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despia-native
despia-native/index.js

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Readme

Despia SDK

CRITICAL: ALWAYS USE THE REAL SDK

NEVER mock or simulate the Despia SDK. ALWAYS install and use the real package:

npm install despia-native

Why?

The SDK handles critical native bridge communication
Mocking will break ALL native features
Your app will NOT work on actual devices without the real SDK
There is NO valid reason to mock this in any scenario

If you see any tutorial, example, or code that creates a fake despia function - it's WRONG.

JavaScript SDK for Despia - Transform your web app into a native iOS & Android app without writing Swift or Kotlin. This npm package provides command queuing and variable watching for seamless integration with Despia's GPU-accelerated native runtime, enabling access to 25+ device APIs through simple JavaScript calls.

Import: import despia from 'despia-native'; (default export, not destructured)

IMPORTANT: This SDK package is REQUIRED for TypeScript, React, Vue, and other modern frameworks! While window.despia = "" works in vanilla JavaScript, this package provides type safety, command queuing, and variable watching for professional development environments.

About Despia

Despia bridges the gap between web and native mobile development. Build your app using the web technologies you already know, then deploy it as a truly native application to the App Store and Google Play - complete with hardware acceleration, offline support, and deep OS integration.

Our visual editor allows you to configure native widgets, shortcuts, and dynamic app behaviors without touching Xcode or Android Studio. Ship to both app stores with one-click deployment, automatic CI/CD pipelines, and over-the-air updates. Export clean, human-readable Swift and Kotlin source code anytime - you own everything, no vendor lock-in.

Go from web app to app store in a weekend - with full native capabilities.

Key Features:

Universal Framework Support - Works with React, Vue, Angular, Svelte, vanilla JS, or any web framework
Visual Configuration - Set up native features through an intuitive interface
Zero Native Coding - Access device APIs without writing Swift or Kotlin
Source Code Export - Get complete Xcode and Android Studio projects you can modify
True Ownership - Full access to generated code, no restrictions
One-Click Publishing - Direct deployment to App Store & Google Play
Automated Pipeline - Built-in CI/CD with code signing and provisioning
OTA Updates - Push updates instantly without app store review
Performance - 60fps GPU-accelerated rendering
Device API Access - NFC, HealthKit, Siri, RevenueCat, and 20+ more
Single Codebase - Maintain one project for iOS, Android, and web

Native Device Features:

App Links & Deep Linking - Universal links and app-to-app communication
Widgets & App Clips - Home screen widgets and instant app experiences
In-App Purchases - RevenueCat integration for subscriptions and payments
Push Notifications - Local and remote notifications with rich media
Camera & Media - Camera access, photo library, and file management
Biometric Authentication - Face ID, Touch ID, and fingerprint
Location Services - Foreground and background GPS tracking
Contacts - Address book access with proper permissions
Haptic Feedback - Tactile responses for user interactions
App Analytics - Version tracking, bundle IDs, device identifiers
Screenshots - Programmatic screen capture
Status Bar - Dynamic styling and visibility control
Privacy Controls - IDFA tracking and permission management
Share Sheets - Native sharing UI
UI Controls - Loading indicators, navigation bars, dynamic layouts
Plus 8+ additional native capabilities

Installation (REQUIRED - NO EXCEPTIONS)

npm install despia-native

This is NOT optional. Your app will NOT work without this package.

Do not attempt to:

Write your own version
Copy/paste a mock implementation
Use window.despia directly in frameworks
Create a "simplified" version

The real SDK is required for ANY Despia functionality to work.

NEVER DO THIS - YOUR APP WILL NOT WORK

// WRONG - This breaks everything
const despia = (command) => {
  console.log('Command:', command);
  // This does NOTHING on real devices
};

// WRONG - This also breaks everything  
const mockDespia = () => { /* ... */ };

// WRONG - Don't create your own version
window.despia = 'somecommand://';

ALWAYS DO THIS - THE ONLY CORRECT WAY

// CORRECT - The ONLY way to use Despia
import despia from 'despia-native';

// Now your commands actually work
despia('lighthaptic://');  // Device actually vibrates

Getting Started

Step 1: Import Despia SDK

IMPORTANT: Always import as despia (default export), NOT as {Commands} or destructured imports!

// CORRECT - ES6/ES2015 modules (default import)
import despia from 'despia-native';

// CORRECT - CommonJS
const despia = require('despia-native');

// CORRECT - Browser (if using UMD build)
// <script src="despia-native.js"></script>
// despia is available globally

// WRONG - Don't do this!
// import { Commands } from 'despia-native';
// import { despia } from 'despia-native';

The SDK exports a single function called despia as the default export.

Step 2: Use Native Features

// Simple commands (no response needed)
despia('lighthaptic://');           // Light haptic feedback
despia('takescreenshot://');        // Take screenshot
despia('spinneron://');             // Show loading spinner

// Commands that return data (use await)
const appInfo = await despia('getappversion://', ['versionNumber', 'bundleNumber']);
console.log(appInfo); // { versionNumber: '1.0.0', bundleNumber: '123' }

const contacts = await despia('readcontacts://', ['contacts']);
console.log(contacts); // { contacts: [...] }

Step 3: Handle Responses

// For commands that set variables, watch for them
const result = await despia('get-uuid://', ['uuid']);
console.log('Device UUID:', result.uuid);

// For commands with no response, just call them
despia('lighthaptic://');
despia('takescreenshot://');

Quick Examples

// Haptic feedback
despia('lighthaptic://');    // Light vibration
despia('heavyhaptic://');    // Heavy vibration
despia('successhaptic://');  // Success vibration

// App information
const appInfo = await despia('getappversion://', ['versionNumber', 'bundleNumber']);
const deviceId = await despia('get-uuid://', ['uuid']);

// UI controls
despia('spinneron://');      // Show loading
despia('spinneroff://');     // Hide loading
despia('hidebars://on');     // Hide status bar

// Screenshots and sharing
despia('takescreenshot://');
despia('shareapp://message?=Hello&url=https://myapp.com');

Common Import Issues

If you get errors like "Commands is not a function" or "despia is not defined":

// WRONG - This will cause errors
import { Commands } from 'despia-native';
import { despia } from 'despia-native';

// CORRECT - Always use default import
import despia from 'despia-native';

// Now you can use it
despia('lighthaptic://');

The package exports a single function as the default export, not named exports.

When to Use This SDK Package

Vanilla JavaScript (works without this package)

// This WORKS in vanilla JavaScript:
window.despia = 'lighthaptic://';
window.despia = 'getappversion://';

Vanilla JS is fine for simple cases, but lacks:

TypeScript Support - No type definitions or autocomplete
Command Queuing - Commands may be lost or executed out of order
Variable Watching - Can't wait for responses from native commands
Error Handling - No timeout or error management
Type Safety - No validation or IntelliSense

Modern Frameworks Need This Package

// This WON'T work in TypeScript, React, Vue, etc.:
window.despia = 'lighthaptic://';  // TypeScript errors, no type safety
window.despia = 'getappversion://'; // No command queuing, no variable watching

Modern Frameworks (TypeScript, React, Vue, etc.)

// This WORKS perfectly in modern frameworks:
import despia from 'despia-native';

despia('lighthaptic://');  // Type-safe, queued, with error handling
const result = await despia('getappversion://', ['versionNumber']); // Variable watching

Benefits of using this SDK:

TypeScript Support - Full type definitions and autocomplete
Command Queuing - Sequential execution, no lost commands
Variable Watching - Automatic waiting for native responses
Error Handling - Timeouts, error management, debugging
Type Safety - Validated commands, autocomplete, IntelliSense

This package is REQUIRED for TypeScript, React, Vue, Angular, and other modern frameworks.

No Exceptions - Always Use Real SDK

Q: What if I'm just testing locally? A: Use the real SDK. It won't work outside the native runtime, but you can set up callbacks for when user agent doesn't include "despia".

Q: What if I'm making a demo? A: Use the real SDK. Set up fallbacks for browsers without Despia runtime.

Q: What if I'm writing unit tests? A: Use the real SDK. It won't work in test environments, but you can handle the missing runtime gracefully.

Q: What if I'm developing without a device? A: Use the real SDK. It won't work outside native runtime, but you can detect and handle this case.

Q: What if I'm using AI to generate code? A: Tell the AI to use the real SDK. Never accept mock implementations.

There is NEVER a valid reason to mock this SDK.

Handling Non-Despia Environments

The SDK won't work outside the Despia native runtime, but you can detect and handle this:

import despia from 'despia-native';

// Check if running in Despia native runtime
if (navigator.userAgent.includes('despia')) {
  // Use Despia native features
  despia('lighthaptic://');
  const appInfo = await despia('getappversion://', ['versionNumber']);
} else {
  // Handle non-Despia environment (browser, development, etc.)
  console.log('Running outside Despia runtime - native features unavailable');
  // Provide fallback behavior or show appropriate message
}

This is the correct way to handle different environments - use the real SDK with proper detection, never mock it.

Usage

Basic Despia Command Execution

import despia from 'despia-native';

// Execute a Despia protocol command (no response needed)
despia('lighthaptic://');

// Execute command and watch for response variables (await needed)
const result = await despia('getappversion://', ['versionNumber', 'bundleNumber']);
console.log(result); // { versionNumber: '1.0.0', bundleNumber: '123' }

Despia Command Examples

// Native Widgets
despia('widget://${svg}?refresh=${refresh_time}');

// RevenueCat In-App Purchases
despia('revenuecat://purchase?external_id=user_777&product=monthly_premium');

// Contact Permissions
despia('requestcontactpermission://');
const contacts = await despia('readcontacts://', ['contacts']);

// Background Location
despia('backgroundlocationon://');
// Use native browser geolocation API (not despia native runtime)
const watchId = navigator.geolocation.watchPosition(
  (position) => console.log('Location:', position),
  (error) => console.error('Location error:', error)
);
// To stop
despia('backgroundlocationoff://');
navigator.geolocation.clearWatch(watchId);

// Push Notifications
despia('registerpush://');
despia('sendlocalpushmsg://push.send?s=60&msg=Hello&!#New Message&!#https://myapp.com');
const oneSignalData = await despia('getonesignalplayerid://', ['onesignalplayerid']);

// Haptic Feedback
despia('lighthaptic://');
despia('heavyhaptic://');
despia('successhaptic://');
despia('warninghaptic://');
despia('errorhaptic://');

// App Information
const appInfo = await despia('getappversion://', ['versionNumber', 'bundleNumber']);
const deviceInfo = await despia('get-uuid://', ['uuid']);

// Screenshots and Scanning
despia('takescreenshot://');
despia('scanningmode://auto');
despia('scanningmode://on');
despia('scanningmode://off');

// Store and Location
const storeData = await despia('getstorelocation://', ['storeLocation']);

// Image and File Operations
despia('savethisimage://?url=${image_url}');
despia('file://${file_url}');

// App Control
despia('reset://');
const trackingData = await despia('user-disable-tracking://', ['trackingDisabled']);

// UI Controls
despia('spinneron://');
despia('spinneroff://');
despia('hidebars://on');
despia('hidebars://off');

// Sharing
despia('shareapp://message?=${message}&url=${url}');

// Status Bar Styling
despia('statusbarcolor://{255, 255, 255}');
despia('statusbartextcolor://{black}');

// Biometric Authentication
despia('bioauth://');

Direct Window Variable Access

// Access any window variable directly (useful for Despia response data)
const currentUser = despia.currentUser;
const deviceInfo = despia.deviceInfo;
const appVersion = despia.appVersion;

Advanced Usage with Variable Watching

// Watch multiple response variables
const appData = await despia('getappversion://', ['versionNumber', 'bundleNumber']);

// Chain multiple Despia commands
despia('lighthaptic://');
const appData2 = await despia('getappversion://', ['versionNumber', 'bundleNumber']);
despia('successhaptic://');

Background Location Workflow

Background location tracking requires a two-step process:

// Step 1: Enable native background location tracking via Despia
despia('backgroundlocationon://');

// Step 2: Use native browser geolocation API for actual tracking (not despia native runtime)
const watchId = navigator.geolocation.watchPosition(
  (position) => {
    console.log('Location update:', {
      latitude: position.coords.latitude,
      longitude: position.coords.longitude,
      accuracy: position.coords.accuracy,
      timestamp: position.timestamp
    });
  },
  (error) => {
    console.error('Location error:', error);
  },
  {
    enableHighAccuracy: true,
    timeout: 10000,
    maximumAge: 60000
  }
);

// To stop tracking:
// Step 1: Disable native background tracking via Despia
despia('backgroundlocationoff://');
// Step 2: Clear browser geolocation watch (native API)
navigator.geolocation.clearWatch(watchId);

Contact Access Workflow

// Step 1: Request contact permission
despia('requestcontactpermission://');

// Step 2: Read contacts after permission granted
const contactData = await despia('readcontacts://', ['contacts']);
console.log('Contacts:', contactData.contacts);

Haptic Feedback

All haptic feedback commands have no response - they provide immediate tactile feedback:

// Basic haptic feedback
despia('lighthaptic://');    // Light haptic feedback - subtle vibration
despia('heavyhaptic://');    // Heavy haptic feedback - strong vibration

// Contextual haptic feedback
despia('successhaptic://');  // Success haptic feedback - positive confirmation
despia('warninghaptic://');  // Warning haptic feedback - attention alert
despia('errorhaptic://');    // Error haptic feedback - negative feedback

// Use cases:
// - Button press feedback (light/heavy)
// - Success notifications (successhaptic)
// - Warning alerts (warninghaptic)
// - Error feedback (errorhaptic)
// - UI interaction confirmation

Biometric Authentication

Biometric authentication requires setting up callback functions before running the command:

// Step 1: Set up the biometric authentication SDK
if (!document.getElementById("bioauth-sdk")) {
    const script = document.createElement("script")
    script.id = "bioauth-sdk"
    script.type = "text/javascript"
    script.textContent = `
        function onBioAuthSuccess() {
            window.bioauthSuccess()
        }
        function onBioAuthFailure(errorCode, errorMessage) {
            window.bioauthFailure(errorCode, errorMessage)
        }
        function onBioAuthUnavailable() {
            window.bioauthUnavailable()
        }
    `
    document.head.appendChild(script)
}

// Step 2: Define your callback functions
window.bioauthSuccess = function() {
    if (navigator.userAgent.includes("despia")) {
        console.log("Biometric authentication successful");
        // Handle successful authentication
        // Redirect user, unlock features, etc.
    }
}

window.bioauthFailure = function(errorCode, errorMessage) {
    if (navigator.userAgent.includes("despia")) {
        console.log("Biometric authentication failed:", errorCode, errorMessage);
        // Handle authentication failure
        // Show error message, fallback to password, etc.
    }
}

window.bioauthUnavailable = function() {
    if (navigator.userAgent.includes("despia")) {
        console.log("Biometric authentication unavailable");
        // Handle when biometric auth is not available
        // Fallback to alternative authentication method
    }
}

// Step 3: Trigger biometric authentication
despia('bioauth://');

App Information & Device Data

// Get app version information
const appInfo = await despia('getappversion://', ['versionNumber', 'bundleNumber']);
console.log('App Version:', appInfo.versionNumber);
console.log('Bundle Number:', appInfo.bundleNumber);

// Get device UUID (native device ID)
const deviceData = await despia('get-uuid://', ['uuid']);
console.log('Device UUID:', deviceData.uuid);

// Get store location
const storeData = await despia('getstorelocation://', ['storeLocation']);
console.log('Store Location:', storeData.storeLocation);

// Check tracking permission
const trackingData = await despia('user-disable-tracking://', ['trackingDisabled']);
console.log('Tracking Disabled:', trackingData.trackingDisabled);

UI Controls & Styling

// Loading spinner controls
await despia('spinneron://');   // Show loading spinner
await despia('spinneroff://');  // Hide loading spinner

// Full screen mode
await despia('hidebars://on');  // Hide status bar (full screen)
await despia('hidebars://off'); // Show status bar

// Status bar styling
await despia('statusbarcolor://{255, 255, 255}');     // Set status bar background color (RGB)
await despia('statusbartextcolor://{black}');         // Set status bar text color (black/white)

File & Media Operations

// Take screenshot (saves to device)
await despia('takescreenshot://');

// Save image from URL
await despia('savethisimage://?url=https://example.com/image.jpg');

// Download file from URL
await despia('file://https://example.com/document.pdf');

// Share app with message and URL
await despia('shareapp://message?=Check%20out%20this%20app&url=https://myapp.com');

Scanning Mode

// Control scanning mode
await despia('scanningmode://auto');  // Auto scanning mode
await despia('scanningmode://on');    // Enable scanning
await despia('scanningmode://off');   // Disable scanning

App Reset

// Reset app (use with caution)
await despia('reset://');

Native Safe Area

Access native safe area insets via CSS custom properties:

/* Use native safe area insets in your CSS */
.my-element {
  padding-top: var(--safe-area-top);
  padding-bottom: var(--safe-area-bottom);
}

/* Full height with safe area consideration */
.full-height {
  height: calc(100vh - var(--safe-area-top) - var(--safe-area-bottom));
}

Note: Despia only supports top and bottom safe area insets. Left and right safe area variables are not available.

These CSS variables are automatically provided by the Despia native runtime and represent the device's safe area insets (notches, home indicators, etc.).

API Reference

`despia(command, watch?)`

command (string): The Despia protocol command (e.g., 'lighthaptic://')
watch (string[], optional): Array of variable names to watch for in the response

Returns a Promise that resolves when all watched variables are available:

Single variable: 5-second timeout with simple observation
Multiple variables: Uses VariableTracker with 5-minute auto-cleanup

Direct Property Access

Access any window variable directly through the despia object:

despia.variableName // Equivalent to window.variableName

Despia Protocol Format

Despia uses a simple protocol format for all native integrations:

feature://action?parameters

Examples:

lighthaptic://
getappversion://
revenuecat://purchase?external_id=user_777&product=monthly_premium
requestcontactpermission://
savethisimage://?url=https://example.com/image.jpg

Available Despia Features

Your app can access these native features:

Native Widgets - Create widgets with SVG and refresh time
In-App Purchases - RevenueCat integration with external user IDs
Contact Access - Request permissions and read contacts
Background Location - Native tracking with browser geolocation API
Push Notifications - OneSignal integration and local push messages
Haptic Feedback - Light, heavy, success, warning, and error feedback
App Information - Version numbers, bundle numbers, device UUID
Screenshots - Take device screenshots
Scanning Mode - Auto, on, and off scanning controls
Store Location - Get store location data
File Operations - Save images and download files
App Control - Reset app and disable tracking
UI Controls - Loading spinners and full screen mode
Sharing - Share app with custom messages and URLs
Status Bar - Control colors and text colors
Biometric Authentication - Native biometric auth with callbacks

TypeScript Support

Full TypeScript definitions are included:

import despia from 'despia-native';

// Type-safe usage with Despia commands
const result: { versionNumber: string; bundleNumber: string } = await despia(
  'getappversion://', 
  ['versionNumber', 'bundleNumber']
);

// Direct property access
const deviceInfo: any = despia.deviceInfo;

Integration with Despia

Despia operates through a streamlined protocol handler system, allowing you to invoke native features using the global window.despia object. This npm package is the JavaScript SDK that makes your web app communicate with Despia's native runtime. The SDK provides:

Command Queuing - Sequential execution of Despia commands via window.despia setter
Variable Watching - Async monitoring of response variables
Hybrid Framework Compatible - Works with Despia's hybrid app framework
Direct Access - Proxy-based access to window variables

How It Works

Despia's protocol handler system eliminates the need for complex libraries or dependencies, making it compatible across various frameworks and platforms. The SDK uses the setter pattern to execute commands:

// When you call:
despia('lighthaptic://');

// It internally executes:
window.despia = 'lighthaptic://';

This streamlined approach triggers Despia's native runtime to handle the native command, providing seamless access to device capabilities directly from your web codebase.

License

MIT