Skip to content

Updated Code for instantiating single PrismaClient instance #4478

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
sabinadams merged 3 commits into from
Feb 3, 2023
Merged

Updated Code for instantiating single PrismaClient instance #4478

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
04dbec1
Updated Code for instantiating single PrismaClient instance
nurul3101 Feb 2, 2023
a5c1bd9
Removed Logging
nurul3101 Feb 3, 2023
e313d33
Update index.mdx
nurul3101 Feb 3, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 5 additions & 12 deletions ...300-guides/100-performance-and-optimization/150-connection-management/index.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -89,25 +89,18 @@ As a workaround, you can store `PrismaClient` as a global variable in developmen
```ts file=client.ts
import { PrismaClient } from '@prisma/client'

// add prisma to the NodeJS global type
interface CustomNodeJsGlobal extends NodeJS.Global {
prisma: PrismaClient
}

// Prevent multiple instances of Prisma Client in development
declare const global: CustomNodeJsGlobal

const prisma = global.prisma || new PrismaClient()
const globalForPrisma = global as unknown as { prisma: PrismaClient }

if (process.env.NODE_ENV === 'development') global.prisma = prisma
export const prisma =
globalForPrisma.prisma || new PrismaClient()

export default prisma
if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma
```

The way that you import and use the client does not change:

```ts file=app.ts
import prisma from './client'
import { prisma } from './client'

async function main() {
const allUsers = await prisma.user.findMany()
Expand Down