.ebay.com/DevZone/XML/docs/Reference/ebay/GetSellerEvents.html)
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# - The datapoints that MUST be defined are EndTimeFrom and EndTimeTo - These select the dateRange that items end on ebay
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# Set our error conditions
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res = { 'error': { 'code': None, 'msg': None, 'fnc': 'getSeller' }, 'apiResponse': {} }
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if(api == None):
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res['error']['code'] = '1'
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res['error']['msg'] = 'api is not set'
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return res
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if(list == None) | (isinstance(list, dict) != True):
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res['error']['code'] = '2'
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res['error']['msg'] = 'list doesn\'t exist or is of wrong type, must be dict'
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return res
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if('EndTimeFrom' not in list) | ('EndTimeTo' not in list):
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res['error']['code'] = '3'
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res['error']['msg'] = 'either "EndTimeFrom" or "EndTimeTo" is not set in list'
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return res
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# run the actual command
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apiResponse = api.execute('GetSellerEvents', list)
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# Store the response in a dict and unset response
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res['apiResponse'] = apiResponse.dict()
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apiResponse = None
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# Verify that the search returned information
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if res['apiResponse']['ItemArray'] != None:
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# Check if the itemArray is setup the way we want it (list containing one or more dicts)
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try:
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for k in res['apiResponse']['ItemArray']['Item']:
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itemid = k['ItemID']
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except TypeError:
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# The itemArray is not, force it to be then
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res['apiResponse'] = [ res['apiResponse']['ItemArray']['Item'] ]
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else:
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# No need to encase the list in another list
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res['apiResponse'] = res['apiResponse']['ItemArray']['Item']
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# Yay no errors
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if res['error']['code'] == None:
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res['error']['code'] = '0'
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else:
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# drop the response as it contains no useful information anymore
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res['apiResponse'] = {}
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res['error']['code'] = '5'
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res['error']['msg'] = 'no items found - maybe the dateRange is too narrow?'
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return res
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# getItems uses the list of ItemIDs provided by getSeller to get specific information about each ItemID
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def getItems(api, itemList, itemArgs={}):
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# api is the connection to the Trading API
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# itemList is a dict containing ItemIDs and other info as a result of getSeller
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# itemArgs is an optional dict that contains extra details to refine the search returned by ebay (http://developer.ebay.com/DevZone/XML/docs/Reference/ebay/GetItem.html)
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# - The two required datapoints in itemArgs are IncludeItemSpecifics and ItemID, both are defined below in the loop
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# Set our error conditions
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res = { 'error': { 'code': None, 'msg': None, 'fnc': 'getItems' }, 'apiResponse': {} }
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if(api == None):
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res['error']['code'] = '1'
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res['error']['msg'] = 'api is not set'
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return res
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if(itemList == None) | (type(itemList) != type([])):
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res['error']['code'] = '2'
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res['error']['msg'] = 'itemList doesn\'t exist or is of wrong type, must be list containing one or more dicts'
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return res
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if(itemArgs == None) | (isinstance(itemArgs, dict) != True):
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res['error']['code'] = '2'
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res['error']['msg'] = 'itemArgs doesn\'t exist or is of wrong type, must be dict'
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return res
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# For each ItemID
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for k in itemList:
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# Extra arguments that should be applied anyways
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itemArgs['IncludeItemSpecifics'] = 'True'
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# Search for specific ItemID
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itemArgs['ItemID'] = k['ItemID']
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# If the Item is not active, we don't want it - Prevents sending extra API resquests for data we don't want
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if(k['SellingStatus']['ListingStatus'] != 'Active'):
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continue
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response = api.execute('GetItem', itemArgs)
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res['apiResponse'][k['ItemID']] = response.dict()
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#res['apiResponse'] = { k['ItemID']: response.dict() }
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response = None
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# We want the error code to only be changed on the first successful iteration
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if res['error']['code'] == None:
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res['error']['code'] = '0'
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# After the loop is complete, return the whole res
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return res
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# storeItems uses the dict of Items provided by getItems and stores the information we want
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def storeItems(itemList):
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# itemList is the apiRequest value presented as a result of getItems
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# - This contains every item that matches getItems criteria with the ItemID as the key of further dicts
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# Set our error conditions
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res = { 'error': { 'code': None, 'msg': None, 'fnc': 'storeItems' }, 'apiResponse': {} }
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if(itemList == None) | (isinstance(itemList, dict) != True):
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res['error']['code'] = '2'
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res['error']['msg'] = 'itemList doesn\'t exist or is of wrong type, must be dict'
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return res
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# Now that we've stored all the data in a really big dictionary, lets pull only the information we want out of it
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for k in itemList:
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res['apiResponse'][k] = { 'price': {}, 'condition': {}, 'quantity': {} }
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condition = '0'
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# Switch statement - Sets condition.msg based on conditionID - based on table from http://developer.ebay.com/devzone/finding/callref/Enums/conditionIdList.html
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def conCheck(condition):
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# Cast the condition to a string
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condition = str(condition)
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switch = {
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'1000': 'New',
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'1500': 'New Other',
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'1750': 'New with defects',
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'2000': 'Manufacturer Refurbished',
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'2500': 'Seller Refurbished',
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'3000': 'Used',
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'4000': 'Used/Very Good Condition',
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'5000': 'Used/Good Condition',
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'6000': 'Used/Acceptable Condition',
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'7000': 'For Parts/Not Working'
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}
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# Return the approiate text or N/A if no ID matches
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return switch.get(condition, 'N/A')
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res['apiResponse'][k]['title'] = itemList[k]['Item']['Title']
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if 'ConditionID' in itemList[k]['Item']:
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# Override the condition defined at the start of the loop
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condition = itemList[k]['Item']['ConditionID']
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if 'SellingStatus' in itemList[k]['Item']:
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# Store current price + currency the price is in
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res['apiResponse'][k]['price']['cur'] = itemList[k]['Item']['SellingStatus']['CurrentPrice']['_currencyID']
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res['apiResponse'][k]['price']['val'] = itemList[k]['Item']['SellingStatus']['CurrentPrice']['value']
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# Store the quantity - Subtract sold from total to get current value
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res['apiResponse'][k]['quantity']['sold'] = itemList[k]['Item']['SellingStatus']['QuantitySold']
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res['apiResponse'][k]['quantity']['total'] = itemList[k]['Item']['Quantity']
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else:
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res['apiRequest'][k]['price']['cur'] = None
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res['apiRequest'][k]['price']['val'] = None
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res['apiRequest'][k]['quantity']['sold'] = None
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res['apiRequest'][k]['quantity']['total'] = None
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# Get the item specifics - Special fields pertaining to the item, such as manufacturer and part number
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if 'ItemSpecifics' in itemList[k]['Item']:
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# Try to for loop our data, if that fails, assume it's a dict with only one ItemSpecific
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try:
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for i in itemList[k]['Item']['ItemSpecifics']['NameValueList']:
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name = i['Name']
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if(name == 'Brand'):
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res['apiResponse'][k]['mfg'] = i['Value']
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if(name == 'MPN'):
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res['apiResponse'][k]['mpn'] = i['Value']
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except TypeError:
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if itemList[k]['Item']['ItemSpecifics']['NameValueList']['Name'] == 'Brand':
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res['apiResponse'][k]['mfg'] = itemList[k]['Item']['ItemSpecifics']['NameValueList']['Value']
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res['apiResponse'][k]['mpn'] = None
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elif itemList[k]['Item']['ItemSpecifics']['NameValueList']['Name'] == 'MPN':
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res['apiResponse'][k]['mpn'] = itemList[k]['Item']['ItemSpecifics']['NameValueList']['Value']
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res['apiResponse'][k]['mfg'] = None
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else:
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res['apiResponse'][k]['mpn'] = None
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res['apiResponse'][k]['mfg'] = None
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# Store the condition
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res['apiResponse'][k]['condition']['code'] = condition
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res['apiResponse'][k]['condition']['msg'] = conCheck(condition)
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# We want the error code to only be changed on the first successful iteration
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if res['error']['code'] == None:
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res['error']['code'] = '0'
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# After the loop is complete, return the whole res
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return res
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# Glue logic to run all the functions above properly
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def glue(api, sellerList, dateRange={}):
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# api is the connection to the api, this is passed to the functions as called
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# sellerList is the options that you can present ebay for searching (http://developer.ebay.com/DevZone/XML/docs/Reference/ebay/GetSellerEvents.html)
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# dateRange overrides EndTimeFrom and EndTimeTo from sellerList for ease of passing these required data with nothing else
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# Set our error conditions
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res = { 'error': { 'code': '0', 'msg': None, 'fnc': 'glue' }, 'apiResponse': {} }
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if(api == None):
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res['error']['code'] = '1'
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res['error']['msg'] = 'api is not set'
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return res
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if(sellerList == None) | (isinstance(sellerList, dict) != True):
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res['error']['code'] = '2'
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res['error']['msg'] = 'itemList doesn\'t exist or is of wrong type, must be dict'
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return res
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if(dateRange == None) | (isinstance(dateRange, dict) != True):
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res['error']['code'] = '2'
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res['error']['msg'] = 'dateRange doesn\'t exist or is of wrong type, must be dict'
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return res
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# Override the dates in sellerList with values from dateRange, if provided
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if('from' in dateRange):
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sellerList['EndTimeFrom'] = dateRange['from']
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if('to' in dateRange):
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sellerList['EndTimeTo'] = dateRange['to']
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seller = getSeller(api, sellerList)
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if seller['error']['code'] == '0':
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sellerList = seller['apiResponse']
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seller = None # Unset any data we no-longer need - Saves on memory
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items = getItems(api, sellerList)
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if items['error']['code'] == '0':
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sellerList = items['apiResponse']
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items = storeItems(sellerList)
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storedItems = items['apiResponse']
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items = None
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return storedItems
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else:
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res['error'] = items['error']
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return res
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else:
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res['error'] = seller['error']
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return res
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try:
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api = Trading(domain=domain, appid=app_id, devid=dev_id, certid=crt_id, token=usr_token, config_file=None, debug=False)
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# Example usage, returns a dict containing all items of interst (based on the functions above)
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print(glue(api=api, sellerList={}, dateRange={'from':today, 'to': '2016-05-26T23:59:59.999Z'}))
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except ConnectionError as e:
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print(e)
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