General · Learning hub

Event-Driven Architecture notes for developers

Master Event-Driven Architecture with a curated set of 2 developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · Event-Driven Architecture

Core Event Patterns

Core Event Patterns Commands vs. Events A command is a request for something to happen, addressed to one specific handler, which can accept or reject it. An event is a broadcast fact that something already happened — nam…

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02 · Event-Driven Architecture

Coordination & Reliability

Coordination & Reliability Choreography vs. Orchestration Choreography: each service reacts to events and decides its own next step, with no central coordinator — maximizes decoupling, but the overall process becomes imp…

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TypeScriptgeneral

Interview Questions

TypeScript Interview Questions Comprehensive TypeScript interview questions covering type system, generics, utility types, and best practices: Fundamentals 1. What is TypeScript? TypeScript is a typed…

Mar 28, 2026

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TypeScriptgeneral

Advanced Types (Generics & Utility Types)

TypeScript Advanced Types Generics // Generic function function identity<T>(arg: T): T { return arg; } const num = identity<number>(42); // Explicit const str = identity('hello'); // Inferred // Gener…

Mar 3, 2026

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