Creating [slug].tsx in Next.js Page Router: A Step-by-Step Guide

Are you tired of dealing with cumbersome URL parameters in your Next.js application? Do you want to create dynamic pages that are both SEO-friendly and easy to maintain? Look no further! In this article, we’ll dive into the world of Next.js page routing and explore the magic of creating `[slug].tsx` pages.

What is [slug].tsx?

In Next.js, `[slug].tsx` is a special type of page that allows you to create dynamic routes based on slugs or parameters. This approach enables you to generate pages on the fly, making it ideal for applications that require a high degree of flexibility and customization.

Why Use [slug].tsx?

There are several reasons why you might want to use `[slug].tsx` pages in your Next.js application:

• Dynamic Routing**: With `[slug].tsx`, you can create dynamic routes that are based on slugs or parameters, making it easy to generate pages on the fly.
• SEO-Friendliness**: By using slugs instead of query parameters, you can create URLs that are more search engine friendly and easier to read.
• Easier Maintenance**: With `[slug].tsx` pages, you can update your application’s routing without having to modify the underlying code, making maintenance a breeze.

Creating a [slug].tsx Page

To create a `[slug].tsx` page, follow these simple steps:

1. Create a New Folder**: In your Next.js project, create a new folder called `pages` (if it doesn’t already exist).
2. Create a New File**: Inside the `pages` folder, create a new file called `[slug].tsx`.

Here’s an example of what your file structure might look like:

pages
[slug].tsx

Defining the Page Component

In your `[slug].tsx` file, define a new page component using the following syntax:

import { NextPage } from 'next';

interface SlugPageProps {
  slug: string;
}

const SlugPage: NextPage<SlugPageProps> = ({ slug }) => {
  return (
    <div>
      <h1>Hello, {slug}!</h1>
    </div>
  );
};

export default SlugPage;

In this example, we’re defining a `SlugPage` component that takes a `slug` prop and displays a heading with the slug value.

Defining the getStaticProps Function

To enable server-side rendering and static site generation, you need to define a `getStaticProps` function in your `[slug].tsx` file:

import { GetStaticProps } from 'next';

export const getStaticProps: GetStaticProps = async ({ params }) => {
  const slug = params?.slug;

  return {
    props: {
      slug,
    },
  };
};

In this example, we’re using the `getStaticProps` function to fetch the `slug` parameter from the URL and pass it as a prop to our `SlugPage` component.

Configuring Next.js Routing

To enable routing for your `[slug].tsx` page, you need to update your `next.config.js` file:

module.exports = {
  //...
  trailingSlash: true,
};

In this example, we’re enabling the `trailingSlash` option to allow Next.js to append a trailing slash to URLs.

Defining Routes

To define routes for your `[slug].tsx` page, you need to update your `next.config.js` file:

module.exports = {
  //...
  async rewrites() {
    return [
      {
        source: '/:slug*',
        destination: '/[slug]',
      },
    ];
  },
};

In this example, we’re defining a route that captures any URL with a slug parameter and directs it to our `[slug].tsx` page.

Testing Your [slug].tsx Page

Now that you’ve created your `[slug].tsx` page and configured Next.js routing, it’s time to test your application:

Start your Next.js development server using the following command:

npm run dev

Open your web browser and navigate to http://localhost:3000/my-slug. You should see a page with the heading “Hello, my-slug!”.

Conclusion

In this article, we’ve explored the world of `[slug].tsx` pages in Next.js and learned how to create dynamic routes based on slugs or parameters. With this newfound knowledge, you can take your Next.js application to the next level and create dynamic, SEO-friendly pages that are both flexible and maintainable.

Remember, the key to mastering Next.js page routing is to understand the concept of slugs and how they can be used to create dynamic routes. By following the steps outlined in this article, you can unlock the full potential of Next.js and create amazing applications that wow your users.

Feature	Benefit
Dynamic Routing	Allows for flexible and customizable routing
SEO-Friendly URLs	Improves search engine ranking and readability
Easier Maintenance	Enables easy updates to routing without modifying code

By using `[slug].tsx` pages in your Next.js application, you can take advantage of dynamic routing, SEO-friendly URLs, and easier maintenance. So why wait? Start creating your own `[slug].tsx` pages today and unlock the full potential of Next.js!

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