In the previous chapter, we built a simple ToDo List mobile app with a pluggable data access architecture. Here we are going to replace the data access logic. Instead of storing To-Do data in the local database, we are going to store them in the Amazon Simple Storage Service in the form of a JSON file. This is a very powerful and cost-effective solution. We will be able to access the same To-Dos from apps running on different mobile devices effectively implementing a serverless architecture.
The first step is to make sure that we have an account in the Amazon Web Services. If you do not have an AWS account, you can create one at http://aws.amazon.com/free/. In the first year, you can use certain services for ...