Websocket nestjs health check indicator

websocket.health.ts

import { Injectable } from '@nestjs/common'
import { HttpService } from '@nestjs/axios'
import {
	HealthIndicator,
	HealthIndicatorResult,
	HealthCheckError
} from '@nestjs/terminus'
import { firstValueFrom } from 'rxjs'

@Injectable()
export class WebSocketHealthIndicator extends HealthIndicator {
	constructor(private httpService: HttpService) {
		super()
	}

	async checkHealth(key: any, options: any): Promise<HealthIndicatorResult> {
		let isHealthy = false
		try {
			const result: any = await firstValueFrom(
				this.httpService.get(
					`http://127.0.0.1:${process.env.SOCKET_PORT}/socket.io/?EIO=4&transport=polling`
				)
			)
			if (result.status == 200) {
				isHealthy = true
			}
		} catch {}
        
		if (isHealthy) return this.getStatus(key, isHealthy)

		if (options.required) {
			throw new HealthCheckError(
				'WebSocket Server',
				this.getStatus(key, isHealthy, { message: 'Web Server not working' })
			)
		}
		return this.getStatus(key, isHealthy)
	}
}