Use `OnApplicationShutdown` for cleanup that must happen when the application is shutting down, such as closing clients, consumers, or timers. Enable signal handling in bootstrap: ```ts @Injectable() export class QueueLifecycle implements OnApplicationShutdown { async onApplicationShutdown(signal?: string) { await this.consumer.close(); this.logger.log(`Closed on ${signal ?? 'application'} shutdown`); } } app.enableShutdownHooks(); ``` Use `OnModuleInit` for startup connection/setup work. Kee...
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Use `OnApplicationShutdown` for cleanup that must happen when the application is shutting down, such as closing clients, consumers, or timers. Enable signal handling in bootstrap:
```ts
@Injectable()
export class QueueLifecycle implements OnApplicationShutdown {
async onApplicationShutdown(signal?: string) {
await this.consumer.close();
this.logger.log(`Closed on ${signal ?? 'application'} shutdown`);
}
}
app.enableShutdownHooks();
```
Use `OnModuleInit` for startup connection/setup work. Keep cleanup idempotent and bounded so Kubernetes termination can complete; do not put business logic in the lifecycle hook.
