Over six sessions, this mini-course builds a Java service end to end: from an empty repository to a running API. The goals are to deepen your Java practice, and to give you a sense of what it's like to work in a software development team.
Along the way you'll:
- Write unit tests, and write them before the code they test
- Use a build tool and version control the way a team would
- Shape raw data into types that model the problem
- Refactor working code and trust your tests to catch you
- Read another developer's documentation and build on their library
- Decide how your API should behave when a caller gets it wrong
- Call a remote service, and handle what happens when it's unavailable
- Return to code you wrote weeks earlier and pick it back up
- Have your work reviewed, and respond to the comments
- Release new versions of your application
A small Spring Boot service that answers "What will the sky be like on a given night at a given place?"
- Feature one: moon phase and illumination for a date, calculated locally.
- Feature two: the same data from a remote API, used as a second source and a cross-check.
Astronomy has known new-moon dates, which means the tests can assert against real answers.
Not included at this time:
Database
Authentication
Frontend
Docker
Availability
Reactive elements
