first (part 3: src directory)

src/modules/health/health.controller.ts

@@ -0,0 +1,44 @@
+import { Controller, Get } from '@nestjs/common';
+import { ApiTags, ApiOperation } from '@nestjs/swagger';
+import {
+  HealthCheck,
+  HealthCheckService,
+  PrismaHealthIndicator,
+} from '@nestjs/terminus';
+import { Public } from '../../common/decorators';
+import { PrismaService } from '../../database/prisma.service';
+
+@ApiTags('Health')
+@Controller('health')
+export class HealthController {
+  constructor(
+    private health: HealthCheckService,
+    private prismaHealth: PrismaHealthIndicator,
+    private prisma: PrismaService,
+  ) {}
+
+  @Get()
+  @Public()
+  @HealthCheck()
+  @ApiOperation({ summary: 'Basic health check' })
+  check() {
+    return this.health.check([]);
+  }
+
+  @Get('ready')
+  @Public()
+  @HealthCheck()
+  @ApiOperation({ summary: 'Readiness check (includes database)' })
+  readiness() {
+    return this.health.check([
+      () => this.prismaHealth.pingCheck('database', this.prisma),
+    ]);
+  }
+
+  @Get('live')
+  @Public()
+  @ApiOperation({ summary: 'Liveness check' })
+  liveness() {
+    return { status: 'ok', timestamp: new Date().toISOString() };
+  }
+}