Connectivity and APIs

Introduction

• Connectivity allows instant interaction across the globe.
• We can perform various actions like purchasing, posting, or booking instantly.
• APIs are integral to enabling this connectivity.

What is an API?

• Definition: Set of routines and protocols in computer programming.
• Function: Acts as a messenger, taking requests, informing systems what to do, and returning responses.

API as a Waiter Analogy

• Analogy: API is like a waiter in a restaurant.
  • Menu = Options available for order.
  • Kitchen = System that processes the order.
  • Waiter (API) = Communicates orders to the kitchen and delivers the response (food) back.

Real-World Example: Airline Booking

• Process: Searching for flights using options like departure city, return city, dates, etc.
• Direct access: Using the airline's website gives direct access to its database.
• Indirect access: Using an online travel service requires interaction with the airline's API.
  • The API requests and retrieves information like seat availability and costs.
• Outcome: Enables travel services to provide information from multiple airlines.

Importance of APIs

• APIs facilitate interactions between applications, devices, and data.
• They are crucial in creating the connectivity that underpins today’s digital interactions.

Conclusion

• Think of APIs as the facilitators that allow for seamless connectivity and data exchange.
• Consider MuleSoft for API creation.