Async injection

on YouTube ↗01h 01m

" summary

Claims a concrete pattern: move impure DB calls to the edge, change repository reads to produce Task or collections and inject decision logic into the async monad instead of making domain methods async. Shows C# code: add Select/SelectMany for Task/Lazy, implement a lightweight Maybe<T> with Match, use Select to map reservations and defer repository.Create to the controller. Result: business logic stays deterministic and synchronous; I/O stays async at the boundary, and the examples compile and run.

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" chapters (23)

1. 0:00Start
2. 3:21Dependency Injection
3. 3:42Constructor Injection
4. 5:23Domain Driven Design
5. 8:05The Dependency Inversion Principle
6. 8:43Leaky Abstraction
7. 10:27Post Method
8. 12:37How Do You Get the Value out of My Monette
9. 13:31The Xy Problem
10. 15:35What a Monad Is
11. 15:50What a Functor Is
12. 21:16Add a Select Method as an Extension Method
13. 24:00Query Syntax
14. 29:06Unit Containers
15. 29:20Semi Containers
16. 33:19Constructor Overload
17. 34:57Structure Preserving Map
18. 41:41Aggregate Methods
19. 44:31How Do I Combine Dependency Injection with a Sink and a Weight without Leaky Abstractions
20. 45:51Impure Operation
21. 50:07Move Repository Create to the Post Method
22. 52:36Match Method
23. 55:43Compiler Warning

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