Next.js 15 Tutorial - 7 - Dynamic Routes

Understanding Dynamic Routing in Next.js

Introduction to Nested Routes

• The discussion begins with a recap of creating nested routes using a Blog folder structure, which includes subfolders for individual pages corresponding to /blog/sl1 and /blog/sl2.

• It highlights the limitation of this approach for complex applications, leading into Scenario 4 focused on building product listing and details pages.

Building Product Listing Pages

• The implementation starts by creating a products folder in the app directory, containing a page.tsx file that displays three products.

• A simple product list is created using React components, demonstrating how to render multiple items dynamically.

Challenges with Static Folder Structures

• The speaker explores the idea of creating separate folders for each product ID but quickly identifies it as impractical due to maintenance challenges.

• This leads to the introduction of dynamic route segments as a solution for handling numerous products efficiently.

Implementing Dynamic Route Segments

• A special folder named [productID] is created within the products directory, allowing Next.js to treat it as a dynamic segment.

• This setup enables URLs like /products/1, /products/2, etc., to work seamlessly without needing individual folders for each product.

Fetching Product Details Dynamically

• Each page receives route parameters through the params prop. The type of params resolves into an object containing dynamic segments.

• By utilizing async functions, developers can access these parameters and display relevant product information based on the URL visited.

Summary of Implementation Steps

• A summary outlines that a folder with square brackets was created for dynamic routing, allowing Next.js to map any URL pattern effectively.