PrismaClient Lifecycle Management

Teaches proper PrismaClient lifecycle patterns for connection cleanup and logging following Prisma 6 best practices.

Activates when: Setting up shutdown handlers (SIGINT, SIGTERM), configuring PrismaClient logging, implementing connection cleanup in servers/serverless/tests, writing test teardown logic, or user mentions "shutdown", "disconnect", "cleanup", "logging", "graceful exit".

Why it matters: Proper lifecycle management ensures clean connection closure on shutdown, prevents hanging connections from exhausting database resources, provides development/production visibility through logging, and prevents connection leaks in tests.

Implementation Patterns

Long-Running Servers (Express, Fastify, Custom HTTP)

import express from 'express'
import { prisma } from './lib/prisma'

const app = express()