# core-web-controller-pattern - Source: `module/web/doc/simple-controller.ts` - Capability tags: web, controller, route, decorators - Applicability: framework-native - Notes: - Reference controller decorator and endpoint parameter binding patterns. - Use for generated route/controller/service starter output. ## Reference Code ```typescript import { RuntimeError } from '@travetto/runtime'; import { Email, Min, Schema } from '@travetto/schema'; import { Controller, Delete, Get, Post } from '@travetto/web'; @Schema() export class CreateUserDto { username: string; @Email() email: string; } @Schema() export class UserResponseDto { id: string; username: string; email: string; createdAt: string; } @Controller('/api/users') export class UserController { /** * Search users by query */ @Get('/') async searchUsers(query?: string, @Min(1) limit: number = 20): Promise { return []; } /** * Retrieve a user by identifier */ @Get('/:id') async getUserById(id: string): Promise { if (!id || id === '0') { throw new RuntimeError('User not found', { category: 'notfound' }); } return { id, username: 'john_doe', email: 'john@example.com', createdAt: new Date().toISOString() }; } /** * Create a new user account */ @Post('/') async createUser(body: CreateUserDto): Promise { return { id: `usr_${Date.now()}`, username: body.username, email: body.email, createdAt: new Date().toISOString() }; } /** * Delete user account by identifier */ @Delete('/:id') async deleteUser(id: string): Promise<{ deleted: boolean }> { return { deleted: true }; } } ```