import { PrismaClient } from "@prisma/client";
const prismaClientSingleton = () => {
  return new PrismaClient();
};

declare global {
  var prisma: undefined | ReturnType<typeof prismaClientSingleton>;
}

let prisma = globalThis.prisma || prismaClientSingleton();
export default prisma;
if (process.env.NODE_ENV !== "production") globalThis.prisma = prisma;

This code works on my development environment. I always import prisma everywhere I use it.