By Garann Means
ISBN-10: 1449329055
ISBN-13: 9781449329051
When you know the way to exploit javascript within the browser, you have already got the talents you want to placed javascript to paintings on back-end servers with Node. This hands-on e-book exhibits you ways to exploit this renowned javascript platform to create uncomplicated server purposes, converse with the buyer, construct dynamic pages, paintings with information, and take on different tasks.
Although Node has an entire library of developer-contributed modules to automate server-side improvement, this booklet will help you software with Node by yourself, so that you actually comprehend the platform. realize firsthand how good Node works as an online server, and the way effortless it really is to benefit and use.
Set up Node and how one can construct scaffolding for an internet application
Work with Node natively to work out the way it services as an internet server
Understand how Node gets buyer facts from GET and submit requests
Use the Socket.IO module to facilitate realtime client-server communication
Choose from between numerous Node templates to create dynamic pages
Learn the best way to connect with a database, and shop information in files
Implement the Model-View-Controller development, and proportion Node modules with server and patron
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Additional info for Node for front-end developers
Sample text
Rather than write long blocks of monolithic code or nest callbacks several levels deep, we can create nicer code by emulating the client-side and treating everything we possibly can as an event handler. Callbacks and Messaging | 33 Implementations of messaging range from trivial to complex, both on their own and as part of larger frameworks. However, they all do essentially the same thing, assigning subscribers to event names and then, once an event is triggered, invoking those subscribers. PubSub = PubSub; Modules don’t look much different than an external script file you might use on the client-side, but there’s one difference you definitely must be aware of: the exports keyword.
In addition to the content for each page, our parent template and its rendering function will accept additional CSS or JavaScript imports as string literals. We can allow the render function to send back the rendered HTML without modification, or we can override that behavior by passing in an additional callback to call once the child template loads. Now that we have files being loaded and requests being made in order, you can begin to see the issues with nesting callbacks that frighten some people who are new to Node.
The only thing shared between Node itself and the database will be the EventEmitter vocabulary, if that. The second trick is that there are a lot of different ways people choose to store data in Node. NET on the back-end, you probably expect to use SQL Server. If you’ve worked with the traditional LAMP stack, MySQL is the natural database choice for your projects. This is slightly more complicated in Node because you can use anything you like. There are a number of data stores that use key-value patterns similar to JSON, but nothing precludes use of a traditional relational database like MySQL.
Node for front-end developers by Garann Means
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