jws-backend/src/db.ts

import { PrismaClient } from "@prisma/client";
import { Kysely, PostgresAdapter, PostgresIntrospector, PostgresQueryCompiler } from "kysely";
import kyselyExtension from "prisma-extension-kysely";
import type { DB } from "./generated/kysely/types";

const prisma = new PrismaClient({
  errorFormat: process.env.NODE_ENV === "production" ? "minimal" : "pretty",
}).$extends(
  kyselyExtension({
    kysely: (driver) =>
      new Kysely<DB>({
        dialect: {
          createDriver: () => driver,
          createAdapter: () => new PostgresAdapter(),
          createIntrospector: (db: Kysely<DB>) => new PostgresIntrospector(db),
          createQueryCompiler: () => new PostgresQueryCompiler(),
        },
        plugins: [],
      }),
  }),
);

export default prisma;