API Fundamentals Course
API Fundamentals
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Beginner

CRUD Operations

Definition

An acronym standing for Create, Read, Update, and Delete. These are the four basic functions of persistent storage in any database or API.

Explain Like I'm New

Almost everything you do on the internet is CRUD. Posting a tweet (Create). Scrolling your feed (Read). Editing a typo (Update). Removing a bad photo (Delete). REST APIs perfectly map these four actions to the four main HTTP Methods.

Real World Example

A Todo List app. Adding a task is Create. Viewing tasks is Read. Checking a task off is Update. Trash can icon is Delete.

Common Use Cases

  • •Database interaction
  • •API design pattern

Interactive Example

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Interview Questions

basic

  • Which HTTP method maps to the 'Create' operation in CRUD?

intermediate

  • Which HTTP method maps to the 'Read' operation?

Flash Cards

Question

Create method?

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Answer

`POST`.

Question

Read method?

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Answer

`GET`.