Top 10 API Testing Interview Questions SET-1 for Automation Testers/QA/SDET?

1. What are the types of methods most used in RestAPI Testing?

GET/POST/PUT/PATCH/DELETE/HEAD/OPTIONS

P1 : GET POST DELETE
P2 : PUT
P3 : PATCH

2. What are the types of Status codes?

1xx informational response – the request was received, continuing process
2xx successful – the request was successfully received, understood, and accepted
3xx redirection – further action needs to be taken in order to complete the request
4xx client error – the request contains bad syntax or cannot be fulfilled
5xx server error – the server failed to fulfil an apparently valid request

3. What are the status codes you have come across in your API testing project?

https://automationreinvented.blogspot.com/2019/03/what-are-most-used-api-status-codes.html

4. What is GET Method?

GET    Retrieve information about the REST API resource

5. What is POST Method?

POST    Create a REST API resource

6.What is PUT Method?

PUT    Update a REST API resource

7. What is DELETE Method?

DELETE    Delete a REST API resource or related component

8. What is HEAD method?

The HEAD method asks for a response identical to that of a GET request, but without the response body.
This is useful for retrieving meta-information written in response headers, without having to transport the entire content

9. What is OPTIONS method?

The OPTIONS method returns the HTTP methods that the server supports for the specified URL.
This can be used to check the functionality of a web server by requesting '*' instead of a specific resource.

10. PUT VS POST

https://automationreinvented.blogspot.com/2019/04/put-vs-post-example-lets-list-down-when.html

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