LearnViz CompSci
Home / Learn / Software Engineering / REST

Advanced Topic 39 of 50 Software Engineering

REST

Architectural style using resources and standard HTTP verbs.

How it works

REST uses resources identified by URLs and standard methods: GET reads, POST creates, PUT/PATCH updates, DELETE removes, with stateless requests and meaningful status codes.

Where it is used

Most web APIs.

Common pitfall

Verbs in URLs and misuse of status codes.

Where it fits in the course

REST is topic 39 of 50 in Software Engineering, rated Advanced. It follows API Design. The next topic is GraphQL.

Practice and explore

How to study this topic

  1. Read the explanation above and restate the definition in your own words.
  2. Open the interactive lesson and answer its mini quiz.
  3. Read the common pitfall, then write a short example that avoids it.
  4. Check your understanding in the Software Engineering quiz, and revisit the topic if you miss a question.

Frequently asked questions

What is REST?
Architectural style using resources and standard HTTP verbs. It belongs to Software Engineering and is an advanced-level topic.
Where do people use REST?
Most web APIs.
What is the most common mistake with REST?
Verbs in URLs and misuse of status codes.
What should I learn before this topic?
Start with API Design, the topic just before it in Software Engineering.
How can I practice it?
Answer the mini quiz in the interactive lesson, then take the Software Engineering quiz.
Is REST hard to learn?
It is an Advanced topic. Expect to read the explanation more than once and to connect it with earlier topics. Working through a small example by hand helps most.
How long does it take to learn REST?
Most learners can read the explanation and finish the interactive lesson in under an hour. Fluency comes from applying the idea, so plan a few short practice sessions with the quiz.
Which topics are related to REST?
API Design, GraphQL, CQRS and Event Sourcing are closely connected. The full list is in the related topics section of this page.
What should I study after REST?
Continue with GraphQL, the next topic in Software Engineering.

Related topics