如何加快API请求？

Question

我已经构建了以下小程序，用于使用Google的place
api获取电话号码，但是速度很慢。当我测试6个项目时，它花费的时间从4.86s到1.99s，我不确定为什么时间会发生重大变化。我是API的新手，所以我什至不知道可以加速/不能加速哪种事情，服务于API的网络服务器还剩下什么以及我自己可以改变什么。

import requests,json,time
searchTerms = input("input places separated by comma")

start_time = time.time() #timer
searchTerms = searchTerms.split(',')
for i in searchTerms:
    r1 = requests.get('https://maps.googleapis.com/maps/api/place/textsearch/json?query='+ i +'&key=MY_KEY')
    a = r1.json()
    pid = a['results'][0]['place_id']
    r2 = requests.get('https://maps.googleapis.com/maps/api/place/details/json?placeid='+pid+'&key=MY_KEY')
    b = r2.json()
    phone = b['result']['formatted_phone_number']
    name = b['result']['name']
    website = b['result']['website']
    print(phone+' '+name+' '+website)

print("--- %s seconds ---" % (time.time() - start_time))

Answer 1

您可能希望并行发送请求。Python提供了multiprocessing适合于此类任务的模块。

样例代码：

from multiprocessing import Pool

def get_data(i):
    r1 = requests.get('https://maps.googleapis.com/maps/api/place/textsearch/json?query='+ i +'&key=MY_KEY')
    a = r1.json()
    pid = a['results'][0]['place_id']
    r2 = requests.get('https://maps.googleapis.com/maps/api/place/details/json?placeid='+pid+'&key=MY_KEY')
    b = r2.json()
    phone = b['result']['formatted_phone_number']
    name = b['result']['name']
    website = b['result']['website']
    return ' '.join((phone, name, website))

if __name__ == '__main__':
    terms = input("input places separated by comma").split(",")
    with Pool(5) as p:
        print(p.map(get_data, terms))