Merge pull request #2797 from aqrln/prisma-exit-hooks

fix: remove outdated section about shutdown hooks with prisma

Author: kamilmysliwiec

content/recipes/prisma.md

@@ -248,24 +248,18 @@ When setting up your NestJS application, you'll want to abstract away the Prisma
 Inside the `src` directory, create a new file called `prisma.service.ts` and add the following code to it:
 
 ```typescript
-import { INestApplication, Injectable, OnModuleInit } from '@nestjs/common';
+import { Injectable, OnModuleInit } from '@nestjs/common';
 import { PrismaClient } from '@prisma/client';
 
 @Injectable()
 export class PrismaService extends PrismaClient implements OnModuleInit {
   async onModuleInit() {
     await this.$connect();
   }
-
-  async enableShutdownHooks(app: INestApplication) {
-    this.$on('beforeExit', async () => {
-      await app.close();
-    });
-  }
 }
 ```
 
-> info **Note** The `onModuleInit` is optional — if you leave it out, Prisma will connect lazily on its first call to the database. We don't bother with `onModuleDestroy`, since Prisma has its own shutdown hooks where it will destroy the connection. For more info on `enableShutdownHooks`, please see [Issues with `enableShutdownHooks`](recipes/prisma#issues-with-enableshutdownhooks)
+> info **Note** The `onModuleInit` is optional — if you leave it out, Prisma will connect lazily on its first call to the database.
 
 Next, you can write services that you can use to make database calls for the `User` and `Post` models from your Prisma schema.
 
@@ -518,26 +512,6 @@ This controller implements the following routes:
 
 - `/post/:id`: Delete a post by its `id`
 
-#### Issues with `enableShutdownHooks`
-
-Prisma interferes with NestJS `enableShutdownHooks`. Prisma listens for shutdown signals and will call `process.exit()` before your application shutdown hooks fire. To deal with this, you would need to add a listener for Prisma `beforeExit` event.
-
-```typescript
-// main.ts
-...
-import { PrismaService } from './services/prisma/prisma.service';
-...
-async function bootstrap() {
-  ...
-  const prismaService = app.get(PrismaService);
-  await prismaService.enableShutdownHooks(app)
-  ...
-}
-bootstrap()
-```
-
-You can [read more](https://github.com/prisma/prisma/issues/2917#issuecomment-708340112) about Prisma handling of shutdown signal, and `beforeExit` event.
-
 #### Summary
 
 In this recipe, you learned how to use Prisma along with NestJS to implement a REST API. The controller that implements the routes of the API is calling a `PrismaService` which in turn uses Prisma Client to send queries to a database to fulfill the data needs of incoming requests.