Python-合并API分頁資料

我正在嘗試檢索每本書的所有頁數并計算總數。以下解決方案有效，但沒有使用 API 提供的分頁功能。

import requests
from requests.exceptions import HTTPError

total_number_of_pages = []

def get_all_books():
      try:
        response = requests.get("https://www.anapioficeandfire.com/api/books?page=1&pageSize=15")
        response.raise_for_status()
        json_response = response.json()
        
      except HTTPError as http_err:
        print(f'HTTP error occurred: {http_err}')
      except Exception as err:
        print(f'Other error occurred: {err}')
      return json_response


def sum_of_total_number_of_pages():
  total_number_of_pages = sum(pages["numberOfPages"] for pages in get_all_books())
  print(f"The total number of pages of all books is {total_number_of_pages}")

sum_of_total_number_of_pages()

我參考了這個答案并利用了 API 的分頁功能

import requests
from requests.exceptions import HTTPError

baseurl = "https://www.anapioficeandfire.com/api/"
endpoint = "books"

def get_number_of_pages_for_each_book():
      number_of_pages_for_each_book = []
      try:
        response = requests.get(f"{baseurl}{endpoint}")
        json_response = response.json()
        response.raise_for_status()
        
        for pages in json_response:
            number_of_pages_for_each_book.append(pages['numberOfPages'])

        while 'next' in response.links:
          response = requests.get(response.links['next']['url'])
          json_response = response.json()     

          for pages in json_response:
            number_of_pages_for_each_book.append(pages['numberOfPages'])
            
      except HTTPError as http_err:
        print(f'HTTP error occurred: {http_err}')
      except Exception as err:
        print(f'Other error occurred: {err}')
      return number_of_pages_for_each_book

def calculate_total_number_of_pages(number_of_pages):
    total_amount_of_pages = sum(number_of_pages)
    print(f"The total number of pages is {total_amount_of_pages}")
    
data = get_number_of_pages_for_each_book()
calculate_total_number_of_pages(data)

如果我json_response要從get_number_of_pages_for_each_book()方法回傳，它只回傳來自 while 回圈的資料，而不是初始 GET 請求。這就是我選擇創建一個串列并附加兩個請求中的資料的原因。

我想知道是否有更好的方法來構建代碼。

uj5u.com熱心網友回復：

代碼看起來不錯。

在 Python 中很while True受歡迎break

import requests
from requests.exceptions import HTTPError

baseurl = "https://www.anapioficeandfire.com/api/"
endpoint = "books"

def get_number_of_pages_for_each_book():
    number_of_pages_for_each_book = []
      
    url = f"{baseurl}{endpoint}"
    
    try:
        
        while True:
            response = requests.get(url)
            json_response = response.json()     

            for pages in json_response:
                number_of_pages_for_each_book.append(pages['numberOfPages'])
            
            if 'next' not in response.links:
                break
        
            url = response.links['next']['url']
            
    except HTTPError as http_err:
        print(f'HTTP error occurred: {http_err}')
    except Exception as err:
        print(f'Other error occurred: {err}')
          
    return number_of_pages_for_each_book

def calculate_total_number_of_pages(number_of_pages):
    total_amount_of_pages = sum(number_of_pages)
    print("The total number of pages is", total_amount_of_pages)
    
data = get_number_of_pages_for_each_book()
calculate_total_number_of_pages(data)

標籤：Python json 蟒蛇请求

上一篇：從Json串列中獲取值，然后驗證該值是否出現在串列中

下一篇：我如何讀取這個在php中以數字作為鍵的特定json？[復制]