What protocol is primarily used for REST APIs?

What protocol is primarily used for REST APIs?

• A. FTP
• B. SSH
• C. HTTP
• D. SMTP

Answer: (C)

The primary protocol used for REST APIs is HTTP. REST, which stands for Representational State Transfer, is an architectural style that leverages the existing protocols of the web to create networked applications. HTTP is the foundation of data communication on the World Wide Web and the protocol that REST APIs utilise for operations such as creating, reading, updating, and deleting resources (often referred to as CRUD operations). HTTP provides a set of principles and methods (like GET, POST, PUT, DELETE) tailored for this kind of communication, making it a natural fit for RESTful services that aim to adhere to the web's stateless nature and uniform interface constraints. By using HTTP, APIs can easily work over the internet and be accessible across various platforms and devices, enhancing interoperability and scalability.

The primary protocol used for REST APIs is HTTP. REST, which stands for Representational State Transfer, is an architectural style that leverages the existing protocols of the web to create networked applications. HTTP is the foundation of data communication on the World Wide Web and the protocol that REST APIs utilise for operations such as creating, reading, updating, and deleting resources (often referred to as CRUD operations).

HTTP provides a set of principles and methods (like GET, POST, PUT, DELETE) tailored for this kind of communication, making it a natural fit for RESTful services that aim to adhere to the web's stateless nature and uniform interface constraints. By using HTTP, APIs can easily work over the internet and be accessible across various platforms and devices, enhancing interoperability and scalability.