Asi AccessToken

import requests
import json
import sys

base_url = 'https://sandbox-productservice.asicentral.com/api/v4/{0}'
creds = {'Asi':'ASINUMBER', 'Username':'USERNAME', 'Password':'PASSWORD'}

sess = requests.Session()
sess.headers.update({'Content-Type':'application/json', 'Accept':'application/json'})

auth_resp = sess.post(base_url.format('Login'), data = json.dumps(creds))
if auth_resp.status_code == 200:
    sess.headers.update({'AuthToken':auth_resp.json()['AccessToken']})
    #We now have an access token for our session
    #Now we can make requests to get & post products
    #Here's an example of getting all product data for a specific product
    print sess.get(base_url.format('product/%s' % 'REPLACEWITHANEXISTINGXID')).json()
else:
    raise ValueError('Credentials are invalid.')
    sys.exit()