index.ts

import { neonConfig, Pool } from '@neondatabase/serverless'
import { PrismaNeon } from '@prisma/adapter-neon'
import { PrismaClient } from '@prisma/client'

neonConfig.poolQueryViaFetch = true

const pool = new Pool({ connectionString: process.env.DATABASE_URL })
const adapter = new PrismaNeon(pool)

const createPrismaClient = () =>
  new PrismaClient({
    adapter,
    log:
      process.env.NODE_ENV === 'development'
        ? ['query', 'error', 'warn']
        : ['error'],
  })

const globalForPrisma = globalThis as unknown as {
  prisma: ReturnType<typeof createPrismaClient> | undefined
}

export const db = globalForPrisma.prisma ?? createPrismaClient()
if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = db

export type * from '@prisma/client'