13 REST API Interview Questions You Need to Know

There are 56 REST API interview questions in DataCamp's full guide. This video covers the 13 that come up again and again, with the real code and comparison tables on screen, not just a list read aloud. Whether you're prepping for a backend, full-stack, or platform engineering role, these are the REST API questions that come up most, pulled from DataCamp's full list of 56 (link below for the rest, plus every quick-reference table). CHAPTERS 0:00 Intro 0:18 The Fundamentals 2:45 The Ones People Mix Up 4:32 Backend Reality 5:42 Full Stack Gotchas 7:05 When REST Isn't the Answer QUESTIONS COVERED, WITH TIMESTAMPS 0:21 What is REST and what are its constraints? 1:01 REST vs. SOAP 1:33 PUT vs. POST 1:59 Idempotency: which HTTP methods are idempotent? 2:48 401 vs. 403 3:10 How do you implement pagination? 3:33 API versioning strategies 3:59 What is HATEOAS? 4:35 The N+1 query problem 5:03 Caching strategies 5:45 CORS preflight and secure config 6:30 WebSockets vs. SSE 7:07 When would you NOT use REST? RESOURCES Full list of 56 REST API interview questions (with every table): https://www.datacamp.com/blog/rest-api-interview-questions?utm_medium=organic_social&utm_source=youtube&utm_campaign=000000_1-rest-api-interview-questions_2-b2c_3-all_5-bl_8-ogsl-yt_10-bau Go deeper with the track: Building APIs in Python: https://www.datacamp.com/tracks/building-apis-in-python?utm_medium=organic_social&utm_source=youtube&utm_campaign=000000_1-rest-api-interview-questions_2-b2c_3-all_7-le_8-ogsl-yt_10-bau Want more interview prep like this? Subscribe for the next one. #RESTAPI #BackendInterview #DataCamp