Edge-Trigger

Edge-Trigger is a powerful library that transforms any Node.js function into a deploy-ready bundle for various edge platforms with a single command.

Quick Start

Get up and running in minutes.

1. Installation

Install Edge-Trigger as a dev dependency in your project:

npm install edge-trigger --save-dev

2. Create your function

Create a file (e.g., my-function.js) and write your Node.js function:

// my-function.js

// Your function can be async or sync
async function handler(event) {
  const { request } = event;
  const url = new URL(request.url);
  
  // Your function logic here
  return new Response(`Hello from ${url.pathname}!`);
}

module.exports = { handler };

3. Create a build script

Create a build script (e.g., build.js) to bundle your function for your target platform:

// build.js
const { build } = require('edge-trigger');
const { handler } = require('./my-function');

// Target 'cloudflare', 'vercel', or 'node'
const platform = 'cloudflare'; 

build({
  func: handler,
  platform,
  // Optional: specify an output directory
  // outDir: 'dist' 
});

4. Run the build

Execute the build script:

node build.js

This will create a bundled file in the dist directory, ready for deployment to your chosen platform.

Example Usage

Here's a more detailed example demonstrating how to use Edge-Trigger to create bundles for different platforms.

const { build } = require('edge-trigger');

// Your core application logic
const myFunction = async (event) => {
  const body = await event.request.json();
  return new Response(JSON.stringify({ message: "Hello from the edge!", ...body }), {
    headers: { 'Content-Type': 'application/json' },
  });
};

// Build for different platforms
build({ func: myFunction, platform: 'cloudflare' });
build({ func: myFunction, platform: 'vercel' });
build({ func: myFunction, platform: 'node' });

Supported Platforms

• Cloudflare Workers (cloudflare)
• Vercel Edge Functions (vercel)
• Node.js (node)

How It Works

Edge-Trigger leverages the power of esbuild to bundle your Node.js function and its dependencies into a single, efficient file. It creates a temporary entry point, builds the bundle, and then cleans up, leaving you with a clean, deployable artifact. This approach ensures that your function is optimized for the specific requirements of each edge platform.