Some examples of Unleashed API in Python 3.4

unleashed_api.py

__author__ = 'tim'

import requests.auth
import binascii
import hashlib
import hmac
import prefs
import json

# tested only with python 3.4
# the prefs file has the API key and ID
# this shows fetching and updating a customer in Unleashed
# I claimed I could do this in 30 minutes but it took a bit longer. The API documentation is not all it could be
# the Sandbox is very helpful. IN JSON mode post your JSON into the field which says XML. 

# based on code copyright 
# The MIT License (MIT)

# Copyright (c) 2013 Jonathan Sokolowski
# https://github.com/jsok/unleashed
# this is licenced under the same terms
# Copyright (c) Tim Richardson tim@growthpath.com.au

class UnleashedAPI(requests.auth.AuthBase):
    def __init__(self):
        self.api_key = prefs.api_key.encode('utf-8')
        self.api_id = prefs.api_id
        self.api_url = 'https://api.unleashedsoftware.com'

    def get_query(self, url):
            parts = url.split('?')
            if len(parts) > 1:
                return parts[1]
            else:
                return ""

    def __call__(self, r):
        query = self.get_query(r.url) #we encode only the query part

        hashed = hmac.new(self.api_key, query.encode('utf-8'), hashlib.sha256)
        signature = binascii.b2a_base64(hashed.digest())[:-1]
        r.headers['api-auth-signature'] = signature
        r.headers['api-auth-id'] = self.api_id
        return r

    def _get_request(self, method, params=None):
        params = params or {}
        headers = {
            'content-type': 'application/json',
            'accept': 'application/json',
        }
        resp = requests.get(
            self.api_url + '/' + method,
            headers=headers,
            params=params,
            auth=self
        )
        return resp

    def _post_request(self, method, data):
        headers = {
            'content-type': 'application/json',
            'accept': 'application/json',
        }
        resp = requests.post(
            self.api_url + '/' + method,
            data,
            headers=headers,
            auth=self
        )
        return resp

    def get_a_customer(self,cust_id):
        #return JSON
        resp = self._get_request('Customers',params=dict(customerCode=cust_id))
        json_parsed = resp.json()
        return json_parsed['Items'][0]

    def update_a_customer(self,data):
        #despite docs, we must always provide CustomerName, Guid,CustomerCode (according to their Sandbox)
        resp = self._post_request('Customers/{id}'.format(id=data['Guid']),json.dumps(data))
        return resp

# json which works from sandbox
# {"StopCredit": false,"CustomerName":"Ace Outlets","Guid":"68754646-f5b7-466c-9838-01bca7ff3e4c","CustomerCode":"ACE001"}


if __name__ == '__main__':
    unleashedAPI = UnleashedAPI()
    cust = unleashedAPI.get_a_customer('ACE001')
    data = {}
    data['Guid'] = cust['Guid']
    data['CustomerCode'] = cust['CustomerCode']
    data['CustomerName'] = cust['CustomerName']
    data['StopCredit'] = True

    resp = unleashedAPI.update_a_customer(data)
    print(resp)