February 2025. Database on Sequelize. Works, but:

// Sequelize
const user = await User.findOne({ where: { email } })
user.nmae  // typo, TypeScript doesn't see it

Models described in JavaScript. Types generate poorly. Migrations manually.

Why Prisma

• schema.prisma - one file, entire database
• Types generate automatically
• Migrations from schema
• TypeScript out of the box

// Prisma
const user = await prisma.user.findUnique({ where: { email } })
user.nmae  // compile error

Migration

Day of work. Wrote schema.prisma based on existing tables. Generated client. Replaced Sequelize calls with Prisma. Tests passed.

Longest part - relations between tables. In Sequelize they're scattered across models. In Prisma - one place in the schema.

Result

Less code. Types everywhere. Migrations automatic. IDE suggests fields and relations.

One downside - Prisma Client is heavier. But for a server application that's not a problem.