15 - Master Route Data Loading In Svelte 5 - load() Function, Error Handling & Data Invalidation

Code Hub β€’ October 16, 2025
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Welcome to Part 15 of our complete SvelteKit course! In this tutorial, we dive deep into SvelteKit's powerful route data loading system using the load() function. ------------------------------------------------------------------------------------- 🎯 What You'll Learn: β€’ Understanding the load() function and how it works β€’ Implementing data fetching in SvelteKit routes β€’ Advanced data fetching patterns with parallel and dependent requests β€’ Comprehensive error handling strategies β€’ Creating custom error pages β€’ Data invalidation and revalidation techniques β€’ Building real-world examples with TypeScript ------------------------------------------------------------------------------------- πŸ“‚ Topics Covered: βœ… Basic load() function implementation βœ… Difference between +page.ts and +page.server.ts βœ… Fetching data from external APIs βœ… Handling multiple data sources simultaneously βœ… Proper error handling with status codes βœ… Creating user-friendly error pages βœ… Graceful degradation for partial failures βœ… Data invalidation with invalidate() and invalidateAll() βœ… Custom dependency keys with depends() βœ… Auto-refresh and manual data revalidation ------------------------------------------------------------------------------------- Chapters: - 00:00 Introduction 00:57 Load Functions 04:30 Advanced Data Fetching 09:40 Error Handling 16:19 Data Validation & Invalidation ------------------------------------------------------------------------------------- Related Videos: 1. Custom Role Based Authentication In Asp.net Core MVC Application - Complete Tutorial: https://youtu.be/p6X-dDx6nQY 2. Create Custom Login, Registration, Email Verify And Forgot Password Pages In Asp.Net Core MVC App: https://youtu.be/hthzKj05w3w 3. Create Role Based User Management API Using Dynamic Policies In Asp.Net Core Web API: https://youtu.be/beIEysfQxGo 4. Create Role Based User Management App In Flutter With Asp.Net Core Web API as Backend From Scratch: https://youtu.be/Jdil0z11HG4 5. Create Wallpaper App In Flutter From Scratch Using Pexels API [Complete Tutorial]: https://youtu.be/c34fAl58NE0 6. Create Camera App From Scratch In Flutter [with Flash, Camera Switching, Multiple Images Functions]: https://youtu.be/j2xMGZ1XcMo 7. Connect Flutter With Asp.Net Core Web API To Run On Emulator & Real Device: https://youtu.be/PAY6TqIEVZI ------------------------------------------------------------------------------------- πŸ“’ Stay Connected: πŸ’– Like this video if you found it helpful! πŸ“£ Share your thoughts or questions in the comments below! πŸš€ Share this video with your friends. ------------------------------------------------------------------------------------- Join WhatsApp Channel: https://whatsapp.com/channel/0029VaE0W6HA2pLH5dN39n36 Facebook Page Link: https://www.facebook.com/Free_Trained Facebook Group Link: https://www.facebook.com/groups/1746009532359857/ Please Subscribe Our YouTube Channel For More interesting Videos And Don't Forget To Share Our Channel With Your Friends. Note: *Please Turn Off Any Ad Blocker Software or add-on to support us. #html #css #javascript #sveltejs #svelte #sveltekit #framework #react #nextjs #angular #vuejs #programming #webdesign #webdevelopment #webdesigner #webdeveloper #learn #dom #events #modifiers #bubbling #propagation #advance #load #function #validation #invalidation #error #handling

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