How to send POST request?

Question 1

I found this script online:

import httplib, urllib
params = urllib.urlencode({'number': 12524, 'type': 'issue', 'action': 'show'})
headers = {"Content-type": "application/x-www-form-urlencoded",
 "Accept": "text/plain"}
conn = httplib.HTTPConnection("bugs.python.org")
conn.request("POST", "", params, headers)
response = conn.getresponse()
print response.status, response.reason
302 Found
data = response.read()
data
'Redirecting to <a href="http://bugs.python.org/issue12524">http://bugs.python.org/issue12524</a>'
conn.close()

But I don't understand how to use it with PHP or what everything inside the params variable is or how to use it. Can I please have a little help with trying to get this to work?

Question 2

Post request is just post request, regardless what's on server side.

Question 3

This sends a POST request. Then the server responds with 302 (redirect) headers to your POST. What is actually wrong?

Question 4

This script doesn't look python3.2 compat

Question 5

python3 equivalent of this example might be: pastebin.com/Rx4yfknM

Question 6

What I will suggest is install firefox's live http header addon and than open your url in firefox and see the request/response of url in live http header addon than you will understand what params and headers do in your code.

Question 7

If you really want to handle with HTTP using Python, I highly recommend Requests: HTTP for Humans. The POST quickstart adapted to your question is:

>>> import requests
>>> r = requests.post("http://bugs.python.org", data={'number': '12524', 'type': 'issue', 'action': 'show'})
>>> print(r.status_code, r.reason)
200 OK
>>> print(r.text[:300] + '...')
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>
Issue 12524: change httplib docs POST example - Python tracker
</title>
<link rel="shortcut i...
>>>

Question 8

I cannot get the same result as you did above. I wrote another issue number on the page and then run the script but I could not see the Issue number on the result.

Question 9

for the record: a working code recently for me, data={'@number': '12524', '@type': 'issue', '@action': 'show'}

Question 10

How to get json result?

Question 11

If you need to send a JSON object you should do: json={'number': 12524... instead of data=...

Question 12

why does the answer say "If you really want to handle with HTTP using Python"? is it a bad idea to handle HTTP requests? if so, why? can anyone explain please?

Question 13

This is a solution without any external pip dependencies, but works only in Python 3+ (Python 2 won't work):

from urllib.parse import urlencode
from urllib.request import Request, urlopen
url = 'https://httpbin.org/post' # Set destination URL here
post_fields = {'foo': 'bar'} # Set POST fields here
request = Request(url, urlencode(post_fields).encode())
with urlopen(request) as response:
 json = response.read().decode()
print(json)

Sample output:

{
 "args": {}, 
 "data": "", 
 "files": {}, 
 "form": {
 "foo": "bar"
 }, 
 "headers": {
 "Accept-Encoding": "identity", 
 "Content-Length": "7", 
 "Content-Type": "application/x-www-form-urlencoded", 
 "Host": "httpbin.org", 
 "User-Agent": "Python-urllib/3.3"
 }, 
 "json": null, 
 "origin": "127.0.0.1", 
 "url": "https://httpbin.org/post"
}

Question 14

You can't achieve POST requests using urllib (only for GET), instead try using requests module, e.g.:

Example 1.0:

import requests
base_url="www.server.com"
final_url="/{0}/friendly/{1}/url".format(base_url,any_value_here)
payload = {'number': 2, 'value': 1}
response = requests.post(final_url, data=payload)
print(response.text) #TEXT/HTML
print(response.status_code, response.reason) #HTTP

Example 1.2:

>>> import requests
>>> payload = {'key1': 'value1', 'key2': 'value2'}
>>> r = requests.post("http://httpbin.org/post", data=payload)
>>> print(r.text)
{
 ...
 "form": {
 "key2": "value2",
 "key1": "value1"
 },
 ...
}

Example 1.3:

>>> import json
>>> url = 'https://api.github.com/some/endpoint'
>>> payload = {'some': 'data'}
>>> r = requests.post(url, data=json.dumps(payload))

Question 15

Thanks. data=json.dumps(payload) is the key for my usecase

Question 16

replace "data" with "json" would also do the trick

Question 17

Use requests library to GET, POST, PUT or DELETE by hitting a REST API endpoint. Pass the rest api endpoint url in url, payload(dict) in data and header/metadata in headers

import requests, json
url = "bugs.python.org"
payload = {"number": 12524, 
 "type": "issue", 
 "action": "show"}
header = {"Content-type": "application/x-www-form-urlencoded",
 "Accept": "text/plain"} 
response_decoded_json = requests.post(url, data=payload, headers=header)
response_json = response_decoded_json.json()
 
print(response_json)

Question 18

This code has issues with indentation and the header param name.

Question 19

headers parameter is wrong and also we have not any json here. We should use json.dumps(pauload)

Question 20

Thanks @xilopaint and ArashHatami for the syntax error. Corrected now.

Question 21

Your data dictionary conteines names of form input fields, you just keep on right their values to find results. form view Header configures browser to retrieve type of data you declare. With requests library it's easy to send POST:

import requests
url = "https://bugs.python.org"
data = {'@number': 12524, '@type': 'issue', '@action': 'show'}
headers = {"Content-type": "application/x-www-form-urlencoded", "Accept":"text/plain"}
response = requests.post(url, data=data, headers=headers)
print(response.text)

More about Request object: https://requests.readthedocs.io/en/master/api/

Question 22

If you don't want to use a module you have to install like requests, and your use case is very basic, then you can use urllib2

urllib2.urlopen(url, body)

See the documentation for urllib2 here: https://docs.python.org/2/library/urllib2.html.

Question 23

You can use the request library to make a post request. If you have a JSON string in the payload you can use json.dumps(payload) which is the expected form of payload.


 import requests, json
 url = "http://bugs.python.org/test"
 payload={
 "data1":1234,'data2':'test'
 }
 headers = {
 'Content-Type': 'application/json'
 }
 response = requests.post(url, headers=headers, data=json.dumps(payload))
 print(response.text , response.status_code)

user816328 · Accepted Answer · 2012-07-04 08:08:46Z

496

If you really want to handle with HTTP using Python, I highly recommend Requests: HTTP for Humans. The POST quickstart adapted to your question is:

>>> import requests
>>> r = requests.post("http://bugs.python.org", data={'number': '12524', 'type': 'issue', 'action': 'show'})
>>> print(r.status_code, r.reason)
200 OK
>>> print(r.text[:300] + '...')
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>
Issue 12524: change httplib docs POST example - Python tracker
</title>
<link rel="shortcut i...
>>>

Share

Improve this answer

edited Aug 16, 2022 at 10:33

Brōtsyorfuzthrāx's user avatar

Brōtsyorfuzthrāx

4,8095 gold badges43 silver badges59 bronze badges

answered Jul 4, 2012 at 8:08

user816328

Sign up to request clarification or add additional context in comments.

7 Comments

Efe Büyük

Efe Büyük Over a year ago

I cannot get the same result as you did above. I wrote another issue number on the page and then run the script but I could not see the Issue number on the result.

2017年05月05日T11:31:21.663Z+00:00

marr

marr Over a year ago

for the record: a working code recently for me, data={'@number': '12524', '@type': 'issue', '@action': 'show'}

2018年01月05日T03:46:43.727Z+00:00

Yohanes AI

Yohanes AI Over a year ago

How to get json result?

2018年04月26日T09:03:33.153Z+00:00

Seraf

Seraf Over a year ago

If you need to send a JSON object you should do: json={'number': 12524... instead of data=...

2018年08月29日T17:34:36.5Z+00:00

Jan Pisl

Jan Pisl Over a year ago

why does the answer say "If you really want to handle with HTTP using Python"? is it a bad idea to handle HTTP requests? if so, why? can anyone explain please?

2019年10月29日T17:02:31.027Z+00:00

|

CollectivesTM on Stack Overflow

How to send POST request?

7 Answers 7

7 Comments

Comments

2 Comments

3 Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Post as a guest

Linked

Hot Network Questions

CollectivesTM on Stack Overflow

7 Answers 7

7 Comments

Comments

2 Comments

3 Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Post as a guest

Linked

Related