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Lessons (12)

• Domain-Driven Design: Tactical Patterns

  … load → call domain → save → publish PlaceOrderHandler Domain event Something that happened in the domain OrderPlaced , OrderShipped Factory Encapsulates …

• Domain-Driven Design: Strategic Design

  … domain experts and developers put orange sticky notes on a long wall, one for every domain event (something …

• Vertical Slice Architecture & the Modular Monolith

  … uses a rich domain model export async function placeOrder(deps: { orders: OrderRepository; events: EventBus }, cmd: PlaceOrderCommand) { const order …

• Choosing an Architecture

  … Compare every style in this course on one page, match them to your team, domain and scale, see …

• Finding Service Boundaries with DDD

  … 6. Event storming: put business experts and developers in a room with sticky notes for every domain event …

• Hexagonal Architecture (Ports & Adapters)

  … domain + ports + use case ts // core/domain/Loan.ts export class Loan { constructor(readonly bookId: string, readonly memberId …

• What Is Software Architecture?

  … inside an app (Layered, Clean, Hexagonal, Onion), the domain (DDD), and the whole system (microservices, event-driven, serverless …

• Architecture Patterns at Scale

  … domain ownership/deployments Distributed operations and contracts Serverless Bursty event-driven work Cold starts, limits, observability Event-driven …

• CQRS & Event Sourcing

  … admin panel), small teams without the need, domains where eventual consistency confuses users. ⚠️ Apply these patterns to one …

• Event-Driven Architecture

  … Inside a modular monolith , modules can communicate with in-process domain events , keeping modules decoupled without any broker …

• Topics, Partitions & Offsets

  … tips: use a consistent scheme such as <domain .<entity .<event : shop.orders.placed , shop.payments.completed . Partitions: the …

• MVC, MVP & MVVM

  … it just displays what it's told and forwards user events. The Presenter holds all the presentation logic …