REST API Interview Questions
As a user interface helps us to communicate with computers and applications, an application program interface (API) helps computers and software applications to communicate with each other. This article will assist you in understanding what an API is and some commonly-asked REST API interview questions. So, let us begin with a quick introduction to API.
Types of APIs
1. Open APIs
2. Internal APIs
3. Composite APIs
4. Partner APIs
Protocols and Architecture in API
List of REST API Interview Questions:
1. Explain REST and RESTful.
2. Define a REST Resource.
3. Explain the term URI.
4. Explain the features of RESTful Web Services.
5. Explain the term ‘statelessness’ in the REST protocol
6. State and describe different HTTP Status Codes.
7. Explain Options in the REST architecture.
8. State and explain HTTP methods.
9. Are there any drawbacks of RESTful Web Services? If yes, state them.
10. Explain the concept of ‘Messaging’ in RESTful Web Services.
11. Explain the variation between the POST and PUT HTTP Methods.
12. What are the dissimilarities between SOAP and REST protocols?
13. List out some best practices to create URI for RESTful Web Services.
14. List out the best practices for designing a resource format.
15. State some dissimilarities between REST and AJAX.
16. List and describe the HTTP Request’s core components.
17. Explain different components of HTTP Response.
18. Explain and define Addressing in the context of REST.
19. State pros and cons of Statelessness.
20. State limitations for RESTful Web Services.
21. Explain caching.
22. Define Payload.
23. Is there any restriction on the payload size sent via the POST method?
24. Can we send payload using GET and DELETE HTTP methods?
25. Explain idempotent and safe HTTP methods.
REST is one of the effectively versatile and solid designs utilized for developing APIs. It is exceptionally adaptable due to the partition between the REST server and the REST client. Furthermore, web services developed utilizing the REST design are of incredible interest today. In this manner, the interest for REST API developers is expanding as needs be.