backend/src/health/controllers/health.controller.ts

import { Controller, Get } from '@nestjs/common';
import { ApiTags } from '@nestjs/swagger';
import {
  HealthCheck,
  HealthCheckService,
  TypeOrmHealthIndicator,
  DiskHealthIndicator,
  MemoryHealthIndicator,
  HttpHealthIndicator,
} from '@nestjs/terminus';

@ApiTags('Health Module')
@Controller('health')
export class HealthController {
  constructor(
    private health: HealthCheckService,
    private db: TypeOrmHealthIndicator,
    private memory: MemoryHealthIndicator,
    private disk: DiskHealthIndicator,
    private http: HttpHealthIndicator,
  ) {}

  @Get()
  @HealthCheck()
  check() {
    return this.health.check([
      () => this.db.pingCheck('database'),
      () =>
        this.disk.checkStorage('disk', {
          thresholdPercent: 0.9,
          path: '/',
        }),
      () => this.memory.checkHeap('memory_heap', 300 * 1024 * 1024),
      () => this.http.pingCheck('tuya', process.env.TUYA_EU_URL),
    ]);
  }
}