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VaxTrust Frontend Documentation

Overview

VaxTrust is a vaccine transparency and safety verification platform built with React. The frontend provides an intuitive interface for users to scan vaccine batch QR codes, view safety scores, and access aggregated vaccine safety data from AEFI (Adverse Events Following Immunization) reports.

Current Status: Frontend is fully functional with static data (no backend required). Ready for backend integration when API server is implemented.

Technology Stack

Core Technologies

React 18.2.0

  • Modern React with Hooks API (useState, useEffect)
  • Functional components throughout
  • StrictMode enabled for development checks

React Router DOM 6.20.0

  • Client-side routing with declarative navigation
  • BrowserRouter for clean URLs
  • Programmatic navigation with useNavigate hook

Create React App 5.0.1

  • Zero-configuration build setup
  • Development server with hot reload
  • Production optimization and bundling
  • Jest testing framework integration
  • ESLint configuration

External Libraries

Remix Icon 4.2.0

  • Icon library loaded via CDN
  • Consistent iconography across UI
  • No additional bundle size impact

Google Fonts (Inter)

  • Professional typography
  • Variable font weights (300-700)
  • Optimized for web performance

Data Architecture

Static JSON Data Store (Current Implementation)

  • No backend API required for demo/testing
  • All data served from /public/data/ directory
  • Three primary data sources:
    • batches.json - Vaccine batch information (~10 batches with full metadata)
    • trust-scores.json - Aggregated safety scores for all vaccine types
    • aefi-data.json - Adverse event data per batch with symptoms and trust scores
  • In-memory caching for performance (module-level cache variables)
  • localStorage for user-submitted reports (demo mode only)

Data File Structures:

batches.json:

[
  {
    "batch_id": "COV_KA_202302_00001",
    "vaccine_name": "COVAXIN",
    "vaccine_full_name": "Inactivated COVID-19 vaccine (Bharat Biotech)",
    "manufacturer": "Bharat Biotech International Limited",
    "batch_number": "00001",
    "state": "Karnataka",
    "allocated_to": "Karnataka State Immunization Officer",
    "manufacturing_date": "2021-11-07",
    "expiry_date": "2022-10-27",
    "doses_in_batch": 1000,
    "received_date": "2022-06-20",
    "vaccine_cold_chain": "2-8°C",
    "storage_location": "Karnataka Cold Storage - Unit 4"
  }
]

aefi-data.json:

{
  "aefi_by_batch": {
    "COV_KA_202302_00001": [
      {
        "symptom": "fever",
        "count": 15,
        "severity_breakdown": { "mild": 10, "moderate": 4, "severe": 1 }
      }
    ]
  },
  "trust_by_batch": {
    "COV_KA_202302_00001": {
      "score": 0.87,
      "total_cases": 31,
      "causal_cases": 4,
      "classification_breakdown": { "A1": 2, "A2": 1, "A4": 1, "B1": 4, "C": 23 }
    }
  },
  "outcome_by_batch": {
    "COV_KA_202302_00001": {
      "recovered": 20,
      "hospitalized": 8,
      "ongoing": 3
    }
  }
}

trust-scores.json:

{
  "generated_at": "2025-12-25T00:00:00Z",
  "vaccines": [
    {
      "vaccine_name": "COVISHIELD",
      "vaccine_full_name": "Oxford/AstraZeneca (Manufactured by SII)",
      "manufacturer": "Serum Institute of India",
      "total_batches": 847,
      "trust_score": {
        "score": 0.92,
        "total_cases": 198,
        "causal_cases": 16,
        "deaths": 31,
        "hospitalized": 92,
        "classification_breakdown": { "A1": 8, "A2": 3, "A3": 2, "A4": 3, "B1": 24, "B2": 18, "C": 140 }
      },
      "common_side_effects": [
        { "symptom": "fever", "count": 45 },
        { "symptom": "headache", "count": 38 }
      ]
    } (from ScanPage via App.js state)

**Layout:**
- Two-column responsive layout
- Left column: Trust score circle with visual ring indicator
- Right column: Batch details, side effects, outcomes, causality analysis

**Data Display:**
- **Trust Score Circle:** Animated ring showing score percentage with color coding
- **Trust Badge:** Safety classification label (High Safety/Moderate Safety/Review Recommended)
- **Trust Stats:** Total reports and causal cases count
- **Vaccine Details Card:** All batch metadata (vaccine name, manufacturer, batch ID, state, expiry, storage)
- **Reported Side Effects Card:** Common symptoms with count badges and severity breakdown
- **Outcome Summary Card:** Recovery status distribution (recovered, hospitalized, ongoing, death)
- **Causality Analysis Card:** WHO classification breakdown (A1-A4, B1-B2, C categories)

**Trust Score Color Logic:**
```javascript
>= 85% = High Safety (Green #4A9B7F)
>= 70% = Moderate Safety (Orange #C4944A)
<  70% = Review Recommended (Red #C45A5A)

Visual Elements:

  • Circular progress indicator with animated border
  • Color-coded badges and icons
  • Responsive info rows with labels and values
  • Tag-based symptom display
  • Icon indicators for each data type

Actions:

  • Back to Scan button (desktop and mobile)
  • Navigate to Dashboard
  • Report Symptoms (navigates to FeedbackPage with batch contextning interface │ │ ├── ResultPage.js # Batch safety results │ │ ├── DashboardPage.js # Vaccine overview dashboard │ │ └── FeedbackPage.js # Symptom reporting │ └── services/ │ └── api.js # Data fetching service layer └── package.json # Dependencies and scripts

## Component Architecture

### App.js (Root Component)

**Purpose:** Application shell with routing configuration

**State Management:**
- Props:**
- `batchData` - Batch context from scanning (provides batch_id)

**State:**
- `selectedSymptoms` - Array of selected symptom names
- `severity` - "mild", "moderate", or "severe"
- `onsetDays` - Number of days since vaccination
- `notes` - Optional user comments
- `loading` - Submission status
- `submitted` - Success state
- `error` - Error messages

**Symptom Options (10 predefined):**
```javascript
const SYMPTOM_OPTIONS = [
  { name: 'Fever', icon: 'ri-temp-hot-line' },
  { name: 'Headache', icon: 'ri-mental-health-line' },
  { name: 'Fatigue', icon: 'ri-rest-time-line' },
  { name: 'Muscle Pain', icon: 'ri-walk-line' },
  { name: 'Injection Site Pain', icon: 'ri-syringe-line' },
  { name: 'Nausea', icon: 'ri-emotion-sad-line' },
  { name: 'Chills', icon: 'ri-temp-cold-line' },
  { name: 'Joint Pain', icon: 'ri-body-scan-line' },
  { name: 'Dizziness', icon: 'ri-loader-line' },
  { name: 'Other', icon: 'ri-more-line' }
];

Features:

  • Requirement Check: Redirects to scan page if no batch context available
  • Multi-select Symptoms: Clickable cards with toggle selection
  • Severity Selection: Three-button radio group (Mild/Moderate/Severe)
  • Onset Days Input: Optional numeric field for timing
  • Notes Field: Optional textarea for additional details
  • Validation: Client-side checks for required fields
  • Success State: Confirmation message with batch ID reference
  • localStorage Persistence: Reports stored locally with timestamp and ID (RPT_<timestamp>)

Form Structure:

{
  batch_id: "COV_KA_202302_00001",
  symptoms: ["Fever", "Headache"],
  severity: "mild",
  onset_days: 2,  // optional
  notes: "..."    // optional
}

User Flow:

  1. User arrives from ResultPage with batch context
  2. Selects symptoms (minimum 1 required)
  3. Chooses severity level (required)
  4. Optionally adds onset days and notes
  5. Submits form with validation
  6. Sees success confirmation
  7. Can report another or return homes)
  • /dashboard - DashboardPage (aggregate data)
  • /feedback - FeedbackPage (symptom r (demo mode)
  • Adds timestamp and auto-generated ID
  • Parameters: { batch_id, symptoms, severity, onset_days?, notes? }
  • Returns: { success: true, message, report_id }
  • Report ID format: RPT_<timestamp> (e.g., RPT_1735123045123)
  • Future: all available batch IDs from batches.json
  • Used for quick testing on ScanPage
  • Displays first 4 batches as clickable demo buttons
  • Returns: { sample_batches: ["COV_AN_202203_00000", ...] }

healthCheck()

  • Always returns healthy status in static mode
  • Returns: { status: "healthy", mode: "static", message: "VaxTrust running in static mode" }
  • Future: Will check backend API status when integrateder entry point for batch verification

State:

  • manualInput - User-entered batch ID
  • loading - Request status indicator
  • error - Error message display
  • sampleBatches - Pre-loaded example batches

Features:

  • QR code scanner interface (UI only, camera integration pending)
  • Manual batch ID input with validation
  • Quick-access sample batch buttons
  • Real-time error handling
  • Navigation to dashboard

User Flow:

  1. User scans QR code OR enters batch ID manually
  2. System validates input
  3. Fetches batch data via API service
  4. Navigates to ResultPage with data
  5. Shows appropriate error if batch not found

ResultPage.js

Purpose: Display comprehensive batch safety information

Props:

  • batchData - Complete batch and trust score data

Data Display:

  • Trust score with visual indicator (0-100%)
  • Safety classification (High/Moderate/Low)
  • Batch details (manufacturer, expiry, state)
  • Common side effects with frequency
  • Outcome summary statistics
  • AEFI classification breakdown

Trust Score Logic:

>= 85% = High Safety (Green)
>= 70% = Moderate Safety (Orange)
<  70% = Review Recommended (Red)

Actions:

  • Navigate back to scan page
  • Navigate to dashboard
  • Report symptoms (navigates to feedback page)

DashboardPage.js

Purpose: Aggregate view of all vaccine safety data

State:

  • data - Complete trust scores dataset
  • loading - Data loading indicator
  • error - Error state handling

Features:

  • Overview of all COVID-19 vaccines
  • Trust scores by vaccine type
  • Total doses administered
  • Aggregate AEFI statistics
  • Batch count per vaccine
  • Color-coded safety indicators

Data Loading:

  • Fetches on component mount
  • Shows loading spinner
  • Error state with retry option
  • Responsive card layout

FeedbackPage.js

Purpose: Anonymous symptom reporting interface

State:

  • Form data for symptom submission
  • Validation state
  • Submission status

Features:

  • Anonymous reporting (no personal data)
  • Symptom selection interface
  • Severity rating
  • Date of vaccination
  • Batch ID pre-filled from context
  • localStorage persistence (demo mode)

Services Layer

api.js

Purpose: Centralized data access layer

Architecture:

  • Singleton caching pattern
  • Asynchronous data loading
  • Error handling with structured responses
  • No external API dependencies

Functions:

loadBatches()

  • Loads batch data from static JSON
  • Returns cached data on subsequent calls
  • Source: /data/batches.json

loadTrustScores()

  • Loads aggregate trust score data
  • Implements caching
  • Source: /data/trust-scores.json

loadAefiData()

  • Loads adverse event data
  • Caches for performance
  • Source: /data/aefi-data.json

getBatchDetails(batchId)

  • Primary function for batch lookup
  • Parameters: batchId (string)
  • Returns: Complete batch object with:
    • Batch metadata
    • Trust score and statistics
    • Common side effects
    • Outcome summary
  • Throws: 404 error if batch not found

getTrustScores()

  • Returns all vaccine trust scores
  • Used by dashboard for overview
  • Includes aggregated statistics

reportSymptom(report)

  • Stores symptom report in localStorage
  • Demo implementation (no backend)
  • Returns confirmation object

getSampleBatches()

  • Returns example batch IDs
  • Used for quick testing
  • Helpful for new users

Styling Approach

CSS Architecture

Global Styles (index.css):

  • CSS custom properties for theming
  • Mobile-first responsive design
  • Flexbox and Grid layouts
  • No CSS framework dependencies

Design System:

Colors:

  • Primary: Teal/Cyan palette
  • Success: Green (#059669)
  • Warning: Orange (#d97706)
  • Danger: Red (#dc2626)
  • Neutral: Grays for text and backgrounds

Typography:

  • Font Family: Inter (Google Fonts)
  • Base Size: 16px
  • Scale: Consistent sizing hierarchy
  • Weights: 400 (regular), 500 (medium), 600 (semibold)

Components:

  • Cards with subtle shadows
  • Rounded corners (8-16px border radius)
  • Icon integration with Remix Icon
  • Button variants (primary, secondary, outline)
  • Form inputs with focus states
  • Loading states and spinners
  • Alert/notification patterns

Responsive Design:

  • Mobile-first breakpoints
  • Flexible grid layouts
  • Touch-friendly tap targets (44px minimum)
  • Viewport meta tag for proper scaling

Class Naming Convention

Semantic, component-

Transitioning to Backend API

When the backend is ready, update services/api.js:

  1. Change fetch() calls from /data/*.json to API endpoints
  2. Update base URL: const API_BASE_URL = 'http://localhost:5000/api';
  3. Modify functions to use REST endpoints:
    export const getBatchDetails = async (batchId) => {
      const response = await fetch(`${API_BASE_URL}/batch/${batchId}`);
      if (!response.ok) {
        const error = new Error('Batch not found');
        error.response = { status: response.status };
        throw error;
      }
      return response.json();
    };
  4. Remove localStorage logic from reportSymptom()
  5. Add error handling for network failures
  6. Consider adding request interceptors for auth (if needed later)based naming:
.card
.card-header
.card-title
.card-subtitle
.btn
.btn-primary
.btn-full
.trust-score-card
.trust-score-circle
.info-list
.info-row

Data Flow

Application State Flow

User Action (Scan Page)
    ↓
getBatchDetails(batchId)
    ↓
Fetch from Static JSON
    ↓
Process & Combine Data
    ↓
Update Parent State (App.js)
    ↓
Navigate to Result Page
    ↓
Display Results

Caching Strategy

Initial Load:

  1. First API call loads JSON from /data/ directory
  2. Data stored in module-level cache variables
  3. Subsequent calls return cached data instantly

Benefits:

  • Reduced network requests
  • Faster page transitions
  • Consistent data across views
  • No cache invalidation needed (static data)

Error Handling

Network Errors:

  • Graceful degradation with user-friendly messages
  • Retry mechanisms where appropriate
  • Empty states for missing data

Validation Errors:

  • Client-side input validation
  • Real-time error messages
  • Clear error descriptions

404 Handling:

  • Specific message for batch not found
  • Guidance to check batch ID
  • Navigation back to scan page

Development Workflow

Available Scripts

Start Development Server:

npm start

Build Production Bundle:

npm build
  • Creates optimized production build
  • Output to /build directory
  • Minified and tree-shaken
  • Ready for deployment

Run Tests:

npm test
  • Runs Jest test suite
  • Interactive watch mode
  • Coverage reports available

Eject Configuration:

npm run eject
  • One-wment API calls after the backend is built (currently using static JSON)
  • Add request/response interceptors for better error handling
  • Implement retry logic for failed requests
  • Add loading skeletons instead of spinners
  • Exposes webpack/babel configuration
  • Not recommended unless necessary

Development Environment Setup

Prerequisites:

  • Node.js 14+ (recommended: 18+)
  • npm 6+ or yarn
  • Modern browser (Chrome, Firefox, Safari, Edge)

Installation:

cd frontend
npm install

Environment Configuration:

  • No environment variables required
  • Data served from /public/data/ directory
  • homepage: "." in package.json for flexible deployment

Adding New Features

Creating a New Page

  1. Create component in /src/pages/NewPage.js
  2. Import necessary hooks and services
  3. Add route in App.js:
    <Route path="/new-page" element={<NewPage />} />
  4. Add navigation button where needed

Adding New Data Sources

  1. Place JSON file in /public/data/
  2. Create loader function in api.js:
    let newDataCache = null;
    
    const loadNewData = async () => {
      if (newDataCache) return newDataCache;
      const response = await fetch('/data/new-data.json');
      newDataCache = await response.json();
      return newDataCache;
    };
  3. Export public API function
  4. Use in components

Styling New Components

  1. Follow existing class naming patterns
  2. Use existing color variables
  3. Ensure mobile responsiveness
  4. Add styles to index.css
  5. Test on multiple screen sizes

Testing

Current Testing Setup

Framework: Jest (via Create React App)

Test Types:

  • Unit tests for utility functions
  • Component tests with React Testing Library
  • Integration tests for user flows

Running Tests:

npm test                 # Watch mode
npm test -- --coverage   # With coverage report
npm test -- --watchAll=false  # Single run

Recommended Test Coverage

Priority Areas:

  • API service functions (getBatchDetails, getTrustScores)
  • Form validation logic
  • Error handling paths
  • Navigation flows
  • Trust score calculations

Deployment

Static Hosting Options

Recommended Platforms:

  • Vercel (zero-config React deployment)
  • Netlify (drag-and-drop or CLI)
  • GitHub Pages
  • AWS S3 + CloudFront
  • Firebase Hosting

Build Process

npm run build

Output:

  • Optimized bundle in /build/
  • Code splitting for better performance
  • Minified CSS and JS
  • Asset fingerprinting for cache busting

Deployment Checklist

  • Run production build
  • Test build locally (npx serve -s build)
  • Verify all routes work
  • Check data loading from /data/ directory
  • Test on mobile devices
  • Verify browser compatibility
  • Check console for errors
  • Test edge cases (invalid batch IDs, etc.)

Browser Compatibility

Supported Browsers

Production:

  • Chrome/Edge (last 2 versions)
  • Firefox (last 2 versions)
  • Safari (last 2 versions)
  • Mobile Safari (iOS 12+)
  • Chrome Mobile (Android 8+)

Development:

  • Latest Chrome
  • Latest Firefox
  • Latest Safari

Required Features

  • ES6+ JavaScript support
  • Fetch API
  • LocalStorage
  • CSS Grid and Flexbox
  • CSS Custom Properties

Performance Optimization

Current Optimizations

Code Splitting:

  • React Router automatically splits by route
  • Lazy loading can be added for larger components

Caching:

  • In-memory data caching
  • Browser HTTP caching for static assets
  • Service Worker potential (not yet implemented)

Asset Optimization:

  • Minified JavaScript and CSS
  • Optimized images (if any added)
  • Font loading optimization

Future Improvements

  • Implement service worker for offline support
  • Add image lazy loading
  • Optimize bundle size with dynamic imports
  • Add skeleton screens for better perceived performance
  • Implement virtual scrolling for large lists
  • Impletement API calls after the backend is built as currently the values are hardcoded

Accessibility

Current Implementation

ARIA Considerations:

  • Semantic HTML elements
  • Icon-only buttons should include aria-labels
  • Form inputs should have proper labels
  • Loading states should be announced

Keyboard Navigation:

  • All interactive elements keyboard accessible
  • Logical tab order
  • Focus visible states

Accessibility Checklist

  • All images have alt text
  • Form inputs have labels
  • Color contrast meets WCAG AA standards
  • Focus indicators visible
  • Screen reader testing
  • Keyboard-only navigation testing

Security Considerations

Current Security Measures

Data Privacy:

  • No personal data collection
  • Anonymous symptom reporting
  • No authentication required
  • LocalStorage for demo data only

Content Security:

  • React's built-in XSS protection
  • No dangerouslySetInnerHTML usage
  • Input sanitization for batch IDs

Network Security:

  • HTTPS recommended for deployment
  • No sensitive data transmission
  • Static data only (no API keys)

Common Issues and Troubleshooting

Issue: "Batch not found"

Cause: Invalid or non-existent batch ID

Solution:

  • Check batch ID format
  • Verify data exists in batches.json
  • Use sample batches for testing

Issue: "Unable to load dashboard data"

Cause: Missing or malformed JSON files

Solution:

  • Verify JSON files exist in /public/data/
  • Check JSON syntax validity
  • Check browser console for fetch errors

Issue: Routes not working after deployment

Cause: Server not configured for client-side routing

Solution:

  • Configure server to serve index.html for all routes
  • For static hosts, add _redirects or vercel.json config
  • Use HashRouter as fallback

Issue: Styles not loading

Cause: CSS import or build issues

Solution:

  • Verify index.css is imported in index.js
  • Check for CSS syntax errors
  • Clear browser cache
  • Rebuild the application

Backend Integration Requirements

What the Backend Developer Needs to Know

Current State:

  • Frontend is fully functional with static JSON data
  • No API calls to backend server yet
  • All data served from /public/data/ directory
  • User reports stored in localStorage (temporary)

Expected Backend Endpoints (see API_CONTRACT.md for full details):

  1. GET /api/batch/:batch_id

    • Returns: Batch details with trust score, side effects, and outcome summary
    • Frontend expects exact structure as shown in API_CONTRACT.md
    • Used by: ScanPage → ResultPage flow
  2. GET /api/trust-scores

    • Returns: Array of all vaccines with aggregated trust scores
    • Frontend expects exact structure as shown in API_CONTRACT.md
    • Used by: DashboardPage
  3. POST /api/report-symptom

    • Accepts: { batch_id, symptoms[], severity, onset_days?, notes? }
    • Returns: { success: true, report_id, message }
    • Used by: FeedbackPage
  4. GET /api/batches

    • Returns: { sample_batches: [...] } (for demo/testing)
    • Used by: ScanPage for quick access buttons
  5. GET /api/health

    • Returns: Server health status
    • Optional but recommended

Data Structure Requirements:

The backend MUST return data in the exact structure the frontend expects. Key fields:

Batch Details Response:

{
  batch: {
    batch_id: string,
    vaccine_name: string,
    vaccine_full_name: string,
    manufacturer: string,
    state: string,
    expiry_date: string (YYYY-MM-DD),
    manufacturing_date: string,
    vaccine_cold_chain: string,
    storage_location: string,
    doses_in_batch: number,
    batch_number: string,
    allocated_to: string,
    received_date: string
  },
  trust_score: {
    score: number (0-1),
    total_cases: number,
    causal_cases: number,
    classification_breakdown: {
      "A1": number,
      "A2": number,
      "A3": number,
      "A4": number,
      "B1": number,
      "B2": number,
      "C": number
    }
  },
  common_side_effects: [
    {
      symptom: string (lowercase, underscore_separated),
      count: number,
      severity_breakdown: {
        mild: number,
        moderate: number,
        severe: number
      }
    }
  ],
  outcome_summary: {
    recovered: number,
    hospitalized: number,
    ongoing: number,
    death: number
  }
}

Trust Scores Response:

{
  generated_at: string (ISO date),
  vaccines: [
    {
      vaccine_name: string,
      vaccine_full_name: string,
      manufacturer: string,
      total_batches: number,
      trust_score: { /* same structure as above */ },
      common_side_effects: [ /* same structure as above */ ]
    }
  ]
}

Critical Notes for Backend:

  • Symptom names should be lowercase with underscores (e.g., "injection_site_pain")
  • Trust scores are decimals (0-1), frontend converts to percentage
  • Classification breakdown includes all WHO categories (A1-A4, B1-B2, C)
  • Dates should be ISO strings or YYYY-MM-DD format
  • Handle 404 errors properly for invalid batch IDs
  • CORS must be enabled for development (frontend runs on :3000, backend on :5000)

Frontend Changes Needed When Backend is Ready:

  1. Update services/api.js base URL
  2. Change fetch('/data/*.json') to fetch('http://localhost:5000/api/...')
  3. Remove localStorage logic from reportSymptom
  4. Add proper error handling for network failures
  5. Optional: Add loading states during API calls

Future Enhancements

Planned Features

QR Code Integration:

  • Implement actual QR code scanning
  • Camera permission handling
  • QR code parsing library integration

Enhanced Reporting:

  • More detailed symptom form
  • File upload for medical documents
  • Follow-up tracking

Data Visualization:

  • Interactive charts (Chart.js or Recharts)
  • Time-series AEFI trends
  • Geographic distribution maps

User Experience:

  • Dark mode toggle
  • Language internationalization (i18n)
  • Progressive Web App (PWA) features
  • Offline support with Service Workers

Backend Integration:

  • Replace static JSON with REST API
  • Real-time data updates
  • User authentication (optional)
  • Report aggregation and analytics

Contributing Guidelines

Code Standards

JavaScript:

  • Use functional components with hooks
  • Avoid class components
  • Destructure props and state
  • Use async/await for promises
  • Add JSDoc comments for complex functions

Naming Conventions:

  • Components: PascalCase (UserProfile.js)
  • Functions: camelCase (getUserData)
  • Constants: UPPER_SNAKE_CASE (API_BASE_URL)
  • CSS classes: kebab-case (user-profile-card)

File Organization:

  • One component per file
  • Related components in same directory
  • Tests alongside components (ComponentName.test.js)
  • Shared utilities in /utils/ directory

Pull Request Process

  1. Create feature branch from main
  2. Implement changes with clear commits
  3. Test thoroughly across browsers
  4. Update documentation if needed
  5. Submit PR with description of changes
  6. Address review feedback
  7. Merge after approval

Code Review Checklist

  • Code follows style guidelines
  • No console.log statements in production code
  • Error handling implemented
  • Mobile responsive
  • Accessibility considered
  • Comments added for complex logic
  • No unnecessary dependencies added

Resources and References

Documentation

Design Resources

  • Color Palette: Tailwind CSS colors as reference
  • Typography: Inter font family
  • Icons: Remix Icon set

Related Files

Contact and Support

For questions, issues, or contributions:

  • Review this documentation thoroughly
  • Check existing issues in version control
  • Consult API_CONTRACT.md for data structure
  • Reference code comments in components

Version History

v1.0.0 (Current)

  • Initial release with core features
  • QR code scanning interface (UI)
  • Batch verification system
  • Dashboard with aggregate data
  • Anonymous symptom reporting
  • Static JSON data architecture
  • Mobile-responsive design