I'm wondering if using Node.js (express.js) is the best option to go for a complete website. I've been using Rails + Node.js and am wondering if this is still the best option or if I should move completely to Node.js.
Are there websites built completely with node.js? I imagine it must lack many things Rails offers.
I imagine it must lack many things
Rails offers.
I gave a short list below but I would like to know what you could be missing and I think(almost certain) we can give you some alternatives on node.js.
Modules
node.js is getting pretty complete and I think you can run your entire site using only node.js using for example the following modules. I assume you know about npm. If not I really advice you to google for it and learn that. To search npm you can use http://search.npmjs.org:
web framework:
High performance, high class web
development for Node.js
https://github.com/visionmedia/express
Socket.IO aims to make realtime apps possible in every browser and mobile
device, blurring the differences
between the different transport
mechanisms.
https://github.com/learnboost/socket.io-node
I believe with these two web-frameworks you can create a lot of sites. For example express is a very powerfull web framework and supports a lot of cool things like:
session support.
a lot powerful template engines. I like Jade for example. You could also share these between client and server a lot of the times easily.
excellent routing.
just to name a few.
database:
Redis is an open source, advanced
key-value store. It is often referred
to as a data structure server since
keys can contain strings, hashes,
lists, sets and sorted sets.
https://github.com/mranney/node_redis
MongoDB (from "humongous") is a scalable, high-performance, open source,
document-oriented database.
Mongoose is a MongoDB object modeling tool designed to work in an
asychronous environment.
https://github.com/learnboost/mongoose/
With those two databases I think you should be able to accomplish most of your tasks. The nice thing is that Redis is extremely fast/simple advanced KV-store(dataset in memory/also supports VM) and supports replication while Mongodb is more completely(slower then redis) and also supports sharding.
authentication:
Authentication and authorization (password, facebook, & more) for your node.js Connect and Express apps.
https://github.com/bnoguchi/everyauth
Like I said previously you can get a long way with only these modules.
Express.js is more akin to Sinatra. They're simpler frameworks than rails.
Express's list of sites is fairly small http://expressjs.com/applications.html
So I think it's also good to look at Sinatra's list http://www.sinatrarb.com/wild.html
So to answer your questions in reverse order. Yes it lacks all the features of rails. Yes there are sites written completely in Express. And going to 100% Node.js might be the right decision for your site.
It depends on which features you'd miss and what performance you need.
I'm not sure, but I guess it's perfectly possible. I have built complete sites using plain server side javascript for years without problems. The advantage of node.js seems to be its event driven model and things like socket.io. I just started experimenting with it, I'll probably will try porting an existing site to node.js.
Here you can find a large list of sites built with node.js.
Finally, you may want to read: What it’s like building a real website in Node.js
Yes, as of now node.js lacks many (well, at least a few) things rails offers. Eventually the set of available node.js modules will collectively provide good alternatives to RoR across the board. Or at least different (and often more modern) approaches to the same fundamental problems. There are still some important things missing in the node.js ecosystem including a good ORM for postgresql (rails has ActiveRecord which is great) and a good DB schema management subsystem. Both of these do not exist in the node.js ecosystem as of this moment, but surely they will be there in due time. Rails has these down pat right now.
There are some tricks node.js has that RoR doesn't. Debugging in node.js is more seamless than RoR and express.js is more flexible. Express is the library approach (you tell it what to do) whereas rails is the framework approach (you fill out the boilerplate it creates for you). There are also some fantastic things like stylus and jade, which have equivalents in rails, but when you have a full app written in one language (either javascript or CoffeeScript, which I prefer) and everything is in a modern node.js/TJ Holowaychuck style, you get a level of cohesiveness that is really nice to work within.
The other thing to keep in mind is that while the list of available node.js modules is quite impressive, many of them are not as mature and battle-tested as their rails/django analogs. It's hit or miss, so beware.
Related
I come from a decade of experience with Java EE, SE and Java with Spring. If there's something that was drilled in me by myself and other fellow developers, was how to make use of design patterns, separation of responsibility, separating definition from implementation, interface segregation, etc. Also, we were always worried about testable code (unit testing and integration tests).
When I was learning Java, there wasn't a single book, magazine or website that didn't implemented things with those rules in mind, to the point of boredom. So we always new how things should be done from an architectural point of view when starting new stuff or maintaining code. With time, projects like Spring Boot and JBoss Seams started to give out of the box a basic project layout witch you simply followed to success(or at least you should...).
Now that I delve deep in Node.js, I miss that so much. There seems to be only a handful of people on the web worried about it and trying to teach newcomers how to write good backend code with Node.js.
People teach you how to boot express and put all of your code (database, logging, mailing, error handling and so on) inside an express route.
Of course, when I started learning Java, there was nothing preventing you from using Servlets directly with some JDBC code thrown inside, or even worse, Scriptlet inside JSPs...
I would appreciate so much to know how you for instance implement a service layer, where do you put your business logic? Do you put it in classes or functions that returns other functions? How to write easily testable code by Mocha for instance... Do I really need a controller layer, or can I trust my routes to cover that responsibility?
I'm interested in JavaScript only on the Backend, using Express.js, Socket.io, RabbitMQ, Passport.js, and GraphQL(in the future). Not interested in any rendering engine or template engines, much less JavaScript on the Browser. I'm already very proficient with Sequelizer and Mongoose.
I know the feeling of switching from Java Spring Boot to the Node.js stack. It was confusing for me in the beginning aswell, but with time you find your set of frameworks you like.
I'm probably not qualified enough to answer your entire question, but I can give you some advice of what framework helped me the most after starting with Node.js.
For me, this framework is NestJS.
It's a progressive Node.js framework to build scalable server-sided applications, based on Express.js. It supports a lot of different design patterns, but I personally use a pattern consisting of controllers, services, repositories and providers. You can use multiple different databases obviously.
Nest.js stands out for me, because you don't need any 3rd-party tutorial or documentation, because their own documentation is done really well and has basically all the information you'll ever need. It is really expandable with additional dependencies (most of them are in-house developed and have great documentation aswell).
What also has to be mentioned, is that as a Java-dev you will probably miss OOP if you switch to JavaScript. In Nest.js tough you only develop with TypeScript and overall it gives you a feeling very similar to Java Spring Boot.
I've been working with Node+Express for a while now, and I'd like to start looking for a strong structure for building average to huge web apps, but which could also be used (and not be too much overkill) for simple websites.
I've been taking interest for backbone, but I'm looking for something much more "complete" already. I Know backbone can do everything with the right plugins and by respecting the best practices, but what I'm looking for is something more "strong" as is and from the start, like AngularJS, CanJS or Ember (maybe CanJS is the best compromise between flexibility and conventions althought all of this can be mostly subjective).
Just to be sure to keep into the best practices, even if I must stick to an opinionated FW.
Now, before choosing anything, and because I'll be using Node in the backend, so full JS, I'd like to know if there is a framework which would deliver client+server MVC capabilities, or if I must use Node/Express in the back and something else for the front.
Other info that may be useful, I'd like to code in CoffeeScript/LESS, and keep HTML as is (so no Jade-like stuff). If I'm not asking too much, I'd like to use this technology for all of my projects, which will be targeting also mobile phones, as websites (for sure), and sometimes even as Phonegap-based apps. Maybe this becomes hard (Meteor doesn't support Phonegap for it's client-side part for what I've read, maybe Derby ?).
Also, I must point out that I'm not asking anything subjective like "what is the best between ..." but simply if full client+server MVC JS framework exists, and if yes, which ones meets those needs.
rendr (backbone with server-side support)
meteor (very real-time oriented)
Meteor and DerbyJS seem great but very real-time oriented, I am not going for those.
I think I'll use TowerJS which seems to have really great features (live JS/CSS injection in browser when files updated, live node files reloading without restarting, pre-built development, staging and prod environments, MVC+ORM client+server-side, Redis for temp data and Mongo for DB...).
For Phonegap projects, I'll keep tower server-side and I'll find something else for the client, maybe simple backbone.
Take a look at the ExtJS 4. Also there is Sencha Touch 2 for mobile app development. Both of them has strong support for MVC.
sails.js is the most popular node.js MVC framework nowadays, and has a huge and growing community.
Meteor is also a great tool; my experience with the extjs community is that they are not very welcoming (rtfm noob! type of stuff).
im looking forward to build RT web apps with NodeJS. Coming from Rails, I've felt in love with NodeJS and Async JS programming.
Run a few experiments with Node, and then as I search tools and resources to get used with, I got overwhelmed with the lot of stuff over there.
I found lot's of libraries and components over there, and pretty much got confused on how a large-scale well-writen and implemented RT web app should be built.
So the app will run over NodeJS, using Express framework.
I read about knockout.js, a client-side library to provide realtime stuff like automatic UI refresh, and I guess I could conbine it with jQuery.
Also, I found socket.io.
The author says:
Socket.IO aims to make realtime apps possible in every browser and mobile device, blurring the differences between the different transport mechanisms. It's care-free realtime 100% in JavaScript.
So socket.io is about compatibility.
What about backbone.js? Where does it goes to?
With so much stuff, I got shocked. What should I learn? Which modules worth studing?
Im focusing on NodeJS and Express but most books/screencasts covers old versions of nodejs. So im being guided by its official API.
Now im here asking your advice and to organize somehow all the info out there.
Correct me if my assumptions are not precise, please point me to the right direction and feel free to suggest any other module that could help on my learning.
Thanks in advance
It might be useful for you to separate the node.js server side libraries (via npm etc...) from all of the client side (browser) libraries and technologies like jquery, backbone, knockout etc... when you think about it. Even socket.io which exposes a persistent socket connection between the browser and the server (to avoid polling) does not dictate what client side technologies you use.
Focus on exposing a solid web-api ( random example ) from your server and your client technologies can be swapped, augmented etc... with no effect on the server. The only place they intersect is if you're using a view technology like Jade. It's also an option to have a pure separation where the server is just serving up the client files and your client is a thicker javascript application (using knockout, jquery etc...) calling a good server web api.
Some folks try to unify the client and server models - for example, this article using backbone and node. It depends on how much data you work with to say whether that's feasible but it does couple the client and server and makes the server stateful which can have downsides (scale out, requires affinity etc...). Personally, I get wary of that much magic (binding, state, syncing etc...). Node is about keeping things simple, light and fast. It's a fast front end network server.
My 2 cents (and some may disagree). Start with node on the server and pick your storage (mongoDb etc...). Design a solid RESTful (hypermedia) API - a good webapi regardless of the client. Then start with a basic html/css/js, maybe jquery client and add things like knockout etc... as you expand your client skills. That will allow you to replace your client technologies independent of your server as the new technology winds change (and they will).
That's the hallmark of a well designed system - the ability to replace componets/sub-systems without rewriting everything :)
Hope that helps clear up some of the fog :)
You may want to look at Meteor if you are focussing on real-time Javascript apps: http://meteor.com/
I'm looking to build a rather robust application with NodeJS, however (being new to Node) I'd like some input from more experienced developers.
I've read some good things about flatiron, express / zappa, and others. Sadly it doesn't seem as though anything like http://ruby-toolbox.com exists for Node at the moment to really get a good slice across the spectrum of options.
Two primary things I need to keep in mind is that I'd like to work with CoffeeScript for development and this app will likely have a lot of interaction with a sister Rails app that also accesses the same database.
It seems that some of the projects I've looked at, such as zappa for example, haven't seen some developmental activity for some months.
What frameworks have the most community behind them and meet my hopes? Do you have any frameworks or combinations of libs that you find most useful together?
If you're coming from Rails, I'd recommend taking a look at http://towerjs.org/:
Tower.js is built on top of Node's Connect and Express, modeled after Ruby on Rails. Built for the client and server from the ground up.
Here's the thing: Node.js is less than three years old. It's attracted enormous attention from many exceptionally smart developers, but you can't expect the level of maturity that the Rails ecosystem has. Not everything in the RoR world has a Node.js analogue, and you're going to have to expect to do more low-level coding to get what you need done.
Yes there are a lot of great sounding but now defunct projects out there.
In terms of finding good active projects, this page is a good place to start: https://github.com/joyent/node/wiki/modules
Some of the modules I recommend include
Async
Forever
n
moment
Otherwise, express is virtually universal, and I haven't heard of flatiron or zappa before
I've been reading about node.js lately. I've seen many articles about how it's really great and all from some prominent people. Given the inertia that this project seems to have, and that I am currently learning javascript and jQuery, the project has gotten my attention. I get that many people are excited about it, but I don't quite understand what the implications are.
I understand that it is event driven and non-blocking and all of that, but where I'm confused is in regards to its intent.
Does node.js mean that we now have a foundation to run Javascript on the server-side, so that later maybe someone will create the Ruby on Rails or ASP.NET MVC equivalent for node.js/Javascript? Perhaps there already are web frameworks out there, but if so I haven't heard the hype machine yet.
I hope my question is clear.
I think the major implications are two-fold: huge performance and scalability gains, and the possibility of creating web applications where two or more people may work on the same web application at the same time, watching what the others are doing, in real-time. This latter one not only has big implications for web-based gaming, but also collaboration tools, etc.
It would appear that node.js is exactly what the real-time web needs. For that kind of thing, be sure to also checkout Socket.IO, which achieves cross-browser HTML5 web sockets. Combined with node.js, this makes for an incredible platform.
Check out what was made at the node.js knockout for some examples of what can be done.
I think what you can hope for is going to be more like twisted for Python, rather than e.g. rails for Ruby -- a rich, powerful framework, but still one requiring skill and care to use properly, because asynchronous programming is always like that... it's the price you pay for its absolutely awesome performance potential.
There are and have been Javascript server-side frameworks, but with server-side Javascript never being a really popular option, such frameworks never got the "critical mass" of support and enthusiasm that, say, jQuery has, or rails for ruby on the server side of things.
I doubt async programming (with its subtleness and difficulty) will be the defining trigger for a "mass movement" (hey, I hope I'm wrong, but I see e.g. the relative popularity for Python of Django, with none of the awesome performance, compared with Twisted, with _all_ the awesome performance... but the intrinsic difficulty too!-).
OTOH other developments (such as, simply, the wide availability of powerful, high performing, solid Javascript engines like V8) are more likely to eventually result in wide availability of (non-async;-) server-side Javascript choices, and as a consequence the possibility of the development (or porting -- e.g., a framework like dojo could already offer a lot to a JS server-side app, only parts of it are actually client-side) of powerful, simple, and therefore eventually popular framework. Nevertheless, I wouldn't hold my breath waiting for that either...
Node.js is an application server, not yet another webapp server. As the article says, it saves you the trouble of writing the event loop and using two languages to write apps (python/java/ruby/php backend, js frontend). As it is based in the V8 Engine by Google it's really fast and has a low memory footprint.
There's a web service framework called GeddyJS, and Node.js comes with a set of libraries for IO, database and math. It's also possible to extend it with addons, though last time I checked documentation was still a little rough on that.
There is a node framework called bogart which you can easily use the MVC pattern and mustache or common-ejs for templating.
http://github.com/nrstott/bogart