NextAuth.js v5 + Prisma + PostgreSQL: Production Setup Guide

NextAuth.js v5 + Prisma + PostgreSQL: Production Setup Guide Getting NextAuth.js, Prisma, and PostgreSQL to work together in production has more gotchas than the documentation suggests. This is the setup that actually works — with the session strategy, database schema, and environment configuration that production requires. Stack Next.js 14 (App Router) NextAuth.js v5 (Auth.js) Prisma ORM PostgreSQL (Neon, Supabase, or Railway) 1. Install Dependencies npm install next-auth@beta @auth/prisma-adapter prisma @prisma/client npx prisma init 2. Database Schema prisma/schema.prisma : generator client { provider = "prisma-client-js" } datasource db { provider = "postgresql" url = env("DATABASE_URL") } model User { id String @id @default(cuid()) name String? email String @unique emailVerified DateTime? image String? accounts Account[] sessions Session[] // Your app-specific fields hasPaid Boolean @default(false) stripeCustomerId String? @unique createdAt DateTime @default(now()) updatedAt DateT