Mongoose (MongoDB) → Prisma + MongoDB

npm install prisma @prisma/client && npx prisma init --datasource-provider mongodb && npm uninstall mongoose

Translate Mongoose schemas to Prisma models. Mongoose ObjectId → @id @map("_id") @db.ObjectId in Prisma.

model User {
  id    String @id @default(auto()) @map("_id") @db.ObjectId
  email String @unique
  name  String?
}

npx prisma db push

Model.find({}) → prisma.model.findMany({}). Model.findById(id) → prisma.model.findUnique({ where: { id } }). Save → create/update/upsert.

Mongoose pre/post hooks → Prisma middleware or $extends for cross-cutting logic.

const prisma = new PrismaClient().$extends({ query: { user: { create: async ({ args, query }) => { /* hook */ return query(args) } } } })

npx prisma generate