Patterns of a pragmatic functional architecture

on YouTube ↗34m

" summary

Demonstrates a pragmatic, purely functional architecture implemented in Scala: composes domain algebras into an application via Free monads and coproducts, injects individual algebras into the combined program with the Inject type class and resolves behavior by folding the free program with separate interpreters (console via Id, in‑memory datasource), uses trampolines to avoid stack blowup, shows dependency injection with implicits and Kleisli, and preserves exception types using rapture.Result so runtime errors remain recoverable and testable.

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" chapters (11)

1. 0:00Introduction
2. 2:52Architectural Goals
3. 4:50Free Monads Explained
4. 7:27Defining the Algebra
5. 10:35Combining Algebras
6. 14:55Program Composition
7. 18:26Interpreting the Program
8. 21:55Running the Program
9. 23:45Dependency Injection
10. 26:08Handling Exceptions
11. 32:31Conclusion

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