Question

我已经在这方面工作了几天而且我在这一点上有点失落，希望能有一点帮助来克服这个减速带。我是编程和python的新手，但我已经为Amazons Product api创建了一些请求，并认为SubmitFeed不同。我在MWS便笺簿中运行相同的设置，然后获得与我的代码创建的不同的签名。我不确定我做错了什么，我已经多次检查过有效载荷，没有任何东西可以脱颖而出。任何帮助都会很棒。

def get_data():
    global SECRET_KEY

    request_description = '&'.join(['%s=%s' % (k, urllib.parse.quote(payload[k], safe='-_.~')) for k in sorted(payload)])
    #print(request_description)

    sig_data = method + "\n" + domain.replace('https://', '').lower() + "\n" + URI + "\n" + request_description

    sig_data = bytes(sig_data, 'utf-8')
    SECRET_KEY1 = bytes(SECRET_KEY, 'utf-8')
    sig_data = hmac.new(SECRET_KEY1, sig_data, digestmod=hashlib.sha256)
    print(sig_data.hexdigest())
    calc_signature = urllib.parse.quote(base64.b64encode(sig_data.digest()), safe='-_.~')

    sig = calc_signature
    print(sig)
    url = '%s%s?%s&Signature=%s' % (domain, URI, request_description, sig)

    r = requests.post(url)

    file = open('C:\Python34\Python34\CompetitorsPrices.xml', 'w+')
    print(r.text, end="", file=file)
    file.close()



SECRET_KEY = '**'
AWS_ACCESS_KEY = '**'
SELLER_ID = '**'
MARKETPLACE_ID = '**'

Action = 'SubmitFeed'
SignatureMethod = 'HmacSHA256'
SignatureVersion = '2'
Timestamp = '2017-02-17T18:51:08Z'
Version = '2009-01-01'
URI = '/'
domain = 'https://mws.amazonservices.com'
method = 'POST'

payload = {'AWSAccessKeyId': AWS_ACCESS_KEY,
           'Action': Action,
           'Merchant': SELLER_ID,
           'SignatureVersion': SignatureVersion,
           'Timestamp': Timestamp,
           'Version': Version,
           'SignatureMethod': SignatureMethod,
           'MarketplaceIdList.Id.1': MARKETPLACE_ID,
           'FeedType': '_POST_FLAT_FILE_PRICEANDQUANTITYONLY_UPDATE_DATA_',
           'PurgeAndReplace': 'false'}

get_data()


print('Press Enter to Exit')

亚马逊MWS SubmitFeed：签名不正确

0 个答案: