Node.Js Benefits In Web Server Development :
1) It is especially suitable for applications that require real time communication between client and server. Socket.io is a tool
used for building things like chat applications really easy. This same features make Node.js suitable for applications that process data from IoT devices (Internet of Things) and Single Page Applications (SPAs).
3) The node package manager (NPM) provides access to hundreds of thousands of reusable packages. It provides best-in-class dependency resolution and can also be used to automate most of the build toolchain.
4) Node.js is portable. It is available on Microsoft Windows, macOS and so many other operating systems.It is also well-supported by many web hosting providers, that often provide specific infrastructure and documentation for hosting Node sites.
8) Node.js is well suited for applications that have a lot of concurrent connections and each request only needs very few CPU cycles. It is ideal for many applications currently on the internet like SPAs and real time applications.
9) Node.js comes with very few dependencies, rules and guidelines. This allows a developer to have the freedom and creativity in developing their applications the way they want to. They can select the best architecture, design patterns, modules and features for their project and get all the benefits from the community through NPM.
Web Development With Node and Express
Express is considered to be the most popular Node web framework. It is the underlying library for a number of other popular Node web frameworks.
Mechanisms Provided By Express :
- Write handlers for requests with different HTTP verbs at different URL paths (routes).
- Integrate with “view” rendering engines in order to generate responses by inserting data into templates.
- Set common web application settings like the port to use for connecting, and the location of templates that are used for rendering the response.
- Add additional request processing “middleware” at any point within the request handling pipeline.
While Express itself is simple to use, developers have created compatible middleware packages to address almost any web development problem. It has libraries to work with cookies, sessions, user logins, URL parameters, POST data, security headers, and many more.
In a general scenario of a traditional website, a web application waits for HTTP requests from the web browser (or other client). When the application receives a request, it figures out what action is needed based on the URL pattern and the information contained in POST data or GET data. Depending on that it may then read or write information from a database or perform other tasks required to complete the request. Next, the application will return a response to the web browser, often dynamically creating an HTML page for the browser to display by inserting the retrieved data into placeholders in an HTML template.
With Express, you get methods to specify what function is called for a particular HTTP verb (GET, POST, SET, etc.) and URL pattern (“Route”). You also get methods to specify what template (“view”) engine is used, where template files are located, and what template to use to give a response. Even Express can be used as a middleware to add support for cookies, sessions, and users, getting POST/GET parameters, etc. Any database mechanism supported by Node can be used with Express.