This repo is being developed for the forthcoming "Single Page Apps on Divided Hosts".

A single page application divides an application's work up by putting more of it on the user's computer and less on the server. Such an app is started with the loading of one page. Javascript in that page then interacts with the user and the server, morphing the page as necessary. The resulting application can require less network traffic and enable more efficient servers than a traditional application.

"Divided Hosts" means that the single page and other static material is placed on one server and the dynamic server responders are placed on a second server. Each server can be optimized for what it does.

As with traditional applications, a database engine is typically included on a private network with the server or, perhaps, on the same machine as the server.

Hence "Single Page Apps on Divided Hosts" describes deployments on two hosts in which one host serves files and the other responds to requests from the browser. Both hosts exist in the cloud and can be scaled up as necessary. In our version browser and server communicate by sending objects back and forth as in this diagram

Browser   <-->   Python Server   <-->   Mongo Database
          AJAX                 Pymongo
        (jQuery)             

Those of us who build relatively small and low volume applications like to work entirely on our own computers. Hence the need for a development process that lets us create on one machine and then deploy to the cloud.

Although scaling applications is easy on such hosts as Firebase, Heroku, and Openshift, a flourshing small application is likely to consume more resources than is available without charge on those servers. For such an application the inexpensive approach may be to give everything to the NearlyFreeSpeech host.

"Single Page Apps on Divided Hosts" explains how to build applications that can be deployed interchangeably among these platforms

YOS Your Own Server (static and dynamic)

NFS NearlyFreeSpeech (static and dynamic)

FH Firebase (static) + Heroku (dynamic)

FA Firebase (static) + Openshift (dynamic)

Python 2.7.x has been chosen to run the dynamic serving, also to run the server on YOS. The Mongo 3.2.x as a supportive database.

This repo will contain progressively sophisticated examples. If you want to follow the development of this repo check back now and then. If you have the time and ability to look at, and make constructive comments about, "Single Page Apps on Divided Hosts" as it is being written, then contact me through the email address at my web site. When everything is finished this ReadMe will change accordingly.