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Whop apps are embedded into the site using iFrames. This SDK provides a type-safe way for you to communicate with the Whop application using a request/response style API powered by window.postMessage. Since this package relies on window.postMessage, it only works in Client Components.

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Relevant Packages

  • @whop/iframe - The main package for the iframe SDK.
  • @whop/react - A React wrapper for Whop Apps including helpers for the iframe SDK.

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Setup

The main function exported from the @whop/iframe package is the createSdk function. When called, this function sets up a listener for messages from the main Whop site, using window.on('message', ...). It is also exposed through the WhopIframeSdkProvider component from @whop/react.

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React

If you’re using React, it is recommended to use the WhopIframeSdkProvider component from @whop/react to provide the iframe SDK to all child components. 
// app/layout.tsx
import { WhopIframeSdkProvider } from "@whop/react";

export default function RootLayout({
  children,
}: {
  children: React.ReactNode,
}) {
  return (
    <html lang="en">
      <body>
        <WhopIframeSdkProvider>{children}</WhopIframeSdkProvider>
      </body>
    </html>
  );
}

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Other Frameworks

For other frameworks, you can use the createSdk function from @whop/iframe to create an instance of the iframe SDK. 
// lib/iframe-sdk.ts
import { createSdk } from "@whop/iframe";

export const iframeSdk = createSdk({
  appId: process.env.NEXT_PUBLIC_WHOP_APP_ID,
});
We have now setup the SDK and iFrame.