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In this video, you'll learn how to efficiently use React Query's useMutation hook to handle the DELETE operation for removing posts in a React app. We'll walk through setting up the mutation, updating the local cache, and ensuring the UI responds instantly. By the end, you'll understand the importance of mutate() and how it applies to real-world use cases like deleting posts. Simple, clear, and real-life examples will help you master these key concepts and improve your React projects. 💸 Get All My YouTube Videos' Source Code for just ₹249! Grab Now - https://thapatechnical.shop/source-code 🔥 Access Source Code, PPT & Notes here for Free : https://www.thapatechnical.com/2024/09/create-responsive-navbar-in-react-js.html 📺 Discover React.js History in Just 10 Minutes - https://youtu.be/MiK2bFqhg1U 📺 Watch the complete Playlist here : https://www.youtube.com/playlist?list=PLwGdqUZWnOp1Rab71vx2zMF6qpwGDB2Z1 ------------------------------------------------------------------------ 🚀 Boost Your Skills with these Pre-Requisite Videos: 🔗 Best HTML Course - https://youtu.be/5ccq_nLHneE 🔗 Best CSS Course - https://youtu.be/MSICFljRcb4 🔗 JavaScript Basics Course Part 1 - https://youtu.be/13gLB6hDHR8 🔗 JavaScript Advanced Course Part 2 - https://youtu.be/YwsOCN8woA8 ------------------------------------------------------------------------ 💸 Build Your Own E-commerce Website for Free! - https://www.thapatechnical.com/2024/03/build-complete-ecommerce-website-using.html ------------------------------------------------------------------------ ✌️ Join Us! 🚀 Become a Member: Unlock perks, free source code, and more Join Now : https://www.youtube.com/channel/UCwfaAHy4zQUb2APNOGXUCCA/join 📷 Connect on Instagram: https://www.instagram.com/thapatechnical 🗨️ Join Our Discord Server: Hang out with fellow programmers Discord Link: https://discord.gg/MdScmCsua6 ------------------------------------------------------------------------ ⌛TIMELINE⏳ 0:00 – Introduction to Pagination and Deleting Data in React 0:45 – What is useQuery vs useMutation in React Query? 1:50 – Understanding the Syntax of useMutation Hook 3:20 – Like, Share, Subscribe 3:50 – Comparing useMutation to Other Methods in React for Data Operations 4:30 – Creating a Delete Button in the PostCard Component 5:45 – Writing the Mutation Function for Deleting Posts 7:50 – Explaining How We Pass the Post ID to the Delete Function 8:30 – What is the mutate() Function and When to Use It 10:40 – Defining the Delete API Function Using Axios 12:00 – Testing if the Delete Operation Works in React 12:40 – Updating Local Cache to Reflect Deleted Data in the UI 15:00 – How onSuccess Callback Helps in Updating the Cache 16:15 – Removing Data from the Local Cache After Successful Deletion 19:30 – Difference Between TanStack Query vs React CRUD Methods 21:20 – Outro and Recap
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