As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based on further discussion and what you answer: What REST stands for? REST stands for REpresentational State Transfer.

What is REST API in interview?

REST has a URI for accessing resources by means of a request-response pattern. AJAX uses XMLHttpRequest object to send requests to the server and the response is interpreted by the Javascript code dynamically. REST is an architectural pattern for developing client-server communication systems.

What is REST API easy explanation?

A REST API (also known as RESTful API) is an application programming interface (API or web API) that conforms to the constraints of REST architectural style and allows for interaction with RESTful web services. REST stands for representational state transfer and was created by computer scientist Roy Fielding.

What are the mark up languages available in REST services?

Ans. XML and JSON ( Javascript Object Notation ).

What is the difference between post and put?

PUT method is call when you have to modify a single resource, which is already a part of resource collection. POST method is call when you have to add a child resource under resources collection. RFC-2616 depicts that the PUT method sends a request for an enclosed entity stored in the supplied request URI.

What are REST API calls?

A RESTful API is an architectural style for an application program interface (API) that uses HTTP requests to access and use data. That data can be used to GET, PUT, POST and DELETE data types, which refers to the reading, updating, creating and deleting of operations concerning resources.

Is REST API and RESTful API same?

What’s the difference between a REST API and a RESTful one? The short answer is that REST stands for Representational State Transfer. It’s an architectural pattern for creating web services. A RESTful service is one that implements that pattern.

Should I use put or POST?

Use PUT when you want to modify a singular resource which is already a part of resources collection. Use PATCH if request updates part of the resource. Use POST when you want to add a child resource under resources collection. Though PUT is idempotent, we shall not cache it’s response.

What are the 3 parts of an HTTP request?

An HTTP request has three parts: the request line, the headers, and the body of the request (normally used to pass form parameters). The request line says what the client wants to do (the method), what it wants to do it to (the path), and what protocol it’s speaking.

What are the rest methods?

The primary or most-commonly-used HTTP verbs (or methods, as they are properly called) are POST, GET, PUT, PATCH, and DELETE. These correspond to create, read, update, and delete (or CRUD) operations, respectively.

What is difference between HTTP POST and PUT?

What is HTTP PUT?

The HTTP PUT request method creates a new resource or replaces a representation of the target resource with the request payload.

Is HTTP stateless or stateful?

Stateless Protocol: It does not require the server to retain session information or a status about each communicating partner for multiple request. HTTP (Hypertext Transfer Protocol), UDP (User Datagram Protocol), DNS (Domain Name System) are the example of Stateless Protocol.