@daiso-tech/core

@daiso-tech/core is a TypeScript-first backend toolkit designed for building resilient web applications and API servers. It provides a suite of decoupled, high-performance components that work seamlessly across any JavaScript runtime.

Explore the Docs | NPM Package

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🚀 Key Features

• Framework Agnostic No Dependency Injection (DI) containers required. Effortlessly integrate with Express, NestJS, AdonisJS, or full-stack frameworks like Next.js, Nuxt, and TanStack Start.
• Runtime Portability Leverages the Adapter Pattern to decouple your logic from the runtime. Switch between Node.js, Cloudflare Workers (Durable Objects), or AWS Lambda without rewriting core logic.
• Test-Driven Excellence Every component includes a built-in "in-memory" adapter. Run unit tests instantly without spinning up databases or external infrastructure.
• Type Safety & DX Deep IntelliSense support and strict type-safety. Designed for auto-imports and modern developer workflows.
• Standard Schema Support Native integration with Standard Schema, allowing you to use Zod, Valibot, or ArkType for unified runtime validation.

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🛠 Quick Start

npm install @daiso-tech/core
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📦 Core Components

The @daiso-tech/core ecosystem provides a growing collection of officially maintained primitives for building robust systems:

Resilience

Circuit Breaker	Prevents cascading failures by stopping calls to failing external services.
Rate Limiter	Controls traffic flow to protect your network interfaces and services.
Retry	Retry middleware with support for different backoffs with jitter.
Timeout	Timeout middleware that prevents resource exhaustion by killing long-running tasks.
Fallback	Fallback middleware that ensures graceful degradation by returning default values.

Concurrency

Lock	Ensures mutual exclusion for shared resources across servers or procceses.
Semaphore	Limits the number of concurrent servers or procceses accessing a specific resource.
Shared Lock	Reader-writer lock coordinating concurrent reads and exclusive writes.

Misc

Cache	High-performance caching with support for multiple store adapters.
EventBus	Decoupled event-driven communication (In-memory or Distributed via redis).

Utilities

Hooks	Agnostic sync/async middleware that integrates with all components.
Serde	Custom serialization/deserialization logic that integrates with all components.
Collection	Precision filtering and transformation for Arrays, Iterables, AsyncIterables and ArrayLike objects.
TimeSpan	A duration class offering seamless time manipulation while integrating with all components.

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🛠 Quick Start

npm install @daiso-tech/core
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