DEV Community

Cover image for What is an API and how does it work with example...
Ravi  kumar
Ravi kumar

Posted on

What is an API and how does it work with example...

An API, or Application Programming Interface, is a set of rules and protocols that defines how two pieces of software can communicate with each other. It allows one piece of software, such as a website or a mobile app, to access and use the functionality of another piece of software, such as a database or a server.

Here is an example of how an API might work:

  1. A user visits a website and wants to search for a particular product.
  2. The website sends a request to the server through the API, asking for a list of products that match the user's search criteria.
  3. The server receives the request and uses the API to access the database, which contains a list of products.
  4. The server searches the database and returns a list of products that match the user's search criteria to the website through the API.
  5. The website receives the list of products and displays them to the user.

APIs can be used for many different purposes, such as allowing different applications to communicate with each other, exposing data from a database to a website, or enabling a mobile app to interact with a server. They are an essential part of modern software development and are used extensively in many different industries.

Top comments (0)