我正在尝试向 Walmart API 发送 POST 请求以请求报告。但它返回给我“报告请求失败”。带有 json 的消息。我究竟做错了什么?我对 python 中的 API 调用没有太多经验。这是我的代码。
我有一个名为“Walmart”的类来与 Walmart Marketplace API 进行交互。它具有使用 API 进行身份验证、发送请求和处理响应的方法。
class Walmart(object):
def __init__(self, client_id, client_secret):
"""To get client_id and client_secret for your Walmart Marketplace
visit: https://developer.walmart.com/#/generateKey
"""
self.client_id = client_id
self.client_secret = client_secret
self.token = None
self.token_expires_in = None
self.base_url = "https://marketplace.walmartapis.com/v3"
session = requests.Session()
session.headers.update({
"WM_SVC.NAME": "Walmart Marketplace",
"WM_QOS.CORRELATION_ID": uuid.uuid4().hex,
"Content-Type": "application/x-www-form-urlencoded",
"Accept": "application/json",
})
session.auth = HTTPBasicAuth(self.client_id, self.client_secret)
self.session = session
# Get the token required for API requests
self.authenticate()
def authenticate(self):
data = self.send_request(
"POST", "{}/token".format(self.base_url),
body={
"grant_type": "client_credentials",
},
)
self.token = data["access_token"]
self.token_expires_in = data["expires_in"]
self.session.headers["WM_SEC.ACCESS_TOKEN"] = self.token
@property
def report(self):
return Report(connection=self)
def send_request(
self, method, url, params=None, body=None, json=None,
request_headers=None
):
# A unique ID which identifies each API call and used to track
# and debug issues; use a random generated GUID for this ID
headers = {
"WM_QOS.CORRELATION_ID": uuid.uuid4().hex,
"WM_SVC.NAME": "Walmart Marketplace",
"Content-Type": "application/x-www-form-urlencoded",
"Accept": "application/json",
}
if request_headers:
headers.update(request_headers)
response = None
if method == "GET":
response = self.session.get(url, params=params, headers=headers)
elif method == "PUT":
response = self.session.put(
url, params=params, headers=headers, data=body
)
elif method == "POST":
request_params = {
"params": params,
"headers": headers,
}
if json is not None:
request_params["json"] = json
else:
request_params["data"] = body
response = self.session.post(url, **request_params)
if response is not None:
try:
response.raise_for_status()
except requests.exceptions.HTTPError:
if response.status_code == 401:
raise WalmartAuthenticationError((
"Invalid client_id or client_secret. Please verify "
"your credentials from https://developer.walmart."
"com/#/generateKey"
))
elif response.status_code == 400:
data = response.json()
if "error" in data and data["error"][0]["code"] == \
"INVALID_TOKEN.GMP_GATEWAY_API":
# Refresh the token as the current token has expired
self.authenticate()
return self.send_request(
method, url, params, body, request_headers
)
raise
try:
return response.json()
except ValueError:
# In case of reports, there is no JSON response, so return the
# content instead which contains the actual report
return response.content
这里是身份验证和请求本身。我想我用 send_request 方法做错了,我应该用不同的方式做吗?
api_key = '<key>'
api_secret='<secret>'
wm = Walmart(api_key, api_secret)
wm.authenticate()
url = "https://marketplace.walmartapis.com/v3/reports/reportRequests"
headers = {
"WM_QOS.CORRELATION_ID": uuid.uuid4().hex,
"WM_SVC.NAME": "Walmart Marketplace",
"Content-Type": "application/x-www-form-urlencoded",
"Accept": "application/json",
}
data= {
"reportType": "ITEM_PERFORMANCE",
"reportVersion": "v1",
}
method="POST"
response_dict = wm.send_request(method, url, request_headers=headers, params=data)
if 'status_code' in response_dict and response_dict['status_code'] == 200:
response_json = response_dict.get('json')
request_id = response_json.get('requestId')
print(f'Report request submitted. Request ID: {request_id}')
else:
print('Report request failed.')
if 'json' in response_dict:
print(response_dict['json'])
else:
print(response_dict)
我得到的回复是以下表格。
报告请求失败。 {'requestId': '46a864e8-80e8-4019-86f0-d7a1575349a4', 'requestStatus': 'RECEIVED', 'requestSubmissionDate': '2023-02-15T18:55:03Z', 'reportType': 'ITEM_PERFORMANCE', '报告版本':'v1'}
感谢任何帮助
您可以尝试打印响应以查看他的内容,并且可能会有一些额外的信息可以帮助您修复代码。此外,您可以尝试使用此 https://pypi.org/project/ipdb/
逐行调试代码您得到的响应似乎是一个成功的响应,因为属性
requestStatus
是RECEIVED
,而不是ERROR
(根据您链接的API文档,这是一个可能的值)。
所以,问题可能出在您的回复检查上。
根据您的回复检查:
if 'status_code' in response_dict and response_dict['status_code'] == 200:
response_json = response_dict.get('json')
request_id = response_json.get('requestId')
print(f'Report request submitted. Request ID: {request_id}')
else:
print('Report request failed.')
if 'json' in response_dict:
print(response_dict['json'])
else:
print(response_dict)
'status_code' in response_dict
或response_dict['status_code'] == 200
为假,是什么使得else
块被执行。我建议你在 print(response_dict)
块之前到 if-else
,查看全部内容并查看这两个条件中哪一个是错误的并相应地处理它。
我认为问题在于您从
wm.send_request()
获得的对象不包含status_code
,因为您获得了响应的内容(当您return response.json()
时)而不是session.Response
来自requests
的对象lib(查看文档)。