Paylocity API Access Token - python-3.x

Question

I have been trying to retreive the access token for the paylocity API. I am able to get it through postman with the client id and client secret however when I try and retrieve it with Python I get the message {"error":"invalid_client"}. This is the code that I am using
import json
import base64
import requests
url = "https://api.paylocity.com/IdentityServer/connect/token"
client_id = ''
client_secret = ''
auth = (f'{client_id}:{client_secret}')
headers = {
'content-type': "application/x-www-form-urlencoded",
'Authorization': f"Basic {auth}"
}
body = "grant_type=client_credentials&scope=WebLinkAPI"
response = requests.request("POST", url, data=body, headers=headers)
print (response.text)

Answer 1

In case someone else stumbles on this response, since there are not many search hits for this:
To get the token from Paylocity and call their API:
client_id = {your client id string}
client_secret = {your client secret}
company_id = {your company id from Paylocity dashboard, without leading 'CS'}
prod_auth_url = 'https://api.paylocity.com/IdentityServer/connect/token'
body_params = urllib.parse.urlencode({'grant_type': 'client_credentials','scope':'WebLinkAPI'})
# Requests can use auth= for basic authentication
auth_response = requests.post(prod_auth_url,auth=(client_id, client_secret), data=urllib.parse.urlencode(body_params))
response = json.loads(auth_response.content)
api_call_headers = {'Authorization': 'Bearer ' + response['access_token']}
# Get all employees for a company
empl_response = requests.get(f"https://api.paylocity.com/api/v2/companies/{company_id}/employees/",headers=api_call_headers, verify=False)
pd.DataFrame(json.loads(empl_response.text))
Make sure you're using the client_id and client_secret for your token call, not the company id. It is not necessary to use any OAuth2 libraries to access the API.

Answer 2

for only the token I do:
import requests, json
token_url = "https://apisandbox.paylocity.com/IdentityServer/connect/token"
#client credentials
client_id = 'XXXX'
client_secret = 'XXXXXX'
#step A, B - single call with client credentials as the basic auth header - will return access_token
data = {'grant_type': 'client_credentials', 'scope':'WebLinkAPI'}
access_token_response = requests.post(token_url, data=data, verify=False, allow_redirects=False, auth=(client_id, client_secret))
print(access_token_response.headers)
print (access_token_response.text)
And after that code I recived the Token the same as the PostMan.
you can check: https://developer.byu.edu/docs/consume-api/use-api/oauth-20/oauth-20-python-sample-code
for more information/options.

Answer 3

Try the following with the same variables:
from requests_oauthlib import OAuth2Session
from oauthlib.oauth2 import BackendApplicationClient
client = BackendApplicationClient(client_id=client_id)
oauth = OAuth2Session(client=client)
token = oauth.fetch_token(token_url=url, client_id=client_id, client_secret=client_secret, body=body, headers=headers)