The Google Shopping Content Python SDK by Google access the JSON API, providing opportunities to list ads, drive traffic, and increase sales. Along with Api Key authentication and OAuth 2.0 authorization, resources explains how to build a service object, nest collections, make requests, and work with responses. Django support available.
With e-commerce becoming more popular by the day, along with the convenience of shopping online and having goods delivered directly, are local retailers in danger of losing many of their regular in-store spenders? Deliv is a delivery service application that aims to tackle this very issue and offers retailers who decide to provide online shopping options, a same-day delivery solution that can match or beat the costs of having items shipped. The Deliv API makes it possible for developers to integrate this functionality with other applications.
The daily deal space is hot, and has been for some time now. In the past year 23 million Americans have purchased a daily deal or group coupon according to a survey conducted for the American Institute of CPAs by Harris Interactive (source). Not to mention Freelance websites, such as Freelancer and Elance, have been flooded with thousands of "Groupon clone", "daily deal site" and related job postings - a general sign that many more businesses are still trying to get in.