REST API Interview Questions (Advanced Level)

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Watch our previous video on beginner REST API interview questions: • REST API Interview Que...
In this video, Kevin Wei explains the answers to some of the most common advanced REST API interview questions for developers. We cover payloads, REST messaging, HTTP requests and methods.
Chapters -
00:00 - Introduction
00:30 - What is the difference between PUT, POST, and PATCH?
01:22 - What is a payload in the context of a REST API?
01:47 - What is a REST message?
02:11 - What are the core components of an HTTP request?
02:59 - What are the core components of an HTTP response?
03:49 - What is an idempotent method and why are they important?
04:32 - What's the difference between idempotent and safe HTTP methods?
04:51 - Explain caching in a RESTful architecture?
05:21 - Best practices in developing a RESTful web service
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#softwareengineering #restapis #soapapi #uri #ajax #javascript #xml

Опубликовано:

28 июн 2024

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Комментарии : 40

@tryexponent 5 месяцев назад

Don't leave your software engineering career path to chance. Make sure you're interview-ready with Exponent's software developer interview prep course: bit.ly/3Cd56T5

@Boringpenguin Год назад

0:30 #1 What is the difference between PUT, POST and PATCH? 1:22 #2 What is a payload in the context of a REST API? 1:47 #3 What is a REST message? 2:11 #4 What are the core components of an HTTP request? 2:59 #5 What are the core components of an HTTP response? 3:49 #6 What is an idempotent method and why are they important? 4:32 #7 What is the difference between idempotent and safe HTTP methods? 4:51 #8 Explain caching in a RESTful architecture

@laponiec 10 месяцев назад

Short and sweet, love the fromat of your videos and thank you all the effort you put into them.

@shrashetty8279 Год назад

Awesome!! Precise defination. On point explanation

@snavesinned Год назад

For "advanced", I'd expect more from the question on the difference between PUT, PATCH, and POST. POST requests the server create a new resource and respond with its newly created URI. PUT and PATCH will update, or MAY create, a resource at a specific URI. The difference being PUT replaces (overwrites) the resource and PATCH simply updates specific properties. It's important to note that PUT is the only true idempotent action of the three. PATCH may be idempotent but not always. It's also important to note that on PUT and PATCH operations, if the resource doesn't exist, the server MAY create the resource, but doesn't have to. This just depends on whether the service requires it creates URIs via POST or is OK with UTIs being created by PUT and PATCH requests. If the latter, handlers of those requests should validate if all fields required to create a resource are present before it creates the resource should it not exist. Most importantly, API developers should stop treating PUT like a PATCH operation which seems like common practice because GET, POST, PUT, and DELETE operations are too commonly likened to CRUD operations without the explanation of the differences. HTTP requests are an operation on the resource at a URI, not the datasource. It's not a 1:1 CRUD pass-through to the datasource, especially since URIs represent more than data in a datasource.

@Hey__Luna__912 Год назад

Thank you. It was really useful info to learn. Do you have any suggestions of some resources where one can learn more such in-depth info about REST-api ?

@huywarrior 11 месяцев назад

I really like your interpretation of the question "What is the difference between PUT and PATCH". It cleans, simplifies, and filters the gist! Repeat at your own discretion and memorize to reinforce the knowledge, in my opinion: Put: Overwrite all Patch: Change only necessary components and attributes

@suvrojyotibhuniya3524 Год назад

Thanks bro,you explained very efficiently,keep working...

@khushishareef2909 2 месяца назад

Best practices 1. Supporting JSON data transfer 2. Using proper status codes 3. Using URI hierarchy to represent the relationship between resources 4. Using idempotent HTTP methods 5. Using caching 6. Incorporating security measures

@felipefreitas1498 Год назад

Great video! Thanks!!!

@biancastefania184 7 месяцев назад

You are awesome! Keep up the great work💯

@jayavishnuramsaravanaraj1876 Год назад

Thanks for sharing the knowledge

@edwinrosales6322 11 месяцев назад

Great tips!

@legostarwarszadzi 9 месяцев назад

Golden content thank you

@SethWilson Год назад

Thanks :) good stuff.

@rasikasamith Месяц назад

Thanks a lot. Super video.

@kushalkamra3803 Год назад

Awesome ❤

@TKGZONE Год назад

I wish I got these questions in an interview 😂

@Pablo-bl7nu Год назад

cool, thnx

@samirmahmudlu Год назад

Thank you

@ukaszkiepas57 2 дня назад

thank you! :")

@shreyashachoudhary480 Год назад

Epic!

@pedepatopimenta 6 месяцев назад

Good stuff!

@judepope6196 3 месяца назад

love it

@rushikeswararaopolaki3602 Год назад

Good stuff

@111rhishishranjan2 9 месяцев назад

what is meta data at 5:10 ? can anyone explain it ??

@dirktrash3455 11 месяцев назад

Great video! I did have a question, though: how does caching work when RESTful APIs are supposed to be stateless? Doesn't that violate that principle?

@tryexponent 11 месяцев назад

Hey dirktrash3455! You are right in that RESTful APIs follow the statelessness principle, where the server doesn't store client-specific information between requests i.e. each request contains all necessary data. Caching, a performance optimization technique, stores and reuses previous responses. Therefore, caching does not violate the statelessness principle because the server's response itself is cached, not the server's state. Hope this helps!

@dirktrash3455 11 месяцев назад

@@tryexponent That's very helpful, thanks!