{"id":11211,"date":"2021-08-30T15:08:39","date_gmt":"2021-08-30T15:08:39","guid":{"rendered":"https:\/\/www.monsterindia.com\/career-advice\/rest-api-interview-questions-and-answers-11211\/"},"modified":"2023-03-17T19:15:13","modified_gmt":"2023-03-17T13:45:13","slug":"rest-api-interview-questions-and-answers","status":"publish","type":"post","link":"https:\/\/www.foundit.sg\/career-advice\/rest-api-interview-questions-and-answers\/","title":{"rendered":"REST API Interview Questions and Answers"},"content":{"rendered":"\n

Overview: <\/strong><\/span><\/h2>\n\n\n\n

REST API<\/a> (Representational State Transfer <\/span>Application Programming Interface), also referred to as RESTful API, is an <\/span>Application Programming Interface (API or web API) that holds to the limitations of REST architectural style and permits communication with RESTful web services. Roy Thomas Fielding, a computer scientist, created REST. Fielding was also one of the principal authors of the HTTP (HyperText Transfer Protocol) specification.<\/span><\/span><\/p>\n\n\n\n

An API is a set of protocols and definitions for creating and assimilating application software. It is sometimes mentioned as an agreement between an information user and an information provider\u2014establishing the content required by the producer(the response) and the content needed from the consumer (the call). <\/span><\/p>\n\n\n\n

In other words, if you want to command a computer to pull information or execute a function, an API helps you communicate with the system to comprehend and accomplish the request. <\/span><\/p>\n\n\n\n

An <\/span>Application Programming Interface is a facilitator between the users and the resources\/web services. It allows an organization to share information and resources while maintaining control, security, and validation\u2014defining who gets access to what.\u00a0<\/span><\/span><\/p>\n\n\n\n

In this article, we will see some of the commonly asked <\/span>REST API interview questions. These <\/span>web api questions or <\/span>api interview questions focus on <\/span>REST API concepts, its usage and automation use-cases.<\/span><\/span><\/p>\n\n\n\n

Rest API Interview Questions<\/strong>:<\/span><\/span><\/h2>\n\n\n\n

These sets of <\/span>Rest API interview questions focus on the basics and usage and differences between similar <\/span>Application programming interface. Candidates preparing for job roles that require knowledge of REST API should put these at the top of their list – as the interviews more often than not start with conceptual knowledge checks like these. Some <\/span>Rest API interview questions can be tricky and may require multi-part answers.<\/span><\/span><\/p>\n\n\n\n

1. What is REST API? Give two examples. <\/strong><\/strong><\/span><\/h3>\n\n\n\n

REST is not a tool, a library, or a protocol; rather it is an architectural style of web service that delivers a mode of communication between computers or systems on the internet. It is a principle that is used as an architectural means of creating a Network-based software system.<\/span><\/p>\n\n\n\n

REST API concepts translate to an application program interface that is supported by the architectural design of REST. It refers to service, tools, or software that is built on the REST architectural standard. REST takes advantage of HTTP when used for web APIs, although REST can be used on virtually any protocol. The main benefit of REST APIs is that they provide more flexibility. In REST APIs, data is not inhibited to methods or resources. Therefore, it can return various data formats, make multiple types of calls, and even modify structurally with the suitable carrying out of hypermedia. It is an architectural style that developers apply to Web APIs.<\/span><\/span><\/p>\n\n\n\n

Examples of REST APIs<\/strong><\/span><\/h2>\n\n\n\n

It is recommended to keep these examples as answers of <\/span>rest api interview questions short and precise.<\/span><\/span><\/p>\n\n\n\n

  1. Twitter provides a REST API which a designer or a developer can query to procure\/source the latest tweets, or run a search query that will return the outcomes in JavaScript Object Notation (<\/span>JSON) format<\/span><\/a>.<\/span><\/span><\/li>
  2. Instagram API permits your applications to pull photos, accounts, user tags, and much more.<\/span><\/li><\/ol>\n\n\n\n

    2. What are REST APIs used for?<\/strong><\/span><\/h3>\n\n\n\n

    One of the main benefits of REST is that they offer a lot of flexibility, which allows you to do more with this API. Listed below are few examples of what REST API\u2019s are suitable for<\/span>:<\/strong><\/span><\/p>\n\n\n\n