We now have the basic application structure with an entry point; next, we will start writing modules that execute the tasks that the application needs to produce the desired results.
The first thing that we need is to obtain some geocaching data from the Internet, and we want our application to do this for us. There are two common ways of doing this, and they are not restricted only to geocaching data. Many geographical data repositories can be accessed by these methods:
Direct download: This is a download similar to what you do in a browser. There is a link, a request is made to this link, and the download starts.
REST API: Many services offer this kind of data access. REST (Representational State Transfer) is a way of serving data where a client makes requests with a series of constraints, and the server responds with the result. It's particularly useful because it allows the user to customize the data of interest.