Jak wysłać żądanie POST jako JSON?

data = {
        'ids': [12, 3, 4, 5, 6 , ...]
    }
    urllib2.urlopen("http://abc.com/api/posts/create",urllib.urlencode(data))

Chcę wysłać żądanie POST, ale jednym z pól powinna być lista liczb. Jak mogę to zrobić ? (JSON?)

Author: TIMEX, 2012-03-17
Source

5 answers

Jeśli twój serwer oczekuje, że żądanie POST będzie json, musisz dodać nagłówek, a także serializować dane dla Twojego żądania...

Python 2.x 

import json
import urllib2

data = {
        'ids': [12, 3, 4, 5, 6]
}

req = urllib2.Request('http://example.com/api/posts/create')
req.add_header('Content-Type', 'application/json')

response = urllib2.urlopen(req, json.dumps(data))

Python 3.x

Https://stackoverflow.com/a/26876308/496445

Jeśli nie podasz nagłówka, będzie to domyślny typ application/x-www-form-urlencoded.

 130
Author: jdi,
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2018-05-05 01:09:28

Polecam korzystanie z niesamowitego modułu requests.

Http://docs.python-requests.org/en/v0.10.7/user/quickstart/#custom-headers 

url = 'https://api.github.com/some/endpoint'
payload = {'some': 'data'}
headers = {'content-type': 'application/json'}

response = requests.post(url, data=json.dumps(payload), headers=headers)
 93
Author: FogleBird,
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2012-03-17 01:33:15

Dla Pythona 3.4.2 znalazłem, że będzie działać: 

import urllib.request
import json      

body = {'ids': [12, 14, 50]}  

myurl = "http://www.testmycode.com"
req = urllib.request.Request(myurl)
req.add_header('Content-Type', 'application/json; charset=utf-8')
jsondata = json.dumps(body)
jsondataasbytes = jsondata.encode('utf-8')   # needs to be bytes
req.add_header('Content-Length', len(jsondataasbytes))
print (jsondataasbytes)
response = urllib.request.urlopen(req, jsondataasbytes)
 38
Author: mike gold,
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2018-05-21 08:05:14

Musisz dodać nagłówek, albo otrzymasz błąd http 400. Kod działa dobrze na python2.6, centos5. 4

Kod: 

    import urllib2,json

    url = 'http://www.google.com/someservice'
    postdata = {'key':'value'}

    req = urllib2.Request(url)
    req.add_header('Content-Type','application/json')
    data = json.dumps(postdata)

    response = urllib2.urlopen(req,data)
 4
Author: YuanYe,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2014-02-24 13:56:40

To działa idealnie dla Python 3.5, jeśli adres URL zawiera ciąg zapytania / wartość parametru,

Request URL = https://bah2.com/ws/rest/v1/concept/
Wartość parametru = 21f6bb43-98a1-419d-8f0c-8133669e40ca

import requests

url = 'https://bahbah2.com/ws/rest/v1/concept/21f6bb43-98a1-419d-8f0c-8133669e40ca'
data = {"name": "Value"}
r = requests.post(url, auth=('username', 'password'), verify=False, json=data)
print(r.status_code)
 4
Author: MAX,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2018-06-26 11:21:34