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add global connection to not reinstantiate on every import

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Vikhyath Mondreti
2025-06-26 13:43:25 -07:00
parent 70899852a3
commit 7b50eccc89
1 changed files with 16 additions and 9 deletions
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25
apps/sim/db/index.ts
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@@ -1,17 +1,24 @@
import { drizzle } from 'drizzle-orm/postgres-js'
import { PostgresJsDatabase, drizzle } from 'drizzle-orm/postgres-js'
import postgres from 'postgres'
import { env } from '@/lib/env'
import * as schema from './schema'
// In production, use the Vercel-generated POSTGRES_URL
// In development, use the direct DATABASE_URL
const connectionString = env.POSTGRES_URL ?? env.DATABASE_URL
// Disable prefetch as it is not supported for "Transaction" pool mode
const client = postgres(connectionString, {
prepare: false,
idle_timeout: 30, // Keep connections alive for 30 seconds when idle
connect_timeout: 30, // Timeout after 30 seconds when connecting
})
const drizzleClient = drizzle(
postgres(connectionString, {
prepare: false, // Disable prefetch as it is not supported for "Transaction" pool mode
idle_timeout: 30, // Keep connections alive for 30 seconds when idle
connect_timeout: 30, // Timeout after 30 seconds when connecting
}),
{ schema },
)
// Export the database client (never null)
export const db = drizzle(client)
declare global {
var database: PostgresJsDatabase<typeof schema> | undefined
}
export const db = global.database || drizzleClient
if (process.env.NODE_ENV !== 'production') global.database = db