Please enable JavaScript.

Coggle requires JavaScript to display documents.

Clean Architecture - Coggle Diagram

- - - - through polymorphism can control all source code dependencies
        
        Dependency inversion (safer with OO than before) ->
        
        ->plugin arch
        
        ->independent deployability
        
        -> independent developability
    - - 'polymorphism' - had this with C and UNIX drives plugins. 0 pts
      - 'inheritance' - could masquerade DSs with C, but OOP a bit easier. 0.5pt
      - 'encapsulation' - C had this with header files, C++ broke! 0pts
  - - - Deadlocks
      - Race conditions
      - Concurrency issues
- - - - what: organise by feature folders. A slice is one user action
      - how: contract or mix with N hoz layers
      - can coexist with: CQRS
        
        why: different reqs
        
        writes
        
        different shape than reads
        
        validation
        
        biz rules
        
        reads
        
        fast!
        
        return DTOs
        
        Mediatr
        
        lib that routes request to handler
      - when: med-large code bases/teams working indep/feature-heavy apps
      - why: code isolation by feature
      - what: code organisation pattern, so pair with DDD/clean arc etc
    - - what: organise by technical concern
      - How: Pres -> app -> domain -> infra
      - why: clear technical separation, simple to start
    - - what: split system into business modules
      - how: large and strong biz boundaries
      - how: one deployable app
      - why: simpler than micros, easier testing, can evolve into micros. later
    - - what: structure communicates business purpose, reflect biz not framework
      - pair with vertical slices with top level and business areas: Tickets (CreateTicket, RefundTicket, GetTicket), Payments (TakePayment, RefundPayment)
  - - - Event sourcing
      - Saga
      - Outbox
      - CQRS
- - - - Common closure principle
      - Axis of change -> architectural boundaries