> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zopio.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Switch to Lemon Squeezy

> How to change the default payment processor to Lemon Squeezy.

[Lemon Squeezy](https://www.lemonsqueezy.com) is an all-in-one platform for running your SaaS business. It handles payments, subscriptions, global tax compliance, fraud prevention, multi-currency, and more. Here's how to switch the default payment processor from Stripe to Lemon Squeezy.

## 1. Swap out the required dependencies

First, uninstall the existing dependencies from the Payments package...

```sh title="Terminal" theme={"system"}
pnpm remove stripe --filter @repo/payments
```

... and install the new dependencies...

```sh title="Terminal" theme={"system"}
pnpm add @lemonsqueezy/lemonsqueezy.js --filter @repo/payments
```

## 2. Update the environment variables

Next, update the environment variables across the project, for example:

```js title="apps/app/.env" theme={"system"}
NEXT_PUBLIC_LEMON_SQUEEZY_API_KEY=""
```

Additionally, replace all instances of `STRIPE_SECRET_KEY` with `LEMON_SQUEEZY_API_KEY` in the `packages/env/index.ts` file.

## 3. Update the payments client

Initialize the payments client in the `packages/payments/index.ts` file with the new API key. Then, export the `lemonSqueezySetup` function from the file.

```ts title="packages/payments/index.ts" theme={"system"}
import { env } from '@repo/env';
import { lemonSqueezySetup } from '@lemonsqueezy/lemonsqueezy.js';

lemonSqueezySetup({
  apiKey,
  onError: (error) => console.error("Error!", error),
});

export * from '@lemonsqueezy/lemonsqueezy.js';
```

## 4. Update the payments webhook handler

Update the webhook handler for Lemon Squeezy:

```ts title="apps/api/app/webhooks/payments/route.ts" theme={"system"}
import { NextResponse } from 'next/server';

export const POST = async (request: Request) => {
  return NextResponse.json({ message: 'Hello World' });
};
```

There's quite a lot you can do with Lemon Squeezy, so check out the following resources for more information:

* [Webhooks Overview](https://docs.lemonsqueezy.com/guides/developer-guide/webhooks)
* [Signing Requests](https://docs.lemonsqueezy.com/help/webhooks/signing-requests)

## 5. Use Lemon Squeezy in your app

Finally, use the new payments client in your app.

```tsx title="apps/app/app/(authenticated)/page.tsx" theme={"system"}
import { getStore } from '@repo/payments';

const Page = async () => {
  const store = await getStore(123456);

  return (
    <pre>{JSON.stringify(store, null, 2)}</pre>
  );
};
```