Today I'm going to read from a book called Jumpstart Node.js by Don Nguyen.
Just a quick reminder that the Node.js is a platform to write server side applications. It achieves high throughput via non-blocking I/O and a single threaded event-loop. Node.js contains a built-in HTTP server library so Apache or Lightpd is not required.
The book cites an application WordSquared as an introduction to applications in Node.js. This is an online realtime infinite game of Scrabble.
Node.js is available from GitHub via a package manager
Over the http server is a framework called Connect that provides support for cookies, sessions, logging and compression, to name a few.On top of Connect is Express which has support for routing templates and view rendering engine.
Node.js is minimalistic. Access to web server files is provided via fs module. express and routes are available via express and routes module.
Node.js allows callback functions and this is used widely since Node.js is asynchronous. for example
setTimeout(function(){console.log('example');}, 500); The line after this statement is executed immediately while the example is rendered after the timeout.
Node.js picks up changes to code only on restart. This can become tedious after a while, so a node supervisor is installed to automatically restart the system upon changes to file.
MongoLab is a cloud based NoSQL provider and can come in useful for applications requiring a database.
Backbone is the MVC framework for the Node.js. It can be combined with the Node.js framework to provide a rich realtime user interface.
To create a custom stock ticker, a filter for the code of the stock could be implemented. When the user submits a request, Backbone makes a request to the server-side API. The data is placed into a model on the client side. Subsequent changes are made to the model and bindings specify how these changes should be reflected in the user interface. To display the view, we have an initialize and setVisibility function. In the initialize function, a change in the model is bind-ed to the setVisibility function. In the latter we query the properties and set the view accordingly. When the filtering is applied, the stock list is thus updated.
Just a quick reminder that the Node.js is a platform to write server side applications. It achieves high throughput via non-blocking I/O and a single threaded event-loop. Node.js contains a built-in HTTP server library so Apache or Lightpd is not required.
The book cites an application WordSquared as an introduction to applications in Node.js. This is an online realtime infinite game of Scrabble.
Node.js is available from GitHub via a package manager
Over the http server is a framework called Connect that provides support for cookies, sessions, logging and compression, to name a few.On top of Connect is Express which has support for routing templates and view rendering engine.
Node.js is minimalistic. Access to web server files is provided via fs module. express and routes are available via express and routes module.
Node.js allows callback functions and this is used widely since Node.js is asynchronous. for example
setTimeout(function(){console.log('example');}, 500); The line after this statement is executed immediately while the example is rendered after the timeout.
Node.js picks up changes to code only on restart. This can become tedious after a while, so a node supervisor is installed to automatically restart the system upon changes to file.
MongoLab is a cloud based NoSQL provider and can come in useful for applications requiring a database.
Backbone is the MVC framework for the Node.js. It can be combined with the Node.js framework to provide a rich realtime user interface.
To create a custom stock ticker, a filter for the code of the stock could be implemented. When the user submits a request, Backbone makes a request to the server-side API. The data is placed into a model on the client side. Subsequent changes are made to the model and bindings specify how these changes should be reflected in the user interface. To display the view, we have an initialize and setVisibility function. In the initialize function, a change in the model is bind-ed to the setVisibility function. In the latter we query the properties and set the view accordingly. When the filtering is applied, the stock list is thus updated.
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