Question

Do restful APIs supply the benefits of the relational data model - data independance and communicability?

Answer 1

What is Restful API ?
Full form of RESTFul API is, Representational State Transfer. It is a means for two computers to communicate with each other over HTTP. A Restful API is an architectural styled API that uses HTTP connection to access and usw the data. We can perform various operations on that data such as GET, PUT, POST and DELETE. We can modify the resources using these operations.

Features of RESTFul API are -

1. Client-server architecture
2. Stateless
3. Cacheable
4. Uniform Interface
5. Layered system
6. Code on demand

Restful API proovides the benefits of relational data model - i.e, data independance and communicability.

Data independance in restful API -
Restful is stateless. Each HTTP connection contains all the needed information to run iy, so that neither the client nor the server needs to remember previous state for connection.
Restful API is implemented on client-server architecture. It has layered architecture. Layered architecture means system is composd of multiple hierarchicle layers. This provides great data independance. Because of layers, various component's behaviour can be constrained. These components cannot see beyond the immediate layer with which they are interacting.
So restful API provides high data independance to it's users.

Communicability in restful API -
Restful API implements client server architecture. By means of this, communication can be established between clients and servers. Different layers in architecture can communicate with it's immediate layer.In the layered architecture, you can deploy the API on server A, and data can be stored on Server B. Whereas requests from clients can be authenticated on server C.