How to Reconstruct a Healthcare Portal from Video to React with Replay: A Deep Dive

TL;DR: Learn how to reconstruct a fully functional React-based healthcare portal UI from a screen recording using Replay's video-to-code engine, leveraging behavior-driven reconstruction and Supabase integration.

The dream of instantly translating user flows into working code is now a reality. Forget static screenshots and limited mockups. With Replay, we can now reconstruct entire user interfaces from video recordings, capturing not just the visual elements but also the underlying user behavior. This article will guide you through the process of reconstructing a healthcare portal UI from video to React, showcasing Replay's powerful capabilities.

The Problem: Bridging the Gap Between Design and Code#

Traditional UI development often involves a fragmented process: design mockups, static prototypes, and manual coding. This introduces several challenges:

• •Misinterpretation of Intent: Static designs lack the dynamic context of user interaction. Developers must infer the intended behavior, leading to potential discrepancies.
• •Time-Consuming Manual Coding: Translating designs into functional code is a repetitive and error-prone process.
• •Maintaining Consistency: Ensuring design consistency across the entire application requires meticulous attention to detail.

Replay addresses these challenges by directly analyzing video recordings of user interactions, enabling behavior-driven reconstruction of UI components.

Introducing Replay: Video as the Source of Truth#

Replay is a revolutionary video-to-code engine that uses Gemini to reconstruct working UI from screen recordings. Unlike traditional screenshot-to-code tools, Replay understands what users are trying to do, not just what they see. This "Behavior-Driven Reconstruction" approach ensures that the generated code accurately reflects the intended user experience.

Reconstructing a Healthcare Portal: A Step-by-Step Guide#

Let's walk through reconstructing a healthcare portal UI using Replay. We'll assume you have a video recording showcasing the key workflows: patient login, appointment scheduling, and viewing medical records.

Step 1: Uploading and Analyzing the Video#

First, upload your video to the Replay platform. Replay's engine will then analyze the video, identifying UI elements, user interactions, and navigation flows.

💡 Pro Tip: Clear, well-defined video recordings yield the best results. Ensure good lighting and minimal distractions in the background.

Step 2: Configuring the Project#

Next, configure your project settings. This includes selecting the target framework (React in this case), specifying the output directory, and configuring any necessary integrations (e.g., Supabase for backend data).

Step 3: Generating the Code#

With the video analyzed and the project configured, initiate the code generation process. Replay will use its AI engine to reconstruct the UI, generating React components, styling, and event handlers.

Step 4: Integrating with Supabase (Optional)#

Replay seamlessly integrates with Supabase, allowing you to automatically connect your reconstructed UI to a backend database. This simplifies the process of fetching and displaying data in your application. To do this, you'll need to provide your Supabase URL and API key within Replay's project settings.

📝 Note: You'll need a Supabase project set up beforehand with the necessary tables and data for your healthcare portal (e.g.,

text

patients

,

text

appointments

,

text

medical_records

).

Step 5: Reviewing and Refining the Code#

Once the code generation is complete, review the generated code. While Replay strives for accuracy, you may need to make minor adjustments to fine-tune the UI or optimize the code.

⚠️ Warning: Always thoroughly test the generated code to ensure it functions as expected. Pay close attention to data binding and event handling.

Here's an example of a generated React component for a patient dashboard:

typescript
// Generated by Replay
import React, { useState, useEffect } from 'react';
import { createClient } from '@supabase/supabase-js';

const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL;
const supabaseKey = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY;
const supabase = createClient(supabaseUrl, supabaseKey);

interface Patient {
  id: number;
  name: string;
  medical_history: string;
}

const PatientDashboard = () => {
  const [patient, setPatient] = useState<Patient | null>(null);

  useEffect(() => {
    const fetchPatientData = async () => {
      const { data, error } = await supabase
        .from('patients')
        .select('*')
        .eq('id', 1) // Assuming patient ID 1 for demonstration
        .single();

      if (error) {
        console.error('Error fetching patient data:', error);
      } else {
        setPatient(data);
      }
    };

    fetchPatientData();
  }, []);

  if (!patient) {
    return <div>Loading patient data...</div>;
  }

  return (
    <div>
      <h2>Welcome, {patient.name}</h2>
      <p>Medical History: {patient.medical_history}</p>
      {/* Add more components for appointments, records, etc. */}
    </div>
  );
};

export default PatientDashboard;

This code demonstrates how Replay can generate React components with data fetching logic using Supabase. The component fetches patient data from the

table and displays it on the dashboard.

Here's an example of styling that Replay might infer and inject into the component:

css
/* Injected Styles */
.patient-dashboard {
  font-family: sans-serif;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.patient-dashboard h2 {
  color: #333;
  margin-bottom: 10px;
}

Replay intelligently extracts these styles from the video and applies them, saving countless hours of manual CSS writing.

Key Benefits of Using Replay#

• •Accelerated Development: Replay significantly reduces the time required to build UI components, allowing developers to focus on more complex logic.
• •Improved Accuracy: Behavior-driven reconstruction ensures that the generated code accurately reflects the intended user experience.
• •Enhanced Collaboration: Replay facilitates collaboration between designers and developers by providing a common source of truth (the video recording).
• •Reduced Errors: Automated code generation minimizes the risk of human error, leading to more stable and reliable applications.
• •Rapid Prototyping: Quickly create functional prototypes from video recordings to validate design ideas and gather user feedback.
• •Multi-Page Generation: Replay can generate entire multi-page applications, not just individual components.
• •Product Flow Maps: Replay automatically generates visual maps of user flows, making it easier to understand and optimize the user experience.

Real-World Use Cases#

Replay is applicable in a wide range of scenarios, including:

• •Rapid Prototyping: Quickly create functional prototypes from video recordings of user flows.
• •Legacy System Modernization: Reconstruct UI components from video recordings of legacy applications.
• •Training Material Generation: Automatically generate code examples from video tutorials.
• •UI Testing: Create automated UI tests based on video recordings of user interactions.
• •Streamlining Design Handoffs: Bridge the gap between designers and developers with video-driven code generation.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited features. Paid plans are available for more advanced functionality and usage. Check the Replay pricing page for the latest details.

How is Replay different from v0.dev?#

While both Replay and v0.dev aim to automate UI development, they differ in their approach. v0.dev primarily uses text prompts to generate UI components, while Replay analyzes video recordings of user interactions. Replay's behavior-driven reconstruction provides a more accurate and context-aware code generation process. Replay also offers multi-page generation and Supabase integration, which are not available in v0.dev.

What frameworks are supported?#

Currently, Replay supports React, with plans to expand support to other popular frameworks in the future.

Can I customize the generated code?#

Yes, the generated code is fully customizable. You can modify the code to fine-tune the UI, add custom logic, or integrate with other libraries and frameworks.

---

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