42 Technology (United Kingdom)

In this chapter, you will be exploring the topic of remote data, learning what exactly it is, types of it, how to interact with it, and what to consider when doing so. You will then build upon this learning by building a new widget:, the Weather Widget, to display the current weather. This will be done by interacting directly with the Open Weather API. You will get exposure to handling HTTP requests and responses with an API, how to handle the response being in a JSON format and the varying levels of flexibility when mapping to the JSON data. You will finish off by simplifying the implementation with a fantastic NuGet package that generates source code for you, simply from an interface you define to represent the web service.

Testing is such an important part of the software development process; it enables you to verify that what you have delivered is what was required and also validate that the software behaves correctly. It also provides the safety net of catching regressions in the products that you build.