Even though Manga is a monolith application it would be nice to enable OpenTracing to show how to add it following the Clean Architecture principles.

The Jaeger library is a interesting starting point:

• https://github.com/jaegertracing/jaeger-client-csharp
• https://github.com/GokGokalp/OpenTracing-Jaeger-Sample/blob/master/User.API/Startup.cs

It would be great to have an introduction for each topic so I can understand why that topic is relevant e why I should spend time studying it.

This task is going to be open until release 2.0.0, at that point a full review of all code base will be performed.

If you find some public element (class, method, field, etc.) without proper API documentation, feel free to make the PR and reference this issue. However, the issue won't be closed as stated before.

Some hints to write the comments are:

• Use the imperative form.
• Focus on wh

We added code coverage for .py files in #63, but this doesn't cover Cython .pxd or .pyx files. We should get Cython code coverage working.

These might be helpful:

• http://blog.behnel.de/posts/coverage-analysis-for-cython-modules.html
• https://medium.com/@dfdeshom/better-test-coverage-workflow-for-cython-modules-631615eb197a

The test could be similar to https://github.com/CodelyTV/php-ddd-skeleton/blob/master/tests/src/Shared/Infrastructure/Bus/Event/MySql/MySqlDoctrineEventBusTest.php :)