feat(health): add health checks to server api

server/package.json

@@ -20,6 +20,7 @@
     "@nestjs/platform-express": "^8.4.0",
     "@nestjs/schedule": "^1.0.2",
     "@nestjs/serve-static": "^2.2.2",
+    "@nestjs/terminus": "^8.0.4",
     "@nestjs/typeorm": "^8.0.3",
     "@sendgrid/mail": "^7.6.1",
     "@types/passport": "^1.0.7",

server/src/app.module.ts

@@ -9,6 +9,7 @@ import { ConfigModule } from './config/config.module';
 import { DatabaseModule } from './database/database.module';
 import { HttpExceptionFilter } from './filters/http-exception.filter';
 import { FontsModule } from './fonts/fonts.module';
+import { HealthModule } from './health/health.module';
 import { IntegrationsModule } from './integrations/integrations.module';
 import { MailModule } from './mail/mail.module';
 import { PrinterModule } from './printer/printer.module';
@@ -32,6 +33,7 @@ import { UsersModule } from './users/users.module';
     FontsModule,
     IntegrationsModule,
     PrinterModule,
+    HealthModule,
   ],
   providers: [
     {

server/src/health/health.controller.ts

@@ -0,0 +1,21 @@
+import { Controller, Get } from '@nestjs/common';
+import { HealthCheck, HealthCheckService, HttpHealthIndicator, TypeOrmHealthIndicator } from '@nestjs/terminus';
+
+@Controller('health')
+export class HealthController {
+  constructor(
+    private health: HealthCheckService,
+    private db: TypeOrmHealthIndicator,
+    private http: HttpHealthIndicator
+  ) {}
+
+  @Get()
+  @HealthCheck()
+  check() {
+    return this.health.check([
+      () => this.db.pingCheck('database'),
+      () => this.http.pingCheck('app', 'https://rxresu.me'),
+      () => this.http.pingCheck('docs', 'https://beta.rxresu.me'),
+    ]);
+  }
+}

server/src/health/health.module.ts

@@ -0,0 +1,11 @@
+import { HttpModule } from '@nestjs/axios';
+import { Module } from '@nestjs/common';
+import { TerminusModule } from '@nestjs/terminus';
+
+import { HealthController } from './health.controller';
+
+@Module({
+  imports: [HttpModule, TerminusModule],
+  controllers: [HealthController],
+})
+export class HealthModule {}