prisma client for nextjs

prisma.ts

 //  https://github.com/prisma/prisma/discussions/10037
 // and why it does matter: https://www.prisma.io/docs/concepts/components/prisma-client/working-with-prismaclient/instantiate-prisma-client#the-number-of-prismaclient-instances-matters
import { PrismaClient } from "@prisma/client";

let prisma: PrismaClient;

if (process.env.NODE_ENV === "production") {
  prisma = new PrismaClient();
} else {
  let globalWithPrisma = global as typeof globalThis & {
    prisma: PrismaClient;
  };
  if (!globalWithPrisma.prisma) {
    globalWithPrisma.prisma = new PrismaClient();
  }
  prisma = globalWithPrisma.prisma;
  
  // it seems like they change the code again
  // https://www.prisma.io/docs/guides/database/troubleshooting-orm/help-articles/nextjs-prisma-client-dev-practices
}

export default prisma;