錯誤處理

Python API 入門

Chris Ramakers

Engineering Manager

錯誤狀態碼

4xx 用戶端錯誤

  • 表示用戶端端的問題
  • 常見原因：不當請求、驗證失敗等

解法：修正請求

5xx 伺服器錯誤

  • 源自伺服器端問題
  • 常見原因：伺服器過載、設定錯誤、內部錯誤

解法：由 API 管理員修復

Python API 入門

錯誤狀態碼：範例

4xx 用戶端錯誤

  • 401 Unauthorized - 此請求缺少目標資源所需的有效驗證資訊
  • 404 Not Found - 伺服器找不到所請求的資源
  • 429 Too Many Requests - 用戶端在短時間內送出太多請求

5xx 伺服器錯誤

  • 500 Internal Server Error - 伺服器發生非預期問題而無法回應
  • 502 Bad Gateway - API 伺服器無法成功連到完成回應所需的其他伺服器
  • 504 Gateway Timeout - 作為閘道的伺服器未及時收到上游伺服器回應
Python API 入門

處理錯誤

API 錯誤

import requests

url = 'http://api.music-catalog.com/albums'

r = requests.get(url)

if r.status_code >= 400:
    # Oops, something went wrong

else:
    # All fine, let's do something
    # with the response

連線錯誤

import requests

from requests.exceptions import ConnectionError

url = ''


try: 
    r = requests.get(url) 
    print(r.status_code)

except ConnectionError as conn_err: 
    print(f'Connection Error! {conn_err}.')
    print(error)
Python API 入門

raise_for_status()

import requests

# 1: Import the requests library exceptions
from requests.exceptions import ConnectionError, HTTPError


try:

    r = requests.get("http://api.music-catalog.com/albums") 


    # 2: Enable raising exceptions for returned error statuscodes
    r.raise_for_status()


    print(r.status_code)


# 3: Catch any connection errors
except ConnectionError as conn_err: 
    print(f'Connection Error! {conn_err}.')


# 4: Catch error responses from the API server
except HTTPError as http_err:
    print(f'HTTP error occurred: {http_err}')
Python API 入門

一起來練習吧！

Python API 入門

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