`excpetionally` demo

This is a demonstration how exceptionally can be used to improve your code quality.

You can find the related slides here.

branches

This repository has a few branches to show you how to get from zero exception handling to fully typed exceptions.

The branches show:

1-base: the starting point that offers no exception handling
2-throw-errors: throw errors whenever something could go wrong during fetch
3-data-exception-tuple: return exceptions instead of throwing them using the [data,exception]-tuple approach
4-exception-classes: return different exception classes to be able to distinguish them
5-exceptionally: refactor the codebase using exceptionally showing it's easy integration and utility functions
6-complete: showcase usage of utility functions