In this course we will explain what an API is.
API is the acronym for Application Programming Interface, which is a software intermediary that allows two applications to talk to each other. Each time you use an app like Facebook, send an instant message, or check the weather on your phone, you re using an API.
What exactly is an API? Finally learn for yourself in this helpful video from MuleSoft, the API experts.
When you use an application on your mobile phone, the application connects to the Internet and sends data to a server. The server then retrieves that data, interprets it, performs the necessary actions and sends it back to your phone. The application then interprets that data and presents you with the information you wanted in a readable way. This is what an API is – all of this happens via API.
To explain this better, let us take a familiar example.
Imagine you re sitting at a table in a restaurant with a menu of choices to order from. The kitchen is the part of the system that will prepare your order. What is missing is the critical link to communicate your order to the kitchen and deliver your food back to your table. That s where the waiter or API comes in. The waiter is the messenger or API that takes your request or order and tells the kitchen the system what to do. Then the waiter delivers the response back to you; in this case, it is the food.
Specification: API Crash Course: What is an API, how to create it & test it
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