How to Convert UI Video to a Production Remix App With Session Management

TL;DR: Replay revolutionizes UI development by converting video recordings into production-ready Remix applications with integrated session management, eliminating manual coding and design interpretation.

Stop building UI from scratch. The future is here, and it's called behavior-driven reconstruction. We've been conditioned to think that screenshots or design files are the starting point for UI development. That's wrong. The real source of truth is user behavior - what they actually do.

Replay is the first video-to-code engine that understands user intent and translates it into fully functional UI code. Forget pixel-perfect mockups; Replay captures the flow of the user experience and generates code that reflects it. This article will guide you through using Replay to convert a UI video into a production-ready Remix app with robust session management.

Why Video-to-Code is the Future#

For years, developers have struggled with inefficient UI development workflows. Translating static designs into dynamic code is a tedious, error-prone process. Screenshot-to-code tools offer a marginal improvement, but they only capture the visual aspect, missing the crucial behavioral context.

Replay changes the game by analyzing video recordings of user interactions. This allows us to:

• •Understand user flows: Replay identifies navigation patterns, button clicks, form submissions, and other user actions.
• •Generate functional code: The generated code is not just a static mockup; it's a working application with interactive elements.
• •Accelerate development: Replay significantly reduces the time and effort required to build UI, allowing developers to focus on core logic and features.

Here's how Replay stacks up against traditional and screenshot-based approaches:

Building a Remix App from a UI Video with Replay#

Let's walk through a practical example: converting a video of a user interacting with an e-commerce website into a production-ready Remix application with session management.

Step 1: Recording the UI Video#

First, record a video of yourself (or a user) interacting with the e-commerce website. Focus on capturing the key user flows, such as browsing products, adding items to the cart, and completing the checkout process.

💡 Pro Tip: Use a screen recording tool that captures mouse clicks and keyboard input for better accuracy.

Step 2: Uploading the Video to Replay#

Upload the recorded video to Replay. Replay's AI engine will analyze the video, identify UI elements, and understand user interactions.

📝 Note: Replay supports various video formats, including MP4, MOV, and AVI.

Step 3: Configuring the Remix Project#

While Replay processes the video, set up your Remix project. If you don't have one already, create a new Remix app:

bash
npx create-remix@latest my-ecommerce-app
cd my-ecommerce-app

Step 4: Integrating Supabase for Session Management#

Replay seamlessly integrates with Supabase for robust session management. Create a Supabase project and configure your Remix app to use it. Install the Supabase client:

bash
npm install @supabase/supabase-js

Then, create a

file in your directory:

typescript
// app/supabase.server.ts
import { createClient } from '@supabase/supabase-js';

const supabaseUrl = process.env.SUPABASE_URL!;
const supabaseKey = process.env.SUPABASE_ANON_KEY!;

const supabase = createClient(supabaseUrl, supabaseKey, {
  auth: {
    persistSession: false,
    autoRefreshToken: false
  }
});

export { supabase };

⚠️ Warning: Never expose your Supabase

text

SUPABASE_SERVICE_ROLE_KEY

in the client-side code. Use the

text

SUPABASE_ANON_KEY

for client-side operations and

text

SUPABASE_SERVICE_ROLE_KEY

only in your server-side code.

Set the

and environment variables in your file:

text
SUPABASE_URL=YOUR_SUPABASE_URL
SUPABASE_ANON_KEY=YOUR_SUPABASE_ANON_KEY

Step 5: Generating the Remix Code with Replay#

Once Replay finishes processing the video, it will generate a Remix project structure with:

• •Route files (
  text

  .tsx
  files in the
  text

  app/routes
  directory) corresponding to the different pages in the video.
• •Components (
  text

  .tsx
  files in the
  text

  app/components
  directory) for reusable UI elements.
• •Server-side actions and loaders to handle data fetching and form submissions.
• •Integrated Supabase session management logic.

✅ Replay Benefit: Replay automatically injects styles into your components, saving you hours of manual styling.

Step 6: Implementing Session Management#

Replay generates code to handle user authentication and session management using Supabase. Here's an example of how to implement user login:

typescript
// app/routes/login.tsx
import { ActionFunction, json, LoaderFunction } from "@remix-run/node";
import { Form, useActionData, useNavigation } from "@remix-run/react";
import { supabase } from "~/supabase.server";

export const action: ActionFunction = async ({ request }) => {
  const formData = await request.formData();
  const email = formData.get("email") as string;
  const password = formData.get("password") as string;

  const { error } = await supabase.auth.signInWithPassword({
    email,
    password,
  });

  if (error) {
    return json({ errors: { form: error.message } }, { status: 400 });
  }

  return json({ success: true });
};

export const loader: LoaderFunction = async () => {
  return json({});
};

export default function Login() {
  const actionData = useActionData<typeof action>();
  const navigation = useNavigation();

  return (
    <div>
      <h1>Login</h1>
      <Form method="post">
        {actionData?.errors?.form && (
          <p className="error-message">{actionData.errors.form}</p>
        )}
        <div>
          <label htmlFor="email">Email:</label>
          <input type="email" id="email" name="email" required />
        </div>
        <div>
          <label htmlFor="password">Password:</label>
          <input type="password" id="password" name="password" required />
        </div>
        <button type="submit" disabled={navigation.state === "submitting"}>
          {navigation.state === "submitting" ? "Logging in..." : "Login"}
        </button>
      </Form>
    </div>
  );
}

This code snippet demonstrates how to use Supabase to authenticate users and manage sessions in your Remix app. Replay will generate similar code for other authentication flows, such as user registration and password reset.

Step 7: Customizing and Enhancing the Code#

While Replay generates a functional Remix app, you'll likely need to customize and enhance the code to meet your specific requirements.

• •Add custom logic: Implement any business logic that is not captured in the UI video.
• •Refactor the code: Improve the code structure and maintainability.
• •Optimize performance: Optimize the code for performance and scalability.

The Replay Advantage#

Replay offers several advantages over traditional UI development approaches:

• •Faster development cycles: Replay significantly reduces the time and effort required to build UI.
• •Improved accuracy: Replay captures the nuances of user behavior, resulting in more accurate and user-friendly UI.
• •Reduced costs: Replay automates many of the manual tasks involved in UI development, reducing development costs.
• •Enhanced collaboration: Replay provides a common language for designers and developers, improving collaboration and communication.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited functionality. Paid plans are available for users who need more features and higher usage limits.

How is Replay different from v0.dev?#

v0.dev focuses on generating UI components from text prompts. Replay, on the other hand, analyzes video recordings of user interactions to generate fully functional UI code, including routing, data fetching, and session management. Replay understands behavior, not just visual appearances.

Can Replay handle complex UI interactions?#

Yes, Replay is designed to handle complex UI interactions, such as drag-and-drop, animations, and dynamic content updates.

What kind of video quality is needed for Replay to work effectively?#

While Replay can handle various video qualities, higher resolution and clear visuals will result in more accurate code generation. Aim for at least 720p resolution.

What if the video contains errors or unintentional actions?#

Replay allows you to edit and annotate the video before generating the code, allowing you to correct any errors or remove unintentional actions.

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Ready to try behavior-driven code generation? Get started with Replay - transform any video into working code in seconds.