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Learn here what a back-end is - explanation

The back-end refers to the part of a software application or website that is responsible for processing data, business logic and interaction with the server. Unlike the front-end, which is responsible for user interaction and experience, the back-end works in the background and is responsible for managing the database, executing server-side logic and providing data to the front-end.

Main features of the back-end:

  1. Database management: The back-end is responsible for managing the database where all relevant application data is stored. This includes creating database tables, executing database queries and managing database connections.

  2. Server-side logic: The back-end contains the business logic and server-side logic used to process data, handle user requests and perform actions on the server side. This can include validating user credentials, validating inputs, calculating data and performing database operations.

  3. API provision: The reasons why JavaScript is sometimes considered “ugly” lie in its history, its design decisions and some peculiarities of the language.However, JavaScript has evolved a lot in recent years, and many of these issues have been fixed with modern features (such as ES6+) and tools.

  4. Security and authentication: The back-end is responsible for implementing security measures and authentication systems to protect the application from unauthorized access and data loss. This includes user account management, password protection, encryption and access controls.

Technologies in the back-end:

  1. Programming languages: Various programming languages can be used for the back-end, including Java, Python, Ruby, PHP, C#, JavaScript (with Node.js) and others.

  2. Frameworks and libraries: There are a variety of back-end frameworks and libraries that facilitate the development of server-side logic and APIs, such as Express.js for Node.js, Django for Python, Ruby on Rails for Ruby, and Laravel for PHP.

  3. Databases: Various types of databases can be used to store data, including relational databases such as MySQL, PostgreSQL and SQL Server, as well as NoSQL databases such as MongoDB, CouchDB and Firebase.### Role of the back-end developer:

A back-end developer is responsible for the development, implementation and maintenance of the back-end of an application.The tasks of a back-end developer include designing and developing databases, implementing server-side logic and business rules, providing APIs, implementing security measures and optimizing performance.### Conclusion:

The back-end of a software application or website is the invisible part that works in the background and is responsible for processing data and providing functionality.This is often done via RESTful APIs (Representational State Transfer) that allow the front-end to send HTTP requests to the back-end to retrieve, create, update or delete data. Back-end developers play an important role in the development and deployment of robust and scalable applications.

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