API Architectural Styles Courses and Certifications

Products API: CRUD, Search, and Pagination

Build a products API with create, fetch, safe partial updates, and soft-delete while mapping validation and conflicts to HTTP status codes.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Carts API: Line Items, Totals, and Inventory Snapshots

Build cart REST endpoints that add, update, and delete line items while computing totals, validating requests, enforcing inventory, and returning correct HTTP statuses.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Orders API: Checkout Workflow and Order State Transitions

Implement a transactional checkout and orders backend with listing endpoints and pay/cancel state transitions.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Products API: CRUD, Search, and Pagination

Build a products API with CRUD endpoints, search, pagination, validation, conflict handling, and archiving.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Orders API: Checkout Workflow and Order State Transitions

Implement transactional checkout, order retrieval endpoints, and validated pay/cancel state transitions in a backend Orders API.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Tax API: Country-Based Rates and Checkout Snapshots

Implement country-based tax rates, real-time cart totals, and checkout tax snapshots in an e-commerce backend.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Career Certificate

Comprehensive Intro to GraphQL in Ruby

A Ruby-focused GraphQL course spanning schema design, mutations, advanced data-fetching patterns, API integration, real-time data, and authentication.

• CodeSignal
• 5 hours
• Self-Paced
• Free Certificate

Handling Data with POST, PUT, PATCH and DELETE

Build Remix API handlers that create, retrieve, update, partially update, and delete user resources with POST, PUT, PATCH, and DELETE.

• CodeSignal
• 1 hour
• Self-Paced
• Free Certificate

Building the Recipe API with Codex: Retrieval, Search, and Filter

Use Codex to build and refine Flask RESTful recipe APIs for paginated retrieval, ingredient search, random picks, rankings, and duplicate cleanup.

• CodeSignal
• 2 hours
• Self-Paced
• Free Certificate

Introduction to REST APIs for Absolute Beginners

8528 ratings at Udemy

Learn how to use Postman to build REST & GraphQL requests

• Udemy
• 3 hours 24 minutes
• Self-Paced
• Paid Course

Software Architecture: REST API Design - The Complete Guide

6165 ratings at Udemy

Become a better Software Architect by designing professional, easy to use and attractive REST API

• Udemy
• 3 hours 54 minutes
• Self-Paced
• Paid Course

GraphQL by Example

6126 ratings at Udemy

Learn GraphQL by writing full-stack JavaScript applications with Node.js, Express, Apollo Server, React, Apollo Client.

• Udemy
• 8 hours 16 minutes
• Self-Paced
• Paid Course

The Modern GraphQL Bootcamp (with Node.js and Apollo)

5743 ratings at Udemy

Learn how to build GraphQL applications using Node.js. Includes Prisma v1, authentication, Apollo Client, and more!

• Udemy
• 23 hours 25 minutes
• Self-Paced
• Paid Course

RESTful Web Services with Spring Framework - A quick start

4775 ratings at Udemy

A quick start to building your REST API with Spring Boot and Spring MVC

• Udemy
• 2 hours 58 minutes
• Self-Paced
• Free Online Course

GraphQL API with Java Spring Boot & Spring Framework

3502 ratings at Udemy

GraphQL API with Java Spring Boot & Spring Data JPA and MySQL. Learn GraphQL Query, Mutation, Schema, Resolver, Edge

• Udemy
• 5 hours 12 minutes
• Self-Paced
• Paid Course