🚀 ElysiaJS Modular Starter

NestJS-inspired, blazing-fast TypeScript starter for Bun—built on ElysiaJS.
Features include:

• DI with decorators (@Injectable, @Inject, @Module)
• MVC-style modular controllers, modules, services
• Route parameter decorators (@Param, @Body, @Query)
• Plug-and-play folder structure for scalable Bun APIs
• Auto-mounting/all controller routes from modules
• Clean imports via TypeScript path aliases (@core, etc.)

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Quick Start

bun install
bun run dev

Visit: http://localhost:3000

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Example Controller

import { Controller, Get, Param, Body, Query } from '@core/http';
import { Inject } from '@core/di';
import { UsersService } from './users.service';

@Controller('/users')
export class UsersController {
  constructor(@Inject(UsersService) public svc: UsersService) {}

  @Get('/:id')
  getUser(@Param() params: any, @Query() query: any) {
    return { userId: params.id, query };
  }

  @Post('/')
  createUser(@Body() body: any) {
    return { created: body };
  }
}

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Example Service

import { Injectable } from '@core/di';

@Injectable()
export class UsersService {
  all() { return ['a', 'b', 'c']; }
}

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Main Application Entry

import 'reflect-metadata';
import { Elysia } from 'elysia';
import { AppModule } from './app.module';
import { mountModule } from '@core/di';

const app = new Elysia();
mountModule(app, AppModule);
app.listen(3000);
console.log('Server started on http://localhost:3000');

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Project Structure

src/
  core/
    di/
    http/
  modules/
    users/

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Why Use This Starter?

• TypeScript-first development with Bun and ElysiaJS
• Familiar DI and modular patterns for rapid team onboarding
• Extensible for real projects: just add more folders!

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Requirements

• Bun ≥ 1.0
• ElysiaJS
• "experimentalDecorators": true and "emitDecoratorMetadata": true in tsconfig.json
• reflect-metadata installed and imported