Backend development refers to the creation of server-side logic that powers websites and apps in the background. It contains all of the code required to build the database, server and application. From database migration to API integrations to configuring the server-side technologies that power a website, we've got you covered.

Backend Developer.

The role of a backend developer entails concentrating on website's architecture, scripting, and writing code that communicates between the website's database and the user's browser. It is critical to ensure data consistency and integrity.

Backend Core Concepts

1. How the internet works

The internet is a global network of computers that communicate with one another using the Internet Protocol Suite (TCP/IP). It consists of millions of private, public, academic, business, and government networks ranging in size from local to global, linked by a diverse set of electronic, wireless, and optical networking technologies. When you visit a website, your computer sends a request to the web server that hosts the website, which then responds with the requested information and sends it back to your computer. This is known as the client-server model. When you send an email, your computer connects to a mail server, which routes your message to the recipient's mail server. The servers then communicate with one another to deliver the message.

1. What are HTTP and HTTPS?

HTTP (HyperText Transfer Protocol) is the underlying protocol used by the World Wide Web, and it defines how messages are formatted and transmitted, as well as what actions Web servers and browsers should take in response to various commands.

HTTPS (HyperText Transfer Protocol Secure) is a protocol extension to the HTTP protocol. It is widely used on the internet for secure communication over a computer network. HTTPS secures communication by using SSL/TLS encryption.

1. What is a Domain name?

A domain name is a name that is used to identify a website or an email address on the Internet. It is the address that people type into their browsers to access a website or an email address. Domain names are used to give a website or email address a unique identity and make it easier for people to remember.

1. What is the IP address?

An IP address (Internet Protocol address) is a special numerical designation given to each device connected to a computer network that uses the Internet Protocol for communication, such as a computer, printer, or smartphone. Location addressing and host or network interface identification are the two primary purposes of an IP address.

1. DNS and how it works?

Domain Name System is referred to as DNS. It is a system for converting human-readable domain names into computer-understandable IP addresses. A sizable database of IP addresses and domain names is kept there to power it. The DNS server will look up the corresponding IP address and lead the user to the correct website when a user enters in the domain name of a website.

1. Hosting.

A website or web page can be published on the Internet with the help of a hosting service. Internet connectivity is also provided by hosting firms, generally in a data center, together with space on a server that is either owned or leased for usage by clients.

1. Web server

The fundamental network protocol used to distribute information on the World Wide Web, HTTP, is processed by web servers, which are computer systems. The phrase may be used to refer to the full setup or just the program that processes HTTP requests.

1. Database and popular databases.

A database is a structured collection of data that is typically electronically stored and accessed from a computer system. It is a database of data that has been arranged to make it simple to access, manage, and update. Oracle, MySQL, Microsoft SQL Server, PostgreSQL, MongoDB, IBM DB2, and Redis are examples of well-known databases.

1. API and how to use them.

Application Programming Interfaces (APIs) are collections of guidelines, protocols, and resources for creating software programs. They give separate programs a method to communicate with one another and give programmers access to and usage of data and services from other systems. An API's documentation, which describes how to submit requests, handle answers, and what data and services are offered, must first be understood by developers before they can use it. Developers generate code that interacts with the API after understanding the documentation using the language and tools of their choosing. After that, an application can include the data and services provided by the API using this code.

To sum up, backend programming is a challenging field that is always evolving, but mastering its fundamental ideas will provide you with the knowledge and abilities to benefit from all that it has to offer. You can begin to develop more dynamic and potent apps by becoming familiar with the fundamentals of how the internet functions, including HTTP & HTTPS, domain names, IP addresses, DNS, web hosting, and web server architecture. The ability to design more complex applications that are simple to interface with other platforms will also be facilitated by your knowledge of databases and APIs. You can become a successful backend developer if you have the necessary skills and grasp of these fundamental ideas.