I once explained in great detail why HTML is the worst thing that ever happened to the Internet. In that episode I was a bit disingenuous — I also snuck in flaws with the protocol that delivers most of that HTML rubbish to your computer: HTTP.
Finally, finally, twenty years later than necessary, the tools are available to make Web applications work like all the other apps on your computer. (If you’re willing to set down your browser, World of Warcraft and its predecessors have been doing this for a long time now. But finally we can have good application design through the browser as well.)
While the primary benefit of this revolution is for the engineers making the apps (whom you as a user have to pay eventually), there are tangible benefits for Joe Websurfer as well. Mainly, things will work better and be snappier. You will curse at your browser about 30% less. (That number brought to you courtesy of the dark place I pulled it from.)
I work in a blissful world where my stuff doesn’t have to work on older browsers, and especially not on Internet Explorer. That means what might be ‘bleeding edge’ for most Web developers is merely ‘leading edge’ for me. I’m starting a new Web application, and it won’t use HTTP. It won’t even use AJAX.
Quick description of HTTP:
Your browser asks the server for something. The server gives it to you, then forgets you ever existed. This is especially crazy when you want your connection to be secure (https), because you have to negotiate encryption keys every damn time. That’s huge overhead when all you want is the user’s middle initial.
And what if something changes on the server that the page showing in the browser should know about? Tough shit, pal. Unless the browser specifically asks for updates, it will never know. Say that item in your shopping cart isn’t available anymore — someone else snapped up the last one. You won’t know your order is obsolete until you hit the ‘check out’ button. The server cannot send messages to the page running in your browser when conditions warrant.
Lots of work has gone into mitigating what a pain in the ass that all is, but the most obvious solution is don’t do it that way. Keep your encrypted connection open, have each side listening for messages from the other, and off you go. The security layer in my new app is so much simpler (and therefore sturdier) that I’m going to save days of development. (Those days saved will go straight to the bottom line at my company, since I’m an operating expense. The effect of my app will also go straight to the bottom line, as I save other people time and energy. Better yet, the people who will be made more efficient are dedicated to making the company more efficient. Those days of development time saved go through three stages of gain. Shareholders, rejoice.)
So, that makes me happy. Web Sockets, event-driven servers, a chance to create the Missing Middleware to make the tools out there fly. Bindings over the wire.
Of course, I’m not building it all from scratch; I’m using and improving tools created by those who have gone before me into this ‘software working right’ revolution. It means picking up a whole toolbox at one time, from database to server to client library to extensions of all of the above. There are times while I’m trying to put it all together that it feels like my head is going to explode. In a good way.
But boy, the difference a good book can make. In technical writing, there are two kinds of documentation: tutorial and reference. Mostly I gravitate toward reference materials: I have a specific question and I want to get a specific answer. References are raw information, organized to allow you to get to the nugget you need. Tutorials are training documents; they take you through a sequence to help you build complete understanding of a system.
There are many technical documents that try to be both, or don’t know which they are. We call those docs “shitty”. Then there are videos. SPARE ME THE FUCKING VIDEOS. Videos as a reference: completely worthless; videos as a tutorial: rarely adequate – what was that again?
(I’d be interested to hear from my formally-trainied tech writer pals about my above assertions.)
Anyway, On the client side I’m using a library called Backbone, and on top of that Marionette. I like them, but I was starting to get lost in the weeds. The reference material is pretty good, but getting an overall understanding of how the pieces worked together was slow and frustrating. Too many new ideas at once.
So I found a book endorsed by The Guy Who Made Marionette (yeah, The Guy. One guy, having a huge impact on the next generation of Internet applications. Could have been anyone, but there had to be The Guy.) that not only puts the pieces together, but introduces best practices and the reasoning behind them along the way. It may well be the best tutorial-style documentation I’ve run across in this industry. So, hats off for Backbone.Marionette.js: A Gentle Introduction. This book really helped me get my ducks in a row. My fastest learning curve since Big Nerd Ranch oh so very long ago.
So all that makes me a pretty happy geek. Lots to learn, Web applications built right, a new project with lots of creative freedom. And while I’m coming up to speed on the new tools, I already see gaps — the tools are young — including a potentially ground-breaking idea, that I will get to explore.
Can you believe they pay me to do this?