By using APIs

API stands for Application Programming Interface. An API can be compared to something like a business contract. When one party gets into an agreement with another party, a contract is drawn. Similarly, an API is like a contract between the front end and the back end. . Just like a contract is drawn up before the two parties interact, an API is designed before the front end and the back end. APIs are designed to expose a predefined set of capabilities of the backend systems to inform the frontend applications about them.

Web Developer Overview

Web developers create and build websites from the ground up. Before they get started on a design, they take the time to fully understand the requirements and expectations: how much traffic the site will generate, what users will do with it, and what kinds of technology it needs to be compatible with. They can use their knowledge of programming and open-source code to put together a website that meets those needs. They often form part of a development team, working alongside systems engineers and developers. Web development involves  a lot of coding, testing, and re-coding. Developers are constantly on the hunt for code errors and issues that could slow performance or create data threats.