Compared with the get request, the post request has one more body part. The parameters of the post request can be placed in the url, the body, or both the url and the body. Of course, the post request can also be without parameters

4 common post submission data types

Posting parameters — application / json format (json passing parameters)

#!/usr/bin/python3
# coding=utf-8
 # Author: text

import requests
cookie = {"PSTM": "553180542","HMACCOUNT": "BA4C08D999D27E4E"}
payload = {"username": "user_name","password": "pass_word"}
r = requests.post(url="http://httpbin.org/post", headers=header, cookies=cookie, json=payload) 
print(r.text)

After fiddler captures the packet, view the original request, as shown in the figure:

Post reference-application / x-www-form-urlencoded format (browser's native form)

#!/usr/bin/python3
# coding=utf-8
# Author: text
import requests

header = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36(KHTML, like Gecko)Chrome/74.0.3729.108 Safari/537.36","Content-Type": "application/x-www-form-urlencoded"}
cookie = {"PSTM": "553180542", "HMACCOUNT": "BA4C08D999D27E4E"}
payload = {"username": "user_name","password": "pass_word"}
r = requests.post(url="http://httpbin.org/post", headers=header, cookies=cookie, data=payload)
print(r.text)

After fiddler captures the packet, view the original request (request parameters can be viewed in Webforms), as shown in the figure:

Post post reference — multipart / form-data format

#!/usr/bin/python3
# coding=utf-8
 # Author: text
import requests

header = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36(KHTML, like Gecko)Chrome/74.0.3729.108 Safari/537.36","Content-Type": "multipart/form-data"}
payload = {"username": "user_name", "password": "pass_word"}
r = requests.post(url="http://httpbin.org/post", headers=header, data=payload)
print(r.text)

After fiddler captures the packet, view the original request, as shown in the figure:

Post post parameter — text / xml format (xml pass parameter)

#!/usr/bin/python3
# coding=utf-8
 # Author: text
import requests

header = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36(KHTML, like Gecko)Chrome/74.0.3729.108 Safari/537.36","Content-Type": "text/xml"}
payload = "<note><to>George</to><from>John</from><heading>Reminder</heading></note>"
r = requests.post(url="http://httpbin.org/post", headers=header, data=payload)
print(r.text)

After fiddler captures the packet, view the original request, as shown in the figure: