refactor health module

apps/server/src/integrations/health/redis.health.ts

@@ -0,0 +1,41 @@
+import {
+  HealthCheckError,
+  HealthIndicator,
+  HealthIndicatorResult,
+} from '@nestjs/terminus';
+import { Injectable, Logger } from '@nestjs/common';
+import { EnvironmentService } from '../environment/environment.service';
+import { Redis } from 'ioredis';
+
+@Injectable()
+export class RedisHealthIndicator extends HealthIndicator {
+  private readonly logger = new Logger(RedisHealthIndicator.name);
+
+  constructor(private environmentService: EnvironmentService) {
+    super();
+  }
+
+  async pingCheck(key: string): Promise<HealthIndicatorResult> {
+    let isHealthy = false;
+
+    try {
+      const redis = new Redis(this.environmentService.getRedisUrl(), {
+        maxRetriesPerRequest: 15,
+      });
+
+      await redis.ping();
+      isHealthy = true;
+    } catch (e) {
+      this.logger.error(e);
+    }
+
+    if (isHealthy) {
+      return this.getStatus(key, isHealthy);
+    } else {
+      throw new HealthCheckError(
+        `${key} is not available`,
+        this.getStatus(key, isHealthy),
+      );
+    }
+  }
+}