This is being renamed to autoserve.

Enable a webapp to get the optimal http implementation based on how it is deployed. Also provide a way to get the baseUrl of the deployment.

Ways one might deploy a node-based webapp:

• http
• node-fastcgi
• CGI (in the future just as proof of concept, please don’t use in production)
• Passenger

Usage

script.cgi:

#!/usr/bin/env node
'use strict';

const httpAutodetect = require('http-autodetect');

const app = function (req, res) {
    res.writeHead(200, { 'Content-Type': 'text/plain; charset=utf-8', });
    // It is recommended to use a framework like express to calculate
    // the host and protocol of your deployment. getBaseUrl() only
    // solves the path portion of the deployment.
    res.end(`Hello, World! I am deployed at https://${req.headers.host}${httpAutodetect.getBaseUrl(req)}`);
};

httpAutodetect(app);

Express Usage

You need extra middleware to get Express to respect getBaseUrl(). See express-http-autodetect for that or use this snippet:

#!/usr/bin/env node
'use strict';
const expressHttpAutodetect = require('express-http-autodetect');

// If you followed the Express-4 migration guide or used
// express-generator, your app definition will be its own
// CommonJS module.
const app = require('./app');

expressHttpAutodetect(app);

Note the Connect is not supported as it does not have the concept of managing baseUrl/mounting sub-apps. It only chains handlers and is missing the sort of routing handling that proper baseUrl handling requires.