A simple script to update Chargify subscriptions to the most recent version.

update_chargify_sub.py

"""
A simple script to update Chargify subscriptions to the most recent version.
"""
import base64
import requests
import json

API_KEY = 'Chargify API Key'
HOST = 'https://<Chargify Host Name>.chargify.com'

headers = {
    "Authorization": "Basic %s" % base64.encodestring('%s:%s' % (API_KEY, 'x'))[:-1],
    "User-Agent": "Migrate-to-Latest-Version",
    "Content-Type": "application/json"
}

def update_plan(id, handle):
    
    print 'Updating %s to %s' % (id, handle)

    d = {
        "subscription":{
            'product_handle' : handle
        }
    }    
    data = json.dumps(d)
    url = '%s/subscriptions/%s.json' %  (HOST, id)

    r = requests.put(url, data=data, headers=headers)
    
    if r.error:
        print 'Error: %s ID: %s HANDLE: %s' % (r.error, id, handle)


def update(pages=10):
    
    for p in range(1, pages+1):
        r = requests.get('%s/subscriptions.json?per_page=200&page=%s' % (HOST, p), headers=headers)
        data = json.loads(r.content)

        # No more subs:
        if not data:
            break

        # We only update the plans that were not canceled.
        subs = [s['subscription'] for s in data if s['subscription']['canceled_at'] is None]

        for s in subs:
            handle = s['product']['handle']
            id = s['id']
    
            #update to testing account.
            update_plan(id, 'testing')
    
            #update back to the right plan
            update_plan(id, handle)


#Spot checking and testing.
def update_one(id):
    sub = get_id(id)
    handle = sub['product']['handle']
        
    #update to testing account.
    update_plan(id, 'testing')
    
    #update back to the right plan
    update_plan(id, handle)

#Utils that help 
def get_id(id):
    url = '%s/subscriptions/%s.json' % (HOST, id)
    r = requests.get(url,  headers=headers)
    return json.loads(r.content)['subscription']
    
def get_all(pages=10):
    
    subs = []
    for p in range(1, pages+1):
        r = requests.get('%s/subscriptions.json?per_page=200&page=%s' % (HOST, p), headers=headers)
        data = json.loads(r.content)
        
        # No more subs:
        if not data:
            break

        subs.extend([s['subscription'] for s in data])

    return subs

if __name__ == '__main__':
    update()

Managed to stumble across this exactly when I needed it. Thanks!