@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.

This framework is specifically optimized for building modular monoliths or majestic monoliths rather than distributed server architectures.

Explore the Docs | NPM Package

🚀 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 integration and 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.

📦 Core Components

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

🛡️ Resilience

| Component | The Problem | The Daiso Solution | | :--- | :--- | :--- | | Circuit Breaker | Cascading failures from external services. | Stops calls to failing services to maintain system stability. | | Rate Limiter | Network interfaces overwhelmed by traffic. | Controls traffic flow to protect services. | | Hooks | Brittle retry/timeout logic. | Agnostic middleware for Retry, Fallback, and Timeout. |

🚦 Concurrency

| Component | Use Case | Developer Benefit | | :--- | :--- | :--- | | Lock | Shared resources accessed by multiple processes. | Ensures mutual exclusion to prevent race conditions. | | Semaphore | Limiting access to a specific resource. | Limits the number of concurrent processes. | | Shared Lock | Coordinating reads and writes. | Manages concurrent reads and exclusive writes. |

💾 Storage

| Component | Description | Adapters | | :--- | :--- | :--- | | Cache | High-performance caching. | Supports multiple store adapters. | | FileStorage | High-performance file storage. | Supports multiple storage adapters. |

📥 Messaging

| Component | Description | Adapters | | :--- | :--- | :--- | | EventBus | Decoupled communication. | In-memory or Distributed. |

🧰 Utilities

| Component | Feature | | :--- | :--- | | Serde | Custom serialization/deserialization that integrates with all other components. | | TimeSpan | Easily manage durations that seamlessly integrate with all other components. | | FileSize | Easily manage file-size that seamlessly integrate with all other components. | | Collection | Precision filtering and transformation for Arrays, Iterables, and AsyncIterables. |

🛠 Quick Start

npm install @daiso-tech/core