Install

npm i @expressots/core

What This Package Does

ExpressoTS Core is the foundation of the framework. It provides dependency injection, routing, middleware orchestration, lifecycle hooks, interceptors, guards, error handling, and the application bootstrap. Everything needed to structure and run a server-side TypeScript application with minimal boilerplate.

Quick Look

import { bootstrap } from "@expressots/core";
import { App } from "./app";

void bootstrap(App);

Requirements and Packaging

• Node.js 20.19.0 or newer.
• Ships dual builds: ESM (import) and CommonJS (require), selected automatically via conditional exports.
• Subpath entry points: @expressots/core/testing, @expressots/core/di, @expressots/core/render, @expressots/core/path-resolver.
• Validation is bring-your-own: zod, yup, and class-validator are optional peer dependencies. Install only the one you use; the matching adapter is detected at runtime.

Testing Utilities

import {
  createTestApp,
  setupExpressoTSMatchers,
} from "@expressots/core/testing";

const app = await createTestApp(App);
await app.request().get("/health").expectStatus(200);

Documentation

For guides, API reference, architecture patterns, and examples visit doc.expresso-ts.com.

Contributing

Welcome to the ExpressoTS community. See the Contributing Guide for how to get involved.

Support the project

• GitHub Sponsors
• Star the organization on GitHub
• Discord
• Report an issue

License

MIT. See LICENSE.