如何在使用python3发布表单时设置请求cookie？

我想用python代码自动获取api密钥。 下面是我手工获取api密钥的步骤

手工：

打开

https://www.alphavantage.co

在firefox中

单击

立即获取免费API密钥

输入

名字

姓氏

电子邮件

单击

获取免费api密钥

2.按代码

import urllib.request, urllib.parse, urllib.error
import http.cookiejar

LOGIN_URL = 'https://www.alphavantage.co/support/#api-key'
params = {
          "first": "xx",
          "last": "yy",
          "occupation": "investor",
          "email":"zz@qq.com"
}

headers = {
"Accept-Language":"en-US,en;q=0.8",
"Connection":"keep-alive",
"Content-Length":"77",
"Content-Type":"application/x-www-form-urlencoded; charset=UTF-8",
"Cookie":"csrftoken=qTbVt3HN2VYiDbJgX1n9DdyaDUYKpMyJ1UvTE3xCplYZcAYk9OQaXJ1F6ACadcjA; _ga=GA1.2.1054357644.1509295038; _gid=GA1.2.1986003924.1509295038; _gat=1",
"Host":"www.alphavantage.co",
"Origin:https":"//www.alphavantage.co",
"Referer:https":"//www.alphavantage.co/support/",
"User-Agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.91 Safari/537.36",
"X-CSRFToken":"l7RRVpYomq6fIvjAnuYJiR0xquqoeD5gXrlowpQqejCCKX65OUrUcZzw2ljf9SPB",
"X-Requested-With":"XMLHttpRequest"
}

postdata = urllib.parse.urlencode(params).encode()
user_agent = r'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36'

cookie = http.cookiejar.MozillaCookieJar()
handler = urllib.request.HTTPCookieProcessor(cookie)
opener = urllib.request.build_opener(handler)
request = urllib.request.Request(LOGIN_URL, postdata, headers)
response = opener.open(request)

错误信息：

raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 499: Client Disconnected

标头中的cookie是在步骤1.2中创建的请求cookie

如何使用python代码而不是手工获取api密钥

---

您的代码中有两个错误

首先。POST请求应发送到

/create\u POST/

端点

第二。字段名称不同：

params = {
    "first_text": "xx",
    "last_text": "yy",
    "occupation_text": "investor",
    "email_text":"zz@qq.com"
}

您只需要三个头：

Referer

，

Cookie

，

X-CSRFToken

完整代码：

import requests


headers = {
    "Referer": "https://www.alphavantage.co/support/",
    "Cookie": "csrftoken=YOURTOKEN",
    "X-CSRFToken":"YOURTOKEN"
}
params = {
    "first_text": "a",
    "last_text": "b",
    "occupation_text": "Student",
    "email_text": "aa@bb.cc"
}
response = requests.post("https://www.alphavantage.co/create_post/",
                         data=params, headers=headers)
print(response.text)

---

嗨，据我所知，一旦你从这个网站获得了一个API密钥，你可以从那时起继续使用这个API密钥。然后使用该API密钥对服务器进行查询。

import urllib.request, urllib.parse, urllib.error
import http.cookiejar

LOGIN_URL1 = 'https://www.alphavantage.co/support/#api-key'

cookie = http.cookiejar.MozillaCookieJar()
handler = urllib.request.HTTPCookieProcessor(cookie)
opener = urllib.request.build_opener(handler)
request = urllib.request.Request(LOGIN_URL1)
response = opener.open(request)
for item in cookie:
    x=item.value

LOGIN_URL2 = 'https://www.alphavantage.co/create_post/'
params = {
"first_text": "xx",
"last_text": "yy",
"occupation_text": "Investor",
"email_text": "cc@bb.cc"
}

headers = {
"Referer": "https://www.alphavantage.co/support/",
"Cookie": "csrftoken={0}".format(x),
"X-CSRFToken":"{0}".format(x)
}

postdata = urllib.parse.urlencode(params).encode()
req = urllib.request.Request(LOGIN_URL2, postdata, headers)
response = urllib.request.urlopen(req)
print(response.read())