AdvancedApplied3 weeks

API Integration

Connect frontends to real backends using REST, GraphQL, async flows, validation, caching, and error handling.

Topic 17 of 24

Prerequisites

JavaScript
TypeScript
State Management

Key Concepts & Skills

REST
GraphQL
Fetch
Error handling
Runtime validation
Pagination
Optimistic updates

Learning Outcomes

Understand the core principles of REST
Configure and deploy GraphQL successfully
Troubleshoot common issues with Fetch
Understand the core principles of Error handling
Configure and deploy Runtime validation successfully
Troubleshoot common issues with Pagination
Understand the core principles of Optimistic updates

Resources

Official documentation

MDN Fetch API GraphQL learn

Community resources

Public APIs

Practice Exercises

Fetch paginated data.Validate API responses.Implement retry and error handling.

Project Task

Build a GitHub profile explorer with search, pagination, and cached results.

Quiz

What is the primary purpose of API Integration?What are the common alternatives to API Integration?How do you implement API Integration in a production environment?

Notes