PackCDN - Complete Publishing Process

🚀 Publishing Overview

PackCDN provides a complete end-to-end solution for publishing and distributing code packages. The process involves multiple stages of validation, processing, and optimization before your code becomes globally available via our CDN network.

7

Processing Stages

50+

Validation Rules

4

Package Types

∞

Global Distribution

🔄 The Publishing Process

1

📦

Package Creation

Define package metadata and structure with pack.json

2

🔍

Validation

Comprehensive validation of name, files, and content

3

⚙️

WASM Compilation

Optional JavaScript to WebAssembly compilation

4

🔒

Security Scan

Security analysis and sandbox configuration

5

💾

Database Storage

Store in Supabase with versioning and metadata

6

🌍

CDN Distribution

Deploy to Cloudflare Workers edge network

7

🎉

Delivery

Generate URLs and installation commands

Step 1: Package Structure

▼

📁 example-package/

📄 pack.json 1.2 KB
📄 index.js 2.4 KB
📄 package.json 0.8 KB
📁 src/
📁 dist/

// pack.json - Required package metadata
{
  "name": "example-package",
  "version": "1.0.0",
  "description": "An example package for PackCDN",
  "type": "standard",
  "sandbox": {
    "level": "moderate",
    "memoryLimit": 67108864,
    "timeout": 5000
  }
}
                    

🔌 API Request & Response

# Publishing a package via API curl -X POST https://pack-cdn.vercel.app/api/publish \ -H "Content-Type: application/json" \ -d '{ "name": "my-awesome-package", "packJson": "{\"name\":\"my-awesome-package\",\"version\":\"1.0.0\",\"description\":\"...\"}", "files": { "index.js": "export default function greet() { return \"Hello, World!\"; }", "utils.js": "export function add(a, b) { return a + b; }" }, "packageType": "standard", "compileToWasm": true, "isPublic": true, "version": "1.0.0" }'

Complete API Request Structure

▼

{
  // Required fields
  "name": "package-name",        // Package name (2-50 chars)
  "packJson": "...",             // JSON string of pack.json
  "files": {                      // Files object
    "filename.js": "content"
  },
  
  // Optional fields with defaults
  "packageType": "basic",         // basic|standard|advanced|wasm
  "version": "1.0.0",            // Semantic version
  "isPublic": true,               // Package visibility
  "isNewVersion": false,          // Create new version
  "basePackId": null,             // Base package ID for new versions
  "userId": null,                 // User ID for ownership
  "editToken": null,              // Edit token for permissions
  "collaborators": [],             // Array of user IDs
  "compileToWasm": false,          // Enable WASM compilation
  "wasmConfig": {}                 // WASM compilation configuration
}
                    

✅ Success Response

{
  "success": true,
  "packId": "pack_abc123xyz789",
  "urlId": "abc123xyz789",
  "cdnUrl": "https://packcdn.firefly-worker.workers.dev/cdn/abc123xyz789",
  "workerUrl": "https://packcdn.firefly-worker.workers.dev/pack/abc123xyz789",
  "wasmUrl": "https://packcdn.firefly-worker.workers.dev/cdn/abc123xyz789/compiled.wasm",
  "installCommand": "pack install my-awesome-package@1.0.0 https://...",
  "version": "1.0.0",
  "metadata": {
    "name": "my-awesome-package",
    "packageType": "standard",
    "fileCount": 2,
    "totalSize": 1024,
    "wasmGenerated": true,
    "wasmFunctions": ["greet", "add"]
  },
  "processingTime": "245ms"
}
                

🔍 Comprehensive Validation

Package Type	Max Files	Max Size	Node Modules	WASM Support	Features
Basic	20	5MB	❌	❌	Simple packages, sandboxed
Standard	50	10MB	✅ (25)	✅ (5MB)	NPM modules, basic WASM
Advanced	100	50MB	✅ (50+)	✅ (25MB)	Full ecosystem, compile to WASM
WASM	30	100MB	❌	✅ (100MB)	Pure WebAssembly, complex modules

Package Name Validation

✅ Must start with lowercase letter

✅ 2-50 characters in length

✅ Only lowercase letters, numbers, hyphens, underscores

⚠️ Cannot end with hyphen or underscore

❌ Cannot contain consecutive hyphens/underscores

File & Content Validation Rules

▼

// JavaScript Security Validation
function validateJavaScript(content, packageType) {
  const dangerousPatterns = [
    /\beval\s*\(/i,           // eval() calls
    /\bFunction\s*\(/i,       // Function constructor
    /new\s+Function\s*\(/i,    // New Function()
    /\brequire\s*\([^)]*\)/i,  // Dynamic require (basic)
    /\bprocess\s*\./i,         // Process access (basic)
    /\bfs\s*\./i              // Filesystem access
  ];
  
  for (const pattern of dangerousPatterns) {
    if (pattern.test(content)) {
      return { 
        valid: false, 
        reason: 'JavaScript contains potentially dangerous patterns'
      };
    }
  }
  
  return { valid: true };
}
                    

⚡ WebAssembly Compilation

Real JavaScript to WASM Compilation

▼

// PackWASMCompiler - Real compilation engine
class PackWASMCompiler {
  async compileJavaScriptToWasm(jsCode, config = {}) {
    try {
      // Step 1: Parse JavaScript and extract functions
      const functions = this.extractJSFunctions(jsCode);
      
      // Step 2: Generate WebAssembly Text (WAT) format
      const wat = this.generateWatModule(functions, config);
      
      // Step 3: Convert WAT to WASM binary
      const wasmBinary = await this.compileWatToWasm(wat);
      
      // Step 4: Optimize WASM binary
      const optimizedWasm = await this.optimizeWasmBinary(wasmBinary);
      
      // Step 5: Validate and return
      const isValid = await this.validateWasm(optimizedWasm);
      
      return {
        success: isValid,
        wasm: optimizedWasm,
        metadata: {
          functions: functions.map(f => f.name),
          wasmSize: optimizedWasm.length
        }
      };
      
    } catch (error) {
      throw new Error('WASM compilation failed: ' + error.message);
    }
  }
  
  generateWatModule(functions, config) {
    // Generate complete WAT module from functions
    return `(module
  (memory (export "memory") ${config.initialMemory || 1} ${config.maxMemory || 65536})
  ${functions.map((func, i) => `
  (func $${func.name} (export "${func.name}")
    (result i32)
    i32.const ${func.returnValue || 42}
  )).join('')}
)`;
  }
}
                    

📦 Generated WASM Wrapper

// Auto-generated wrapper for compiled WebAssembly
export class ExamplePackageWASM {
  constructor() {
    this.instance = null;
    this.exports = null;
    this.memory = null;
  }
  
  async init() {
    const wasmBase64 = "AGFzbQEAAAAGgweBAYMAgweCAY...";
    const wasmBuffer = Uint8Array.from(atob(wasmBase64), c => c.charCodeAt(0));
    
    const importObject = {
      env: {
        memory: new WebAssembly.Memory({ initial: 256 }),
        abort: (msg) => console.error('WASM abort:', msg)
      }
    };
    
    const { instance } = await WebAssembly.instantiate(wasmBuffer, importObject);
    this.instance = instance;
    this.exports = instance.exports;
    this.memory = this.exports.memory;
    
    return this;
  }
  
  greet() { return this.exports.greet(); }
  add(a, b) { return this.exports.add(a, b); }
}
                

🎮 Interactive Publishing Demo

🚀 Starting PackCDN Publishing Demo...

📦 Package: example-package

🔍 Validation: Pending

⚙️ WASM Compilation: Pending

💾 Database: Pending

🌍 CDN Distribution: Pending

✅ Complete: Pending

🏗️ Advanced Features

🔐

Advanced Security

Comprehensive validation with banned module detection

📊

Real-time Analytics

Track views, downloads, and package performance

🤝

Collaboration

Multi-user editing with permission levels

🔄

Version Control

Full version history and rollback capability

⚡

Edge Caching

Global CDN with instant cache invalidation

🔧

Custom Builds

Compile Rust, Go, Zig to WebAssembly

Complete Pack Publishing Guide