Python Request Token from REST API - python

Im struggling with this Dokumentation here:
Send your credential base64 encoded to the authentication server.
Get a response including an UUID for authentication.
Use the UUID to authenticate REST requests.
It shows this request as an example:
**Header**
“`json
{
‘Content-Type’: ‘application/x-www-form-urlencoded’,
‘authorization’: ‘Basic <base64 encoded username:password>’
}
“`
**Body**
“`json
{
‘grant_type’: ‘client_credentials’
}
“`
How do I turn with into a requests.post() ?

you have to build dictionaries and post them with requests :
import requests
import base64
import json
username = "user"
password = "password"
url = 'https://myurl.com'
headers = {}
headers['Content-Type'] = 'application/x-www-form-urlencoded'
headers['authorization'] = 'Basic ' + base64.b64encode(bytes(username + ':' + password, 'utf-8')).decode('utf-8')
body = {}
body['grant_type'] = 'client_credentials'
r = requests.post(url, data=json.dumps(body), headers=json.dumps(headers))

Related

REST post request with API key and Windows login credentials

I am trying to replicate what this C# code for a REST API post with requests in python.
public static string SendData(string request, bool bIsJson,string apiKey)
{
var sMediaTYpe = bIsJson ? "application/json" : "application/xml";
var sResponse = System.String.Empty;
using (var c = new HttpClient(new HttpClientHandler() {UseDefaultCredentials = true}))
{
c.DefaultRequestHeaders.Add("ApiKey", apiKey);
var task = c.PostAsync(ConfigurationManager.AppSettings["GatewayRestUrl"],
new StringContent(request, Encoding.UTF8, sMediaTYpe));
Task.WaitAll(task);
var responseTask = task.Result.Content.ReadAsStringAsync();
Task.WaitAll(responseTask);
sResponse = responseTask.Result;
}
return sResponse;
}
From what I understand, this sends the windows login credentials and an API key that I have. I cannot figure out how to replicate this in python
This is what I have so far, but I am getting 401 responses
import requests
import getpass
restURL = 'url'
method = "post"
headers = {'ApiKey': 'key'}
username = getpass.getuser()
response = requests.request(method, restURL, headers=headers, auth=(username,getpass.getpass()), verify=False, json=params)
Thank you to #wkl. Seems it was a duplicate.
If anyone in the future finds this question I was able to use the requests_negotiate_sspi package to perform the windows credential auth.
import requests
from requests_negotiate_sspi import HttpNegotiateAuth
response = requests.request(method, restURL, headers=headers, auth=HttpNegotiateAuth(), verify=False, json=params)

Python - OAUTH2 How to get access token using PCKE?

I am trying to get this access token with Python. With Postman I can get an access token. After configurations in the screenshots, I click the Get Access Token button, and A pop-up throws for username and password. Then I fill them. After that, I can get an access token from Postman.
To get an access token with Python, I wrote the code below. In the first get request, I get the cookies and Redirect URL(to post user credentials). Then, I post user credentials and cookies to Redirected URL. After that, the response header["location"] must include a code parameter to get the token. But, the header parameter does not have a code parameter. It has an Authorization URL with query parameters. How can get this code parameter? Finally, I will post a request(to token URL) with this code to get an access token on the response body.
import base64
import hashlib
import json
import os
import re
import urllib.parse
import requests
from bs4 import BeautifulSoup
from rich import print
username = 'username '
password = 'password '
client_id = 'xxxxxxxxxxxxxxxxxxxxxxxxxx'
client_secret = 'yyyyyyyyyyyyyyyyyyyyyyyyyy'
prod_url = 'https://url:port'
callback_url = prod_url + '/main/ifsapplications/projection/oauth2/callback'
authorization_url = prod_url + '/openid-connect-provider/idp/authorization'
token_url = prod_url + '/openid-connect-provider/idp/token'
code_challenge_method = "S256" #SHA-256
scope = 'openid'
response_type ='code'
#Add auth data to request headers
#Grant type = authorization code with pkce
#send client credentials in body
code_verifier = base64.urlsafe_b64encode(os.urandom(40)).decode('utf-8')
code_verifier = re.sub('[^a-zA-Z0-9]+', '', code_verifier)
code_challenge = hashlib.sha256(code_verifier.encode('utf-8')).digest()
code_challenge = base64.urlsafe_b64encode(code_challenge).decode('utf-8')
code_challenge = code_challenge.replace('=', '')
resp = requests. Get(
url=authorization_url,
params={
"response_type": response_type,
"client_id": client_id,
"scope": scope,
"redirect_uri": callback_url,
"code_challenge": code_challenge,
"code_challenge_method": code_challenge_method,
},
allow_redirects=False
)
cookie = resp.headers['Set-Cookie']
cookie = '; '.join(c.split(';')[0] for c in cookie. Split(', '))
soup = BeautifulSoup(resp.text, 'html.parser')
form_action = soup. Find('a').text
resp = requests. Post(
url=form_action,
data={
"username": username,
"password": password
},
headers={"Cookie": cookie,
"Referer": form_action},
allow_redirects=False
)
redirect = resp.headers['Location']
print(resp.text)
print(resp.headers)
OUTPUT:

Azure DevOps Python {"count":1,"value":{"Message":"Unexpected character encountered while parsing value: q. Path '', line 0, position 0.\r\n"}}

Trying to get Work Items for an Azure DevOps Project.
import requests
import base64
from azure.devops.connection import Connection
from azure.devops.v5_1.work_item_tracking.models import Wiql
from msrest.authentication import BasicAuthentication
organization = "https://dev.azure.com/dev"
pat = 'ey3nbq'
authorization = str(base64.b64encode(bytes(':'+pat, 'ascii')), 'ascii')
headers = {
'Accept': 'application/json',
'Content-Type': 'application/json',
'Authorization': 'Basic '+authorization
}
payload = {
"query": "SELECT [System.Id] FROM workitemLinks WHERE ([Source].[System.WorkItemType] = 'Task') AND ([System.Links.LinkType] = 'System.LinkTypes.Hierarchy-Reverse') AND ([Target].[System.WorkItemType] = 'User Story') MODE (DoesNotContain)"
}
response = requests.post(url="https://dev.azure.com/dev/Agile_Board/_apis/wit/wiql?api-version=5.1", headers=headers, data=payload)
print(response.text)
Gives response 400
Have tried many things, been struggling a bit with this. Any help is much appreciated. How to get project's work items without using their ID . Does the request need to be changed in some way?
Update your post to (json=payload):
response = requests.post(url="https://dev.azure.com/YOUR_ORG/Agile_Board/_apis/wit/wiql?api-version=5.1", headers=headers, json=payload)
or use something like this:
payload_str = "{\"query\": \"SELECT [System.Id] FROM workitemLinks WHERE ([Source].[System.WorkItemType] = 'Task') AND ([System.Links.LinkType] = 'System.LinkTypes.Hierarchy-Reverse') AND ([Target].[System.WorkItemType] = 'User Story') MODE (DoesNotContain)\"}"
response = requests.post(url="https://dev.azure.com/YOUR_ORG/Agile_Board/_apis/wit/wiql?api-version=5.1", headers=headers, data=payload_str)
Check this question: How to POST JSON data with Python Requests?

How to add http headers along with data to send a POST request to an API endpoint using Oauth2Session (requests_oauthlib)?

I have a python code like this to interact with an API
from oauthlib.oauth2 import BackendApplicationClient
from requests_oauthlib import OAuth2Session
import json
from pprint import pprint
key = "[SOME_KEY]" # FROM API PROVIDER
secret = "[SOME_SECRET]" # FROM API PROVIDER
api_client = BackendApplicationClient(client_id=key)
oauth = OAuth2Session(client=api_client)
url = "[SOME_URL_FOR_AN_API_ENDPOINT]"
# GETTING TOKEN AFTER PROVIDING KEY AND SECRET
token = oauth.fetch_token(token_url="[SOME_OAUTH_TOKEN_URL]", client_id=key, client_secret=secret)
# GENERATING AN OAuth2Session OBJECT; WITH THE TOKEN:
client = OAuth2Session(key, token=token)
body = {
"key1": "value1",
"key2": "value2",
"key3": "value3"
}
response = client.post(url, data=json.dumps(body))
pprint(response.json())
When I run this py file, I get this response from the API, that I have to include the content type in the header. How do I include the header with Oauth2Session?
{'detailedMessage': 'Your request was missing the Content-Type header. Please '
'add this HTTP header and try your request again.',
'errorId': '0a8868ec-d9c0-42cb-9570-59059e5b39a9',
'simpleMessage': 'Your field could not be created at this time.',
'statusCode': 400,
'statusName': 'Bad Request'}
Have you tried to you send a header paramter with this requests?
headers = {"Content-Type": "application/json"}
response = client.post(url, data=json.dumps(body), headers=headers)
This is how I was able to configure the POST request for exchanging the code for a token.
from requests_oauthlib import OAuth2Session
from oauthlib.oauth2 import WebApplicationClient, BackendApplicationClient
from requests.auth import HTTPBasicAuth
client_id = CLIENT_ID
client_secret = CLIENT_SECRET
authorization_base_url = AUTHORIZE_URI
token_url = TOKEN_URI
redirect_uri = REDIRECT_URI
auth = HTTPBasicAuth(client_id, client_secret)
scope = SCOPE
header = {
'User-Agent': 'myapplication/0.0.1',
'Content-Type': 'application/x-www-form-urlencoded',
'Accept': 'application/json',
}
# Create the Authorization URI
# Not included here but store the state in a safe place for later
the_first_session = OAuth2Session(client_id=client_id, redirect_uri=redirect_uri, scope=scope)
authorization_url, state = the_first_session.authorization_url(authorization_base_url)
# Browse to the Authorization URI
# Login and Auth with the OAuth provider
# Now to respond to the callback
the_second_session = OAuth2Session(client_id, state=state)
body = 'grant_type=authorization_code&code=%s&redirect_uri=%s&scope=%s' % (request.GET.get('code'), redirect_uri, scope)
token = the_second_session.fetch_token(token_url, code=request.GET.get('code'), auth=auth, header=header, body=body)

"Error parsing JSON" when using Spotify API

I am learning Python and I am trying to create a playlist using the Spotify web api but get a http 400 error: Error parsing json. I guess it has to do with an incorrect variable type in the token but I am having a really hard time debugging it as I can't figure out a way to see the post request in raw format.
Posting through the API requires authorizing and this is the script I've created for that:
import requests
import base64
requests.packages.urllib3.disable_warnings()
client_id = 'ID'
client_secret = 'SECRET'
redirect_uri = 'http://spotify.com/'
scope = 'playlist-modify-private playlist-read-private'
def request_token():
# 1. Your application requests authorization
auth_url = 'https://accounts.spotify.com/authorize'
payload = {'client_id': client_id, 'response_type':'code','redirect_uri':redirect_uri}
auth = requests.get(auth_url,params = payload)
print '\nPlease go to this url to authorize ', auth.url
# 2. The user is asked to authorize access within the scopes
# 3. The user is redirected back to your specified URI
resp_url = raw_input('\nThen please copy-paste the url you where redirected to: ')
resp_code= resp_url.split("?code=")[1].split("&")[0]
# 4. Your application requests refresh and access tokens
token_url = 'https://accounts.spotify.com/api/token'
payload = {'redirect_uri': redirect_uri,'code': resp_code, 'grant_type': 'authorization_code','scope':scope}
auth_header = base64.b64encode(client_id + ':' + client_secret)
headers = {'Authorization': 'Basic %s' % auth_header}
req = requests.post(token_url, data=payload, headers=headers, verify=True)
response = req.json()
return response
This is the function actually trying to create the playlist using the authorization token (import authorizer is the function above):
import requests
import authorizer
def create_playlist(username, list_name):
token = authorizer.request_token()
access_token = token['access_token']
auth_header = {'Authorization': 'Bearer {token}'.format(token=access_token), 'Content-Type': 'application/json'}
api_url = 'https://api.spotify.com/v1/users/%s/playlists' % username
payload = {'name': list_name, 'public': 'false'}
r = requests.post(api_url, params=payload, headers=auth_header)
But whatever I try it only leads to a 400 error. Can anyone please point out my error here?
Solved by adding a json.dumps for the input: json.dumps(payload) and changing the payload to be 'data' and not 'params' in the request.
So the new functioning request equals:
r = requests.post(api_url, data=json.dumps(payload), headers=auth_header)

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