fix: create single instance for prisma client

oae · Oct 17, 2022 · 879250c · 879250c
1 parent 7aac2ef
commit 879250c
Showing 1 changed file with 13 additions and 3 deletions.
diff --git a/src/server/db/client.ts b/src/server/db/client.ts
@@ -1,5 +1,15 @@
 import { PrismaClient } from '@prisma/client';
 
-export const prisma = new PrismaClient({
-  log: process.env.NODE_ENV === 'development' ? ['query', 'error', 'warn'] : ['error'],
-});
+declare global {
+  // allow global `var` declarations
+  // eslint-disable-next-line no-var, vars-on-top
+  var prisma: PrismaClient | undefined;
+}
+
+export const prisma =
+  global.prisma ||
+  new PrismaClient({
+    log: process.env.NODE_ENV === 'development' ? ['query', 'error', 'warn'] : ['error'],
+  });
+
+if (process.env.NODE_ENV !== 'production') global.prisma = prisma;