How to Recreate a Real Estate Marketplace from Video to React with Supabase and Replay

TL;DR: Replay uses behavior-driven reconstruction to transform a video of a real estate marketplace into a functional React application with Supabase integration.

The dream of instantly converting ideas into working code is now a reality. Forget painstakingly coding every component from scratch. Imagine recording a walkthrough of your ideal real estate marketplace and having a functional React application generated in minutes. This isn't just screenshot-to-code; it's behavior-driven reconstruction, and it's powered by Replay.

From Video to React: A Real Estate Marketplace Example#

We'll walk through recreating a simplified real estate marketplace using a video walkthrough as the source of truth. We'll leverage Replay's ability to understand user intent from video and generate a React application, complete with Supabase integration for data management and authentication.

Step 1: The Video Walkthrough - Defining the User Experience#

The foundation of this process is a clear video recording of the desired user experience. The video should showcase key interactions, such as:

• •Browsing available properties
• •Filtering properties by location, price, and size
• •Viewing individual property details
• •User authentication (login/signup)
• •Adding properties to a favorites list

The more comprehensive the video, the more accurate and complete the generated application will be. Remember, Replay understands user behavior from the video, so demonstrate the desired flow clearly.

Step 2: Uploading and Processing with Replay#

Once the video is ready, it's uploaded to the Replay platform. Replay's AI engine then analyzes the video, identifying UI elements, user interactions, and overall application flow. This process leverages Gemini's powerful video understanding capabilities to decipher the intent behind each click and scroll.

💡 Pro Tip: A well-narrated video significantly improves accuracy. Explain what you're doing as you interact with the interface in the video.

Step 3: Generating the React Application#

After processing the video, Replay generates a fully functional React application. This includes:

• •React components representing each UI element (e.g., property cards, search filters, detail views)
• •Routing logic to navigate between pages
• •State management (using Context API or a similar solution) to handle user interactions and data updates
• •Supabase integration for data fetching, storage, and user authentication

Here's an example of a generated React component for displaying a property card:

typescript
// Generated by Replay
import React from 'react';

interface PropertyCardProps {
  title: string;
  address: string;
  price: number;
  imageUrl: string;
}

const PropertyCard: React.FC<PropertyCardProps> = ({ title, address, price, imageUrl }) => {
  return (
    <div className="property-card">
      <img src={imageUrl} alt={title} />
      <h3>{title}</h3>
      <p>{address}</p>
      <p>${price}</p>
    </div>
  );
};

export default PropertyCard;

Step 4: Supabase Integration - Data and Authentication#

Replay automatically integrates with Supabase to handle data storage and user authentication. It generates the necessary API calls to fetch property data from your Supabase database and implements authentication flows (login, signup, password reset).

Here's an example of a generated Supabase client initialization:

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

const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL;
const supabaseAnonKey = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY;

if (!supabaseUrl || !supabaseAnonKey) {
  throw new Error('Missing Supabase URL or Anon Key');
}

export const supabase = createClient(supabaseUrl, supabaseAnonKey);

And an example of fetching property data:

typescript
// components/PropertyList.tsx
import { useState, useEffect } from 'react';
import { supabase } from '../supabaseClient';
import PropertyCard from './PropertyCard';

interface Property {
  id: number;
  title: string;
  address: string;
  price: number;
  image_url: string;
}

const PropertyList = () => {
  const [properties, setProperties] = useState<Property[]>([]);

  useEffect(() => {
    const fetchProperties = async () => {
      const { data, error } = await supabase
        .from('properties')
        .select('*');

      if (error) {
        console.error('Error fetching properties:', error);
        return;
      }

      if (data) {
        setProperties(data);
      }
    };

    fetchProperties();
  }, []);

  return (
    <div className="property-list">
      {properties.map(property => (
        <PropertyCard key={property.id} {...property} />
      ))}
    </div>
  );
};

export default PropertyList;

Step 5: Customization and Refinement#

While Replay generates a functional application, some customization and refinement are usually necessary. This might involve:

• •Adjusting styling to match your brand
• •Adding custom logic or features
• •Optimizing performance

Replay provides tools for injecting custom styles and modifying the generated code, allowing you to tailor the application to your specific needs.

📝 Note: Replay generates clean, well-structured code that's easy to understand and modify.

Step 6: Product Flow Maps#

Replay also generates a product flow map based on the video. This visualization helps understand the user journey and identify potential areas for improvement. It highlights the different screens and transitions within the application, providing a high-level overview of the user experience.

Replay vs. Traditional Methods and Screenshot-to-Code#

Replay offers significant advantages over traditional development methods and even screenshot-to-code tools.

⚠️ Warning: Screenshot-to-code tools often struggle with dynamic elements and complex interactions. Replay excels in these areas due to its video-based approach.

Addressing Common Concerns#

• •Accuracy: Replay's accuracy depends on the quality and clarity of the video. A well-narrated video with clear interactions yields the best results.
• •Customization: While Replay generates a functional application, some customization is usually required. Replay provides tools for injecting styles and modifying the generated code.
• •Complexity: Replay handles complex UI elements and interactions effectively, but extremely intricate applications may require more manual refinement.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited features and usage. Paid plans are available for more extensive use and access to advanced features like Supabase integration and style injection.

How is Replay different from v0.dev?#

While both aim to accelerate UI development, Replay uniquely uses video as its source of truth, enabling behavior-driven reconstruction. V0.dev uses text prompts and focuses on generating individual components, while Replay generates entire applications with integrated workflows. Replay understands the why behind the UI, not just the what.

What kind of applications can I build with Replay?#

Replay is well-suited for building a wide range of applications, including e-commerce platforms, dashboards, social media apps, and internal tools. Anything where you can record a clear video walkthrough of the desired user experience.

Can I use Replay with other backend services besides Supabase?#

Currently, Replay primarily integrates with Supabase for backend services. Support for other platforms is planned for future releases.

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