10 Best Ways To Build Apps Faster With Node.js

Node.js’ popularity meter has increased a lot and it has still a long way to go. Thanks to its appeal and versatility. But when it comes to the web, only getting faster do not help. If any web app is to be developed by Node.js then you need to ensure that the speed must excel the usual one. Here are ten tips which will help you in running Node.js script in the fastest way possible.

1. Parallel nature of running calls:

More than one internal API calls are mostly needed while building web apps like we can see in a dashboard which requires several hypothetical calls. If you want to revoke all the details on the dashboard then a separate middleware should be created.

But there is a certain problem in these kinds of functions. Before a function gets completed, the next one cannot be started. That’s when you can run calls in parallel and Node.js is the most efficient way for this function. If parallel running is conducted, then number of middlewares comes down and the speed automatically improves. You can use async.js which is nothing but a Node module. Check out Github page of the project to learn more about async.js.

2. Take advantage of asynchronous nature:

Node.js has been designed in a single thread and that’s why synchronous code has the capability to lock an entire application. But in case of long running and blocking functions, the main thread gets blocked till the time the operation ends. It results to a decline in the app’s performance level.

If asynchronous APIs are used while coding then this problem is resolved.

3. Caching:

Caching of data improves performance level. For example, if you have a blog and you are not a very frequent blogger, then you can just cache the ‘posts’ array and then just clear the cache after a certain gap.

4. gzip Compression:

gzip compression is highly impactful while building any web app. As a compatible browser sends a request for some resource, the server compresses the response and then it is sent to the browser. If the compressor is not used, then longer time will be required by the browser to fetch the data.

5. Client Side Rendering:

Creating single page apps has become easier with client side MVC/MVVM frameworks like AngularJS, Ember, Meteor etc. Now the server side doesn’t need to be rendered but APIs, which send JSON responses to the client, only need to be revealed.

On the client side, a framework can be used to grab the responses and to display the same on the UI.

6. Storage in sessions should be minimum:

In certain cases, the memory saves session data, by default. If there is too much data stored in the session, it affects the server. To avoid it, some other kind of storage can be used to save session data or the quantity of the saved data can be minimised.

7. Queries’ optimisation:

This is the most required tip for bloggers, who keep on writing through blogging apps. If the objects on the blogging platform are not fetched, then definitely speed will get improved. Or we may say, optimisation of queries can help a lot in increasing speed.

8. Standard V8 Functions:

Browsers usually don’t support several operations on collections. If you are facing compatibility issues with the browser, then some client side libraries can be used on the front end. But when you are using Node.js, you are well aware of which operations are supported by V8 JavaScript engine, by Google. So these functions can be used directly on the server side for any manipulation.

9. nginx in Front of Node:

A small and light web server, Nginx, is able to reduce the burden on Node.js server. This server can be used for static content and also compressing responses with gzip, so that the response size is always small. Nginx is an important tool for improving speed of a production app.

10. Minimise JavaScript and create links:

If multiple JavaScript files are minimised and made into a complete whole, then the web app’s speed can increase, tremendously. The same process applies to CSS files too.

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