Use CUID2 with Prisma

README.md

This will automatically use CUID2 for all id fields when creating elements in Prisma.

You'll need to add the following libraries to make this work

npm install --save @paralleldrive/cuid2 immer
yarn add @paralleldrive/cuid2 immer
pnpm add @paralleldrive/cuid2 immer

Immer is use to ensure that there are no side-effects when modifying the arguments.

cuid2-extension.ts

import { createId } from "@paralleldrive/cuid2";
import { Prisma } from "@prisma/client";
import { produce } from "immer";

const cuid2Extension = Prisma.defineExtension({
  name: "cuid2",
  query: {
    $allModels: {
      create({ query, args }) {
        const argsWithNewId = produce(args, (draft) => {
          if (!draft.data.id) {
            draft.data.id = createId();
          }
        });

        return query(argsWithNewId);
      },
      createMany({ query, args }) {
        const argsWithNewIds = produce(args, (draft) => {
          if (Array.isArray(draft.data)) {
            draft.data = draft.data.map((item) => {
              if (!item.id) {
                item.id = createId();
              }

              return item;
            }) as typeof draft.data;
          } else {
            if (draft.data.id) {
              draft.data.id = createId();
            }
          }
        });

        return query(argsWithNewIds);
      },
    },
  },
});

export default cuid2Extension;

prisma-client.ts

import { PrismaClient } from "@prisma/client";

import cuid2Extension from "./cuid2-extension";

const prismaClient = new PrismaClient().$extends(cuid2Extension);

export default prismaClient;

Thank you for this. Great work!