Ashok Sachdev

December 16, 2022 555 Views
16 mins read Last Updated December 16, 2022
how to build a single page application

Quick Summary : What is single page application? It is a just web application which render javascript code directly. Many companies nowadays moving on single page application such as META or FACEBOOK, Instagram, Airbnb, Gmail, Paypal, Github and many more. In this article, discussing step by step to build single page application.

Single Page Applications or SPAs are web-based solutions that render JS code directly in the browser without page reloading during the user journey. The initial intent is to optimize the mobile experience. The SPA creates a native experience within the user’s mobile browser. After opening the page for the first time, all data will be loaded automatically.

In this way, users can view the website without reloading all pages and data from the server resulting in increased efficiency, and you feel like using a native application. You can get a dynamic web experience when building single page applications. It allows users to stay in one uncomplicated web space in a simple, functional, and simple way.

How does the SPA work?

The single-page application architecture is simple. It involves client-side and server-side rendering technologies. When you enter an address to request access from your browser, In return, the browser sends this request to the server and comes with an HTML document.

When using a single page web application, the server only sends an HTML document for the first request. And for the next request, it sends JSON data, which means that the SPA rewrites the content of the current page and does not reload the entire page. So there is no need to wait extra for reloads and faster performance. This capability allows the SPA to behave like a native application.

A single-page application is different from a multi-page application (MPA). The latter is a web app that reloads multiple pages when the user requests new data.

Additionally, building single page applications may take a while to load initially. But it offers faster performance and smooth navigation after MPA loading. It can be quite slow and requires great internet. This is especially true for graphical elements.

What are the benefits of SPA?

Most of the resources, such as HTML, JavaScript, and CSS, required by SPAs are loaded initially and do not need to be reloaded when used.

benefits of spa

Better Speed:

Web applications need to provide faster speed and not waste user time. Otherwise, users can find another efficient place. The single page architecture provides a shorter response time as the entire page does not have to be reloaded, and only the data is changed in the requested body. So web app speed is greatly improved.

Improve User Experience:

Better user experience is critical to the success of the application. Many reports advise users to leave slower and uncomfortable pages, but with SPAs, users don’t have to wait all over again to reload all the content just to get some of it. They can receive the requested information faster, which improves the experience of using the single page web application.

Efficient Caching:

Single-page apps can effectively cache data since the request is sent to the server only once. Then update any other information. This way, this data can be used to work even when you are offline. If the user’s connection fails, users can synchronize data locally with the server once the connection is established.

Simple Development:

SPA development is easier as developers don’t need to spend more time coding and rendering web pages on the server. But it can reuse the server-side code and separate the SPA from the front-end user interface. This means front and back teams can focus on their work without worry.

Front-end development becomes easy in single page architecture due to its modular architecture, where the front end is separated from the back end. This is because the essential backend functions of the business haven’t changed much. You can keep the original content as well but can change the appearance SPA development cost may less than multiple web page

When the back-end logic and data are separated from the presentation method you will turn the app into a service. This allows developers to create multiple front-end methods and render that service. It also allows developers to build an app, test, and deploy the front end without worrying about the back-end technology.

Easy to Debug:

Application debugging is important to ensure that nothing can stop an application from working properly by detecting and removing bugs and errors that can slow down performance.

The single page web application is easy to debug with Google Chrome as they are built using popular frameworks like React, Angular, Vue.js, etc. You can easily inspect and verify page elements, data, and behaviour networks.

Additionally, debugging in SPAs is easier than in MPA because SPAs have their own developer tools for Chrome. Developers can inspect JS code rendering from the browser and debug SPAs instead of having to go through multiple lines of code like a hundred thousand lines. The Chrome debugger looks at page elements and requests information from the server and data caching as well.

Less resource consumption:

Single-page apps use less bandwidth when loading a single page. It also works in areas with slow internet connections. It is convenient to use for everyone. Moreover, they work offline to save your data, so you don’t have to provide consistent internet to access and work with them.

Cross-platform compatibility:

Developers can build cross-paltform applications that run on any operating system, device, and browser, as well as easily using a single codebase. Therefore, it also enhances the customer experience as they can use the single page architecture wherever they want.

Additionally, developers can easily create feature-rich apps. For example, they can integrate real-time analytics while developing content editing applications. However, there are some drawbacks associated with SPAs.

When should you use the SPA?

Spas have many benefits but also drawbacks. So it is unwise to say it is all good or all bad. It depends on your needs and goals in building single page applications.

You want to create a native browser experience:

The single page architecture is a setup where you can build high-performance apps that run smoothly on any device and in any browser. The SPA system offers the opportunity to build a mobile app base. Meanwhile, you can provide a native app experience that will work in popular browsers.

You need a fast, dynamic platform that doesn’t handle large amounts of data:

Let’s say you want your app to be responsive and high-speed. But you don’t want your website to be highly loaded. If that’s your situation, The SPA is perfect for your needs.

You want fast results:

If you want to launch your app as soon as possible, a single page web application will be your choice. Developing single-page applications allows you to launch responsive websites much faster. Therefore, SPA is a great choice for MVP app development. After that, you can collect user feedback and review your app ideas to determine whether it is successful or not in all website development. So with SPA, you can grow your business faster than if you choose to use MPA.

You want impressive client-side functionality:

A rich user-oriented interface generates interest and keeps visitors at your site. It is also helpful to get them to take certain actions.

You have a ready-made API:

If there is an API for public or internal use, you can use the SPA method to generate it instead of trying to generate the necessary logic with MPA.

How will you build a SPA?

Any custom software development, including SPAs, requires three of the most important factors: team, time, tools, and technology to building single page applications.


You need a development team that is proficient in JavaScript, CSS, and HTML, along with knowledge of other technologies.

  • The project manager leads the team and monitors and guides the development process.
  • JavaScript developers to write quality front-end code.
  • UX/UI designers design beautiful apps with usability in mind.
  • Backend software engineers seamlessly connect servers and app interfaces.
  • QA specialists test applications for errors and bugs this ensures that nothing can compromise the performance of the app.

Time and budget

Edit your app development timeline to ensure it’s done when you want to deploy it in the market. Set a timeline based on the complexity of your app, Specifications, and team size. Dedicate enough time to research, plan and develop effective processes for each development stage, from coding to design, testing, and deployment.

Additionally, there are plans and resources for maintaining the app to resolve issues, add new features, Content updates, etc. Also, make sure everything works within your budget. For this, allocate your team members and resources wisely.

Tools and technology

Tools and technologies are essential in web app development. As mentioned earlier, JavaScript, CSS, and HTML are the three technologies that you must implement in the development of your single page application design. You also need many other tools, such as a JavaScript framework to build the app’s “skeleton”, Ajax (JS and XML) for deployment, back-end technologies like PHP, Node.js, etc., and a database like MongoDB or MySQL. Let’s learn more about which JavaScript frameworks are suitable for SPA development.

What are the best single page application frameworks for web development?

The single page web application has many utilities that streamline the development process in addition to repetitive code execution, automatically and presenting ready-to-use components. These frameworks offer HTML and AJAX support, URL routing, data caching, protection against security vulnerabilities, and improved performance. Some popular web frameworks used for web application development of single-page applications are listed below.

  • Angular

The single page architecture of Angular is a client-side open-source, open-ended, Javascript-based framework. The framework was developed by Google, and popular users include PayPal, Google, and Microsoft. This framework allows all content to be transferred directly from the server to the browser.

At the same time, it loads all web pages. Once the page is loaded with this framework, the page will not reload even if the link is clicked. In this situation, the web page will be updated immediately. Fast loading capability will not cause a high load on the server. Many types of coding burdens are eliminated by the double-linking feature.

  • ReactJS

It is more of a library than a framework for building user interface applications. In 2013, with the rapid growth of JavaScript, ReactJS was marked as a much sought-after and popular framework. This is the best in a time when high-performance enterprise applications are delivered to users. This framework is quite more flexible than the AngularJS framework. This flexibility is because their developers need to deal with standalone libraries, which gives this framework good latency.

This framework is mainly used for creating widget-based views. It also supports one-way data binding integrated with Flux controls. Such framework-based pages have a virtual DOM, and maintaining this framework seems easy. Both server-side and client-side implementations take place in ReactJS. Using this framework allows for the redistribution of the load from the server to the client side where necessary.

  • Ember JS

The framework promotes a lot of flexibility as it is a highly opinionated open-source framework. It has a unique approach that uses widgets, specifically known as Ember components when data changes in this framework. Templates integrated into handlebars are updated using a minimal coding process.

Many popular EmberJS users are available, including Microsoft, Live, Vine, Netflix, and others presented by such kinds of frameworks have been marked as quite witty. The two-way data binding model is followed by this type of framework. After the results of the 2015 research, it was announced that this framework was named the best JavaScript framework.

  • Backbone JS

A type of framework is JavaScript libraries, first released in 2010. They are organized in such a way that especially for structured code. This frame is lightweight and flexible. Their feature allows them to run on architectures based on the MVP Backbone framework, providing event-based communication that helps prevent application interference.

This framework has 100 extensions due to its free and open-source quality. This framework offers many types of tools, such as models, events, views, routers, etc. The HTML code is automatically updated in case of any changes in the model. Building client-side web applications and mobile applications will be neat.

  • JS

Using Node.js, Meteor.js was created, a free, open-source, full-stack JavaScript framework. Meteor.js is used by many companies such as Honeywell, Mazda, Qualcomm, etc. Live browsing reloading is born. Meteor.js, this framework works with data on a hardwired principle that successfully sends data to the server rather than HTML. On the Node.js platform, this framework quickly builds interactive applications.

In other words, simple we can say that in case of any changes to the frontend, this framework, with the help of default, will reload the actual page. By doing this, only relevant DOM elements will be refreshed instead of reloading the entire page. With so many advantages and features, Meteor.js is easy to set up for different types of projects and in promoting higher scalability as well. They give users full flexibility to get good development.

Hence, these are marked as important frameworks used for single page architecture development. The features of these frameworks discussed in detail will enable a person to select or select such kinds of useful frameworks for app development. To make the application interactive and complete, these frameworks play an important role.

Importance of Build a Single Page Application:

Many times single page web applications are popular, especially at a time when JavaScript frameworks such as Angular JS are being used today with the advancement in technology. This led to a huge demand for single-page apps. These apps are very important in modern times. Some of the key characteristics of single-page apps are marked as follows:

Delivers high speed is the fact that single-page web apps deliver fast rates and high speeds. Page reloading never happens by the user because only data is sent to the line throughout the lifetime of the application. There are many resources, such as HTML and CSS scripts, that load once. In use, background activity does not impede it. From this advantage, Time is reduced in displaying information and navigating.

Simple and smooth:

Running on a single page application design does not require writing code to bid to serve the page on the server. Developers will love these types of applications with this advantage. Plus, developers are free to reuse the same backend for web and native mobile applications.

This is a simple and uncomplicated process. The user has to start the job in advance from the file for web app development. There are many types of useful tools offered by ready-made libraries or frameworks. In the process, they are separated in such a way that they do not interfere with each other. This type of application requeliveslive web page data and markup independently before rendering the web page directly to the browser.

Debugging Simplicity:

With the help of Chrome, we can say that debugging is not a complicated task while checking the operation of the network. Developers can inspect other elements including page information to improve user experience. This type of process makes it easy to notice that if something goes wrong, fix it immediately.

Local storage cache:

The app sends only one type of request, which is in all storage formats. With such advantages, Data can be used by site offline at any time. This has been marked as another type of illustration for many single-page applications.

Easy Search Engine Optimization:

It is a good misconception that optimizing web pages for SEO is a huge challenge that is almost impossible. This misunderstanding or the question that bothered me in the past now no longer exists. Developers seamlessly manage the SEO optimization of single-page applications. An example of single page application is Google sites, crawling to sites built on indexing frameworks. Site owners use a variety of techniques for their applications. Some techniques are marked as follows:

  • On-site, create a list of all pages.
  • Using “Fetch as Google”
  • Site re-crawling
  • Analytics will be configured.

Another illustration of a single page application design includes improved page rankings to improve rankings. All inbound links that exist on multiple pages intersect on one page. Due to the advantages of search engines with high content density, users will fall in love with one page. This developer action will show that there will be no worries about single-page application SEO optimization while working with the framework architecture.

Web experience improvements:

The user experience is a priority while developing the app. On a single page application design, the application helps a lot in this regard. This single-page application feature helps professionals and beginners create web experiences to power desktop apps. Developers will not build mobile applications in this way.

This advantage has been marked as a very welcome move because users will no longer have problems while using such kinds of applications. These issues come in the form of pending approval from the App Store or allowing customers to download updated applications.

The importance of single page architecture is reflected after understanding why applications are increasing rapidly. From all such advantages, Users will understand the importance of single-page apps. With this importance, Single page applications will be the most demanding of users in today’s progressive era.

How will the SPA benefit the product owners?

As the product owner, it will be much easier for you to manage the single-page application development process because of the separate SPA floor. You will greatly benefit from the smooth rollout of your product updates. It keeps you ahead of your competitors and delights your users.

How will the SPA benefit software developers?

In the case of single page web application development, the product creation process is faster and smoother. Two teams can now create the front and rear at the same time since the SPA is split into two layers. Single-page apps are also easier to scale. For example, developers can easily integrate new features or prepare their applications to support a larger number of users.


With the help of all the facts and details mentioned above, we have come to know that single page web application is very important in this modern world. And about this factor, there are different types of frameworks that a person should choose to develop these apps nowadays due to the advancement in technology.

As a result, many designers and developers are tasked with delivering more complex and superior apps. Many times single-page applications are popular, especially at a time when JavaScript frameworks like AngularJS were introduced.


Written by: Ashok Sachdev

Ashok Sachdev is the Project Manager at Groovy Web who began his professional career as a programmer at the young age of 17. Ever since then he is actively growing, learning new things, and adapting to new roles and responsibilities at every step. Aside from being an app developer, he is highly admired for his project management skills by his clients.

Frequently Asked Questions

We hope these clear your doubts, but if you still have any questions, then feel free to write us on

If the spinner on your browser begins to load and a new page appears, it indicates that the programme is multi-page. The website is a single-page application if the content updates quickly without the need to open a new web page.

Google Maps, Gmail, Netflix, Airbnb, Paypal, Pinterest, and many more use single page applications (SPAs) to create a fluid and scalable experience.

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