If we were building a banking application, we would need to write code that would access our database and access our secure server.

This is what web services allow a client (frontend) to accomplish in a secure fashion.

Examples of Web Services could be:

• a web service to register users

• a web service to log in users

• a web service to create accounts

• a web service to transfer funds

You can compare this to a fast food restaurant

• The customer would be the web browser or the frontend/client

• The fast-food worker would be the web server, or the backend/server

• And the menu would be the web services

• By creating a menu, the restaurant is saying, “This is what we sell, so order from here"

• So a customer would request what they want from the menu, and how the fast-food restaurant makes the order is their business and not yours