如何使用grequests发出HTTP POST请求

Question

我尝试了以下方法：

import grequests

urls = ['http://localhost/test', 'http://localhost/test']

params = {'a':'b', 'c':'d'}
rs = (grequests.post(u, params) for u in urls)
grequests.map(rs)

但上面写着：

File "search.py", line 6, in <genexpr>
rs = (grequests.post(u, params) for u in urls)
TypeError: __init__() takes exactly 3 arguments (4 given)

我还需要将响应传递给回调进行处理。

Answer 1

函数的作用是：只接受一个位置参数，即发送post请求的URL。其余的参数作为关键字参数。

所以您需要将grequests.post（）调用为：

import grequests

urls = ['http://localhost/test', 'http://localhost/test']

params = {'a':'b', 'c':'d'}
rs = (grequests.post(u, data=params) for u in urls)
grequests.map(rs)