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wale96

•Created by wale96 on 5/19/2025 in #help

Better auth issue with prisma adapter using with Nuxt

I have an issue when building for production (works fine in dev) with some Es module saying dirname is not defined in ES module scope I have "type:module" in my package.json. can someone help me with this issue? I have my better-auth instance in lib/auth like this below

import { betterAuth } from "better-auth";
import { prismaAdapter } from "better-auth/adapters/prisma";

import { sendEmail, sendPasswordResetEmail } from "./email";
import prisma from "./prisma";

export const auth = betterAuth({
    database: prismaAdapter(prisma, {
        provider: "postgresql",
    }),
    emailAndPassword: {
        enabled: true,
        sendResetPassword: async ({user, url, token}, request) => {
            try {
                await sendPasswordResetEmail(user.email, url);
            } catch (error) {
                throw new Error("Failed to send password reset email");
            }
        },
    },
});

and my prisma.ts in lib/prisma.ts

import { PrismaClient } from '../generated/prisma'
import { withAccelerate } from '@prisma/extension-accelerate'

const globalForPrisma = global as unknown as { 
    prisma: PrismaClient
}

const prisma = globalForPrisma.prisma || new PrismaClient().$extends(withAccelerate())

if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma

export default prisma

and my api route in server/api/[...all.ts]

import { auth } from "~/lib/auth";

export default defineEventHandler((event) => {
    return auth.handler(toWebRequest(event));
});

and the error is `[request error] [unhandled] [POST] https://example.com/api/auth/sign-in/email ReferenceError: dirname is not defined in ES module scope at file:///var/task/chunks/routes/api/...all.mjs:873:16 ... 8 lines matching cause stack trace ... at async file:///var/task/chunks/build/server.mjs:1099:114 { cause: ReferenceError: __dirname is not defined in ES module scope
} `

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