pstream-backend/server/utils/prisma.ts

import { Pool } from 'pg';
import { PrismaPg } from '@prisma/adapter-pg';
import { PrismaClient } from '../../generated/client';

const globalForPrisma = globalThis as unknown as {
  prisma: PrismaClient | undefined;
  pool: Pool | undefined;
};

const pool =
  globalForPrisma.pool ||
  new Pool({
    connectionString: process.env.DATABASE_URL,
    max: Math.max(1, parseInt(process.env.DB_POOL_MAX, 10) || 30),
    connectionTimeoutMillis: 10000,
    idleTimeoutMillis: 300000,
  });

const adapter = new PrismaPg(pool);

export const prisma = globalForPrisma.prisma || new PrismaClient({ adapter });

if (process.env.NODE_ENV !== 'production') {
  globalForPrisma.prisma = prisma;
  globalForPrisma.pool = pool;
}