TanStack Query Mastery: From Zero to Advanced [2025 Edition]

Learn to build dynamic and responsive web applications with TanStack Query (React Query)! This comprehensive course dives into using React Query, a powerful library for simplifying API interactions in React. You'll discover how to efficiently fetch data, manage cache, and synchronize data across your application, leading to faster development and a smoother user experience.

What you'll learn:

• Efficient API Handling: Master fetching data from APIs and sending POST/PATCH requests with ease.
• Data Synchronization: Keep your components seamlessly updated with data changes in the background.
• Improved App Responsiveness: Create fully responsive applications that react to user interactions and update data on the server.
• Faster Development: Build features with less code and increased efficiency using React Query.

Course Modules:

Module 1: Getting Started

• Introduction to React Query and its benefits.
• Prerequisites and setup instructions.
• Navigating GitHub repositories for project management.

Module 2: Building a To-Do App with React & Node.js

• Setting up a React project with create-react-app.
• Creating a To-Do list page and a To-Do form.
• Building a simple Node.js server to serve data.
• Implementing API calls to fetch and create To-Do items.

Module 3: Mastering TanStack Query (React Query)

• Understanding state management solutions and their pros/cons.
• Exploring the drawbacks of using Redux for state management.
• Implementing your first query in React Query to fetch data.
• Implementing your first mutation in React Query to modify data.
• Adding a progress bar to visualize data loading.
• Implementing additional components to enhance React Query usage.
• Refactoring and cleaning up your project for maintainability.
• Using React Query to manage important tasks with a counter.

Module 4: Automated Testing

• Understanding the fundamentals of automated testing.
• Benefits of test automation for improved code quality.
• Writing your first unit test.
• Understanding Code Coverage and generating reports.
• Migrating your project to Vite for faster development.
• Vite and Vitest configuration for running tests.
• Writing tests for list components.
• Generating Code Coverage reports with V8.
• Achieving 100% Code Coverage for the list component.

Module 5: Error Handling & UX Improvements

• Implementing robust API error handling.
• Strategies for handling API errors gracefully.
• Simulating slow API connections for testing.
• Handling slow API connections for a better user experience.
• Managing mutation failures and providing informative feedback.

Module 6: Deep Dive into Query Keys

• Understanding the purpose and importance of Query Keys.
• Best practices for using Query Keys effectively.
• Common pitfalls to avoid when working with Query Keys.

Module 7: Implementing Edit Functionality with Mutations

• Introducing the edit feature using mutations.
• Implementing a modal to display To-Do details.
• Using React Query mutations to edit To-Do items (Part 1).
• Using React Query mutations to edit To-Do items (Part 2).

Module 8: Implementing Delete Functionality with Mutations

• Introducing the delete feature using mutations.
• Implementing a Delete Modal component.
• Using the DeleteModal in the ListComponent.
• CSS adjustments for action buttons.

Module Conclusion:

• Overview of the completed To-Do application.
• Key takeaways and next steps.

Join us on this journey to become proficient in using TanStack Query for building scalable and efficient React applications!