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Backend Explained

In this article, we shall take an overview of the backend technology to analyze how it works. 

What is a backend?

The backend is the portion of an application that executes various tasks that the app is designed to perform. The backend of an app is managed by the administrator and inaccessible to the app user; it the part of an app that stores data and codes that interpret program syntaxes.

The backend directly contrasts the frontend that provides an interface, allowing the user to interact with the application backend.

More often than not, backend codes consist of several programming languages. It is often referred to as the data access layer because it contains the functions accessible to client programs and users to provide various services. 

Vital Backend Concepts

The backend consists of several layers. It is necessary to discuss the architecture of backends to understand the integral layers it contains.  Below are some primary components of a backend architecture. 

  • The Database

The database is a central place for storing data in a unique format and retrieving it when needed. The database provides functions for accessing, adding, deleting, and updating data by a privileged user. A typical example is a library that has different sections and subsections that contain books.

  • The Virtual Server

This refers to a server located within another physical server machine. This type of server has an operating system and allocated server resources. Its operations and functions are independent of other virtual machines. 

A single server machine can contain multiple virtual servers. Perhaps, the best part of a virtual server is that it has no interaction with the host server machine. In essence, the apps that run in the virtual server environment are segregated and secure. 

  • Container

Containers perform the same functions as a virtual machine except that they do not run a dedicated operating system. Instead, several containers can share the same operating system. The fact that a container doesn’t host an operating system makes it lightweight and faster than a virtual server. 

Containers are like operating systems that are dedicated to running specific processes. They are excellent for running apps and other micro-processes. 

  • API Request

API requests refer to calls for data from the server-initiated by entering a specific URL on a client application. 

  • Load Balancer

Backends have a resource that distributes loads among the available backend servers to enhance service delivery to client terminals. This resource is called the load balancer; it prevents a single server from getting overwhelmed by client requests so that apps continue to function optimally.  This resource can also add servers on demand when available servers cannot handle traffic from client terminals. 

The Architecture of a backend

Taking a closer look at backend architecture, you will realize that they are separated into three segments called backend layers.  Let’s take a look at these layers one after the other.

  • Database Servers

The database layer is the first layer in the backend. It is essential to note that the database layer can contain several servers which may function as data replicators or manage backup routines. 

More often than not, databases are designed as redundant infrastructures with at least two databases that sync data in real-time. The database servers work together to ensure the data is always available despite contingencies.

  • Applications Servers

The second layer consists of several virtual machines that process requests from client devices. The number of available virtual machines varies throughout the day through a technology called autoscaling to allocate the optimal number of virtual machines to handle traffic from connected client terminals. 

Virtual servers can have multiple containers, while each container can only host a single application. 

  • Network Connection

The layer that connects the application to the internet is the third and last layer. This layer ensures that the application performance is optimal through load balancers and content delivery networks (CDNs). When an application experiences low latency, the fault is traceable to the network connection layer. 


This article s provided an overview of backends and how it works to provide a stable platform for hosting applications. Core backend concepts such as scalable databases, containers, virtual servers, load balancers, and CDNs were explained. 

Here we discussed all the architecture and working of a backend. All these elements work together to provide backends for developing and hosting applications. 


What is a Backend?

The backend is the portion of an application that executes various tasks that the app is designed to perform. The backend of an app is managed by the administrator and inaccessible to the app user; it the part of an app that stores data and codes that interpret program syntaxes.

How does the backend The architecture looks like?

– Database Servers
– Application Servers
– Network Connection

What are the backend vital concepts?

– Database
– Virtual Machine
– Container
– API Request
– Load Balancer

What is React Native?

Mobile development frameworks are used for developing modern apps with rich features that also withstand pressure from a massive userbase.

The framework you choose will determine your app quality and user experience.  React Native is one of the leading frameworks for creating feature-rich mobile apps for iOS and Android platforms. 

This article gives a general overview of application frameworks, the pro and cons of using React Native, and a list of other options for developers. 

Top 5 Alternatives to One Signal

For most web and mobile applications, it has become necessary to have messaging services. Whether you are building any application, it will have a buyer to seller, user to user, or user to customer support messaging required.

Although it brings a great feature to the application, it makes things complex for the developers simultaneously. It is the reason why different developers use different platforms for integrating the messaging services in their applications. So, here we will discuss some of the best platforms that you can use in this regard.

Top 5 Alternatives to Pusher

Whether it is application development or managing your developed application after deployment, it gets tough for the developers to manage things like server connections and data management across the whole user community. It isn’t easy because of the complexity of the task, but it is very time-consuming.

One of the best solutions for the developers is to use some tools or platforms that provide their services for the backend. Here we will discuss Pusher and some of the best alternative platforms that can be used instead of Pusher in data management and functionality.

Apps Made With React Native

React Native is one of the most popular and widely-used mobile application development platforms available today. This framework, created by Facebook, has been embraced openly by countless businesses around the world.

The features and functionality it offers help businesses deliver uniform and fluid experiences across the web, iOS, and Android platforms. Many prominent companies are also using React Native for their development needs. Take a look at the list of major businesses that use the framework below.

Top 5 Alternatives to Engine Yard

Engine Yard is one of the leading PaaS solutions meant to configure, deploy, and automate applications in a cloud environment. It is a robust cloud-based app management software built to empower developers and DevOps, to monitor, control, and provision cloud apps. 

Engine Yard can deliver excellent control and choice together, along with expert support. It can enable users to focus more on building apps without spending too much time on operating system installation, platform configurations, and managing their updates.

This tool is under use to enable users to leverage cloud computing’s essence without the hassles of being responsible for operation management.

Overall, it is a reliable solution for the developers who are using Ruby on Rails, Node.js, and PHP management and deployment. Whether it is a deployment of large or small scale, Engine Yard is capable of providing you all the essential tools to ensure fast deployments, deep expertise, and high scalability.

Even more, it also allows its consumers to retain overall app control. Some of Engine Yard’s key capabilities are load balancing, cloning, data replication, and backups. 

Google App Engine vs Heroku

A feature-rich and reliable cloud computing platform is one of the most vital business requirements across industry domains. The choice of a platform directly impacts the performance of applications and the value they deliver to end-users.

While there are many choices out there, Google App Engine and Heroku are two widely-popular platform-as-a-service options. Between these two, developers are most likely to find all essential cloud computing features. Read on to take a detailed look at both platforms.

Top 5 Alternatives to Digital Ocean App Platform

In this era of rapid and feature-rich software development, the developers get it very difficult to manage several things at their end robustly.

It is the time where the backend features and resources platforms come into play. Many different platforms offer these services, and each of them is better in its distinct way because of its features.

Here we will discuss the Digital Ocean App Platform and some of the best companies that offer this platform’s alternative services.

Google App Engine vs Firebase

Google App Engine and Firebase are both popular backends for the development of agile and high-performance applications. There are pros and cons to using each and the choice depends on your needs. Take a detailed look into both backend platforms below.