Here are some practical examples of how APIs are commonly used.
Currency Converter
APIs allow currency converter apps to fetch the latest exchange rates. For instance, the ExchangeRate API provides up-to-date currency rates between two specific currencies.
Here is an example response from an ExchangeRate API endpoint:
Movie Database (OMDB)
The OMDB API provides information about movies, such as titles, release dates, and ratings.
Here is an example response from an OMDB API endpoint:
Submitting a Sign-Up Form
When you fill out a form on a website, APIs are often used to send the data to a server for processing. For example, the JSONPlaceholder API can simulate submitting data.
Here is an example response of a form submission:
Sending a Payment Request
APIs are critical for processing payments. For instance, you can use the Stripe API to send payment
information securely.
Here is an example response of a successful payment: