A file to allow running multiple TiddlyWikis as seperate folders of an Express JS application

index.js

#!/usr/bin/env node

var url = require('url');
var path = require('path');

$tw = require("./boot/boot.js").TiddlyWiki();
$tw.boot.argv = [path.join( __dirname, 'data', 'marketing')];
$tw.boot.boot();

var serverCommand = require('./core/modules/commands/server.js').Command;
var command = new serverCommand([], { wiki: $tw.wiki });
var server = command.server;

server.set({
	rootTiddler: "$:/core/save/all",
	renderType: "text/plain",
	serveType: "text/html",
	username: "",
	password: "",
	pathprefix: "/tw5"
});
module.exports = function(request, response, next){
	// Compose the state object
	var state = {};
	state.wiki = $tw.wiki;
	state.server = server;
	state.urlInfo = url.parse(request.url);
	//console.log($tw.wiki);
	// Find the route that matches this path
	var route = server.findMatchingRoute(request,state);
	// Check for the username and password if we've got one
	var username = server.get("username"),
		password = server.get("password");
	if(username && password) {
		// Check they match
		if(server.checkCredentials(request,username,password) !== "ALLOWED") {
			var servername = state.wiki.getTiddlerText("$:/SiteTitle") || "TiddlyWiki5";
			response.writeHead(401,"Authentication required",{
				"WWW-Authenticate": 'Basic realm="Please provide your username and password to login to ' + servername + '"'
			});
			response.end();
			return;
		}
	}
	// Return a 404 if we didn't find a route
	if(!route) {
		response.writeHead(404);
		response.end();
		return;
	}
	// Set the encoding for the incoming request
	// TODO: Presumably this would need tweaking if we supported PUTting binary tiddlers
	request.setEncoding("utf8");
	// Dispatch the appropriate method
	switch(request.method) {
		case "GET": // Intentional fall-through
		case "DELETE":
			route.handler(request,response,state);
			break;
		case "PUT":
			var data = "";
			request.on("data",function(chunk) {
				data += chunk.toString();
			});
			request.on("end",function() {
				state.data = data;
				route.handler(request,response,state);
			});
			break;
	}

};