root
42 lines
1.4 KiB
TypeScript
42 lines
1.4 KiB
TypeScript
import { Inject, Injectable, type OnModuleDestroy } from "@nestjs/common";
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import { createClient, type RedisClientType } from "redis";
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import { PrismaService } from "../database/prisma.service.js";
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import { DomainException } from "../common/domain.exception.js";
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import { ErrorCode } from "@drift/contracts";
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import { HttpStatus } from "@nestjs/common";
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@Injectable()
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export class HealthService implements OnModuleDestroy {
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private readonly redis: RedisClientType;
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get redisClient(): RedisClientType {
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return this.redis;
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}
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constructor(@Inject(PrismaService) private readonly prisma: PrismaService) {
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this.redis = createClient({
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url: process.env.REDIS_URL ?? "redis://127.0.0.1:6379",
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socket: { connectTimeout: 500, reconnectStrategy: false },
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});
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this.redis.on("error", () => undefined);
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}
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async check(): Promise<{ status: "ok"; postgres: "up"; redis: "up" }> {
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try {
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if (!this.redis.isOpen) await this.redis.connect();
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await Promise.all([this.prisma.$queryRaw`SELECT 1`, this.redis.ping()]);
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return { status: "ok", postgres: "up", redis: "up" };
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} catch {
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throw new DomainException(
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ErrorCode.SERVICE_UNAVAILABLE,
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"Dependencies unavailable",
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HttpStatus.SERVICE_UNAVAILABLE,
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);
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}
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}
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async onModuleDestroy(): Promise<void> {
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if (this.redis.isOpen) await this.redis.quit();
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}
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}
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