REST API Interview Questions and Answers

Ques 31. Mention a few of REST's most important attributes.

REST has a number of important features, including

• Because REST is stateless, the SERVER has had no state or session data
• The server might be resumed in between calls thanks to a well-implemented REST API because all data is sent to the server.
• While REST uses GET to access services, web services often employ POST to carry out tasks.

Ques 32. What is a resource in a restful web service?

The core idea behind Restful architecture is resource. A resource is a thing that:

• a kind, connection to other resources, and techniques that use it.

Resources are labeled as:

• their URI, the HTTP methods they accept, the type of data in the request and response, and the data format.

Ques 33. How does the architecture for microservices operate?

• Clients: Requests are sent by numerous users using various devices.
• Identity providers: They verify the identities of users or customers and provide security tokens.
• API Gateway: Client requests are handled via API Gateway.
• Static: All of the system's material is contained in static content.
• Management: Determines failures and balances services across nodes.
• Service discovery: A tool for determining the path of communication among microservices is called service discovery.
• CDN: Network connection of proxy servers and associated data centers is called a content delivery network(CDN).
• Information: Information stored on a network of IT devices can be accessed remotely with the help of a remote service.

Ques 34. What design principles work best for resource representations?

The following are crucial considerations while creating a resource's representation format for a RESTful web service:

• Understanding and use of the resource's representation format should be possible for both the server and the client.
• Completeness A format ought to be able to accurately depict a resource. A resource could contain another resource, for instance. Format ought to be able to depict both straightforward and intricate resource structures.
• Linkability is a format that needs to be able to handle situations where one resource links to another.

Ques 35. What does RESTful Webservices statelessness entail?

A RESTful web service should not maintain a client state on the server in accordance with REST design. Statelessness is the term for this limitation. The client must transmit its context to the server, which can then store it and use it to perform the client's subsequent requests. For instance, the session identifier given by the client can be used to identify a server-maintained session.