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Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

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Testing Node.JS applications using Mocha

Mocha is a unittest framework for Node. In this document, we explain how you can test your javascript code and also your HTTP servers.

Installing Mocha

Use npm to install Mocha:

npm install mocha

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import com.twitter.finagle.http.path._
import com.twitter.finagle.http.service.RoutingService
import com.twitter.finagle.http.{Request, Response, RichHttp, Http}
import com.twitter.finagle.{Service, SimpleFilter}
import org.jboss.netty.handler.codec.http._
import org.jboss.netty.handler.codec.http.HttpResponseStatus._
import org.jboss.netty.handler.codec.http.HttpVersion.HTTP_1_1
import org.jboss.netty.buffer.ChannelBuffers.copiedBuffer
import org.jboss.netty.util.CharsetUtil.UTF_8
import com.twitter.util.Future

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/*
 *
 * Copyright 2015, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright

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MongoDB + NodeJS Tutorial

Prerequisites

• You have node.js and npm installed on your machine.
• If you use CDF:
  • Use bash or zsh as your shell.
  • Make sure npm installs packages locally as you don't have root permissions. To do so, you can edit ~/.npmrc and add the following line:
    • prefix=$NODE_HOME
  • $NODE_HOME is the directory in which you have installed node.js.

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var http = require('http');

var hello = function(req, res) {
  res.writeHead(200, {'Content-Type': 'text/html'});
  res.write('Hello! <br />');
  res.write('<br />' +
            'URL:' + req.url + '<br />' +
            'Method:' + req.method + '<br />');
};

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class RoutingService[REQUEST <: Request, RESPONSE](
     val routes: PartialFunction[Request, Service[REQUEST, RESPONSE]])
  extends Service[REQUEST, RESPONSE] {

  protected[this] val requestToService = routes

  def apply(request: REQUEST): Future[RESPONSE] = {
    val service = requestToService(request)
    service(request)
  }

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// You create the trait.
trait JavaScriptCompilerComponent {
  def compiler: JavaScriptCompiler

  // You add the abstract method to get all javascript files.
  def jsFiles: Seq[Source]

  def getCompiledJavaScript = compiler.compile(jsFiles)

  trait JavaScriptCompiler {

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// You create the trait.
trait JavaScriptCompilerComponent {
  def compiler: JavaScriptCompiler

  trait JavaScriptCompiler {
    def compile(files: Seq[Source]): String
  }
}

// You implement it.

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// Create the main listener.
lis, err := net.Listen("tcp", ":23456")
if err != nil {
	log.Fatal(err)
}

// Create a cmux.
mux := cmux.New(lis)

// Match connections in order: