Registry / database / prisma-effect-kysely

prisma-effect-kysely

library5.10.0jsnpmunverified

A Prisma generator (v5.10.0, maintained) that produces Effect Schema types from Prisma schema, designed for use with the Kysely query builder. Bridges Prisma's modeling with Effect-TS's type-safe schema validation, enabling compile-time type safety across database queries and effects. Updates roughly monthly; alternative to manual type generation or Zod-based approaches. Requires Node >=20, Bun >=1.0, Effect ^3.19.14, Kysely ^0.28.9.

database devops

npm install prisma-effect-kysely

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · PRISMA-EFFECT-KYSE

prisma-effect-kysely

databasejavascriptv5.10.0

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

PrismaEffectKyselyGenerator

✓ import { PrismaEffectKyselyGenerator } from 'prisma-effect-kysely'

✗ const PrismaEffectKyselyGenerator = require('prisma-effect-kysely')

This package is ESM-only; CommonJS require will fail.

GeneratedSchema

✓ import { GeneratedSchema } from './generated/prisma-schema'

✗ import { GeneratedSchema } from 'prisma-effect-kysely'

The type is generated in your project, not exported from the package.

Effect

✓ import { Effect } from 'effect'

✗ import { Effect } from 'prisma-effect-kysely'

Effect library is a peer dependency, not re-exported by this package.

Shows setup: add generator to Prisma schema, run generate, then use generated Effect Schema types.

// Add generator to Prisma schema // schema.prisma: // generator effect { // provider = "prisma-effect-kysely" // output = "../src/generated" // } // After running `npx prisma generate`, use generated types: import { UserSchema } from './generated/prisma-schema'; import { Effect } from 'effect'; const program = Effect.sync(() => { const user = UserSchema.decode({ id: 1, name: 'Alice' }); return user; }); Effect.runPromise(program).then(console.log);

Debug

Known issues

breakingRequires Node >=20 and Bun >=1.0. Older versions won't work.

fix

Upgrade Node to >=20 or Bun to >=1.0.

affects: >=5.0

breakingPeer dependencies effect and kysely must be installed separately. Versions must satisfy ^3.19.14 and ^0.28.9 respectively.

fix

Run `npm install effect@^3.19.14 kysely@^0.28.9`.

affects: >=5.0

gotchaGenerated output file location defaults to `node_modules/.prisma/client` unless `output` is specified in generator config.

fix

Set `output = "../src/generated"` in the generator block to control location.

affects: >=5.0

gotchaTypeScript `strict` mode is required for full type safety.

fix

Enable `"strict": true` in tsconfig.json.

affects: >=5.0

Errors

Common errors & fixes

Error: Cannot find module 'prisma-effect-kysely' require() of ES Module

Package is ESM-only; CommonJS require is unsupported.

fix

Use import syntax and ensure your project is ESM ("type": "module" in package.json).

Error: Cannot find module 'effect'

Peer dependency not installed.

fix

Run `npm install effect@^3.19.14`.

Error: Generator 'effect' not found or failed to load.

Missing or invalid generator configuration in Prisma schema.

fix

Ensure `provider = "prisma-effect-kysely"` is correct and the package is installed.

Upgrade

Version history

5.10.0latest on npm

Audit

Dependencies

effectrequiredPeer dependency for Effect Schema and related runtime

kyselyrequiredPeer dependency for Kysely query builder types

Agent activity

11 hits · last 30 days

node

Resources

githubhttps://github.com/samuelho-dev/prisma-effect-kysely ↗

packageprisma-effect-kysely ↗

homepagehttps://github.com/samuelho-dev/prisma-effect-kysely#readme ↗