修复 Qlik 连接失败且状态代码为 401

Question

我正在尝试生成详细的 python 脚本来从 Qlik 云条形图读取 Json 数据，将其作为 pdf 文件输出到我的笔记本电脑上，但我不断收到错误消息 401。即无法获取数据：

Failed to fetch data. Status code: 401 # output from the try loop in the code below

# Then full error traceback:
Traceback (most recent call last):
  File "c:\Users\Sunday\Documents\ClikModules\appv3ntpj.py", line 41, in <module>
    plt.bar(df['Customer'], df['Sum(Sales)'])
            ~~^^^^^^^^^^^^
  File "C:\Users\Sunday\AppData\Local\Programs\Python\Python312\Lib\site-packages\pandas\core\frame.py", line 3893, in __getitem__
    indexer = self.columns.get_loc(key)
              ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Sunday\AppData\Local\Programs\Python\Python312\Lib\site-packages\pandas\core\indexes\range.py", line 418, in get_loc
    raise KeyError(key)
KeyError: 'Customer'

下面的代码无法连接，因此 try 循环产生一个空数据帧，之后尝试绘制它，可以理解，会引发上面回溯中描述的错误。

import requests
import pandas as pd
import matplotlib.pyplot as plt
import base64

# Qlik Sense Configuration
qlik_base_url = "https://ioco2.eu.qlikcloud.com/"
qlik_app_id = "d0c200c8-b3bb-4157-81b7-4d18d44856a3"
qlik_table_object_id = "tNfNKkC"

# Authentication credentials (replace with your actual credentials)
qlik_username = "my username"
qlik_password = "password"

# Fetch data from Qlik Sense with authentication headers
qlik_data_url = f"{qlik_base_url}/api/v1/apps/{qlik_app_id}/tables/{qlik_table_object_id}/data"
headers = {
    "Authorization": "Basic " + base64.b64encode(f"{qlik_username}:{qlik_password}".encode()).decode()
}
response = requests.get(qlik_data_url, headers=headers)

# Check for successful response status
if response.status_code == 200:
    try:
        table_data = response.json()
    except requests.exceptions.JSONDecodeError as e:
        print(f"Error decoding JSON: {e}")
        table_data = None
else:
    print(f"Failed to fetch data. Status code: {response.status_code}")
    table_data = None

# Continue with the rest of the script...

# Convert Qlik table data to a Pandas DataFrame
df = pd.DataFrame(table_data) # So this will be empty

# Data processing or analysis (replace this with your specific requirements)
# For this example, let's just plot the data and save it as a PDF
plt.figure(figsize=(10, 6))
plt.bar(df['Customer'], df['Sum(Sales)']) # raises the error
plt.xlabel('Customer')
plt.ylabel('Sum(Sales)')
plt.title('Top Customers by Sales in Qlik Sense')

请帮我修复此状态代码 401。

Answer 1

根据 2022 年的 Qlik 社区帖子，这可能是 Qlik 已知错误：Qlik 数据网关连接重新加载失败，出现错误 401：“研发部门已将此问题识别为缺陷，正在修复”

联系他们的支持人员，希望他们现在可以提供帮助。