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 data fetching, caching, and synchronization in your React projects. Master efficient API interactions and create applications that seamlessly update with user actions.

What you'll learn:

• Efficient API Handling: Fetch data from APIs and send POST/PATCH requests with ease using React Query.
• State Management: Explore state management solutions and understand the advantages of React Query over traditional approaches like Redux.
• Caching Strategies: Implement robust caching mechanisms to improve application performance and reduce API load.
• Data Synchronization: Keep your application data consistent and up-to-date with server changes.
• Responsive App Development: Build fully responsive applications that react to user interactions and update data in the background.
• Faster Development: Develop features faster with less code by leveraging React Query's powerful capabilities.

Course Modules:

Module 1: Getting Started

• Introduction: An overview of the course and React Query's benefits.
• Prerequisites: Ensure you have the necessary knowledge and setup.
• GitHub Integration: Learn how to effectively use GitHub for project management and collaboration.

Module 2: Building a To-Do App with React Query

• Project Setup: Install React using create-react-app.
• To-Do List Creation: Develop a functional to-do list page with a new to-do form.
• Simple Server Setup: Set up a basic Node.js server for API interactions.
• Data Fetching: Implement API calls to fetch all to-dos from the server.
• Creating To-Dos: Implement API calls to create new to-do items.

Module 3: Mastering TanStack Query

• State Management Deep Dive: Explore React Query's state management approach.
• Redux vs. React Query: Understand the drawbacks of using Redux for state management.
• First Query: Implement your first query to fetch data.
• First Mutation: Implement your first mutation to modify data.
• Progress Indicators: Add progress bars to enhance the user experience.
• Component Integration: Integrate React Query with various components.
• Project Refactoring: Refactor and clean up your project for maintainability.
• Task Management: Implement a counter to track important tasks using React Query.

Module 4: Automated Testing

• Introduction to Testing: Learn the benefits of automated testing.
• Unit Testing: Write your first unit tests to ensure code quality.
• Code Coverage: Understand code coverage and generate reports.
• Migration to Vite: Migrate your project to Vite for faster development.
• Vitest Configuration: Configure Vitest for running tests.
• Testing List Components: Write tests specifically for your list component.
• V8 Code Coverage: Generate code coverage reports using V8.
• Achieving 100% Code Coverage: Strategies for reaching 100% code coverage for the list component.

Module 5: Error Handling & UX Improvements

• API Error Handling: Implement robust error handling for API requests.
• Handling API Errors: Gracefully handle various API error scenarios.
• Simulating Slow APIs: Simulate slow API connections for testing.
• Handling Slow API Connections: Implement strategies to handle slow API responses.
• Mutation Failure Handling: Handle failures during mutation operations.

Module 6: Query Keys – Best Practices

• Understanding Query Keys: Learn what query keys are and their importance.
• Query Key Best Practices: Follow best practices for creating effective query keys.
• Common Query Key Pitfalls: Avoid common mistakes when working with query keys.

Module 7: Implementing Edit Functionality

• Introduction to Editing: Implement the edit functionality for to-do items.
• Modal Implementation: Create a modal to display to-do details.
• Mutation for Editing: Use React Query mutations to edit to-do items (Part 1).
• Mutation for Editing (Part 2): Complete the implementation of mutation for editing to-do items.

Module 8: Implementing Deletion Functionality

• Introduction to Deletion: Implement the delete functionality for to-do items.
• Delete Modal Component: Create a delete modal component.
• Using DeleteModal: Integrate the delete modal into the list component.
• **CSS Styling