feat: add kysely for raw type-safe SQL queries

packages/prisma/index.ts

@@ -1,5 +1,8 @@
 import { PrismaClient } from '@prisma/client';
+import { Kysely, PostgresAdapter, PostgresIntrospector, PostgresQueryCompiler } from 'kysely';
+import kyselyExtension from 'prisma-extension-kysely';
 
+import type { DB } from './generated/types.js';
 import { getDatabaseUrl } from './helper';
 
 declare global {
@@ -12,10 +15,24 @@ if (!globalThis.prisma) {
   globalThis.prisma = new PrismaClient({ datasourceUrl: getDatabaseUrl() });
 }
 
-export const prisma =
+const _prisma =
   globalThis.prisma ||
   new PrismaClient({
     datasourceUrl: getDatabaseUrl(),
   });
 
+export const prisma = _prisma.$extends(
+  kyselyExtension({
+    kysely: (driver) =>
+      new Kysely<DB>({
+        dialect: {
+          createAdapter: () => new PostgresAdapter(),
+          createDriver: () => driver,
+          createIntrospector: (db) => new PostgresIntrospector(db),
+          createQueryCompiler: () => new PostgresQueryCompiler(),
+        },
+      }),
+  }),
+);
+
 export const getPrismaClient = () => prisma;

packages/prisma/package.json

@@ -20,12 +20,15 @@
   },
   "dependencies": {
     "@prisma/client": "5.4.2",
+    "kysely": "^0.27.3",
     "prisma": "5.4.2",
+    "prisma-extension-kysely": "^2.1.0",
     "ts-pattern": "^5.0.6"
   },
   "devDependencies": {
     "dotenv": "^16.3.1",
     "dotenv-cli": "^7.3.0",
+    "prisma-kysely": "^1.8.0",
     "ts-node": "^10.9.1",
     "typescript": "5.2.2"
   }

packages/prisma/schema.prisma

@@ -1,5 +1,5 @@
-generator client {
+generator kysely {
-  provider = "prisma-client-js"
+  provider = "prisma-kysely"
 }
 
 datasource db {