What is API with example

API stands for Application Programming Interface, which is a set of protocols, routines, and tools that allow different software applications to communicate with each other.In simpler terms, an API acts as a mediator between two or more software applications,allowing them to share data and functionalities.

Let's take an example of a weather API. A weather API provides weather data to other software applications, such as a mobile app or a website. Here's how it works:

  1. A developer wants to add weather information to their app or website.
  2. The developer looks for a weather API and finds one that suits their needs.They then request an API key, which is a unique identifier that allows them to access the API's data.
  3. Using the API key, the developer makes a request to the weather API, asking for the current weather conditions in a specific location.
  4. The weather API receives the request, processes it, and sends back the weather data in a specified format, such as JSON or XML.
  5. The developer's app or website receives the weather data and displays it to the user.

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