Methods params are undefined on Next js Routes handlers

Methods params are undefined on Next.js Routes handlers

If you are using Next.js for your TypeScript project and you are facing the issue of undefined parameters in your route handlers, you’re not alone. This is a common problem that can occur when using Next.js with TypeScript. In this blog post, we will explore two possible solutions to this issue.

Solution 1: Using the useRouter hook

The first solution involves using the useRouter hook provided by Next.js. This hook gives you access to the router object, which contains information about the current route, including the query parameters.

Here’s an example of how you can use the useRouter hook to access the query parameters:

import { useRouter } from 'next/router';

const MyPage = () => {
  const router = useRouter();
  const { param1, param2 } = router.query;

  // Use the query parameters
  // ...
};

export default MyPage;

In this example, we import the useRouter hook from the ‘next/router’ module. We then use the useRouter hook to get the router object, which contains the query parameters. We can then destructure the query parameters and use them as needed in our component.

Solution 2: Using the getServerSideProps function

The second solution involves using the getServerSideProps function provided by Next.js. This function allows you to fetch data and pass it as props to your page component. You can also access the query parameters within this function.

Here’s an example of how you can use the getServerSideProps function to access the query parameters:

// Import necessary modules
import { GetServerSideProps } from 'next';

// Define the getServerSideProps function
export const getServerSideProps: GetServerSideProps = async (context) => {
  const { param1, param2 } = context.query;

  // Fetch data and pass it as props
  // ...

  return {
    props: {
      // Pass data as props
      // ...
    },
  };
};

// Export the page component
const MyPage = () => {
  // Use the props passed from getServerSideProps
  // ...

  return (
    // Render the component
    // ...
  );
};

export default MyPage;

In this example, we import the GetServerSideProps type from the ‘next’ module. We then define the getServerSideProps function, which receives the context object as a parameter. The context object contains the query parameters, which we can destructure and use within the function. We can fetch data and pass it as props to our page component. The page component can then use the props passed from getServerSideProps.

By using either of these solutions, you should be able to access the query parameters in your Next.js route handlers without them being undefined. Choose the solution that best fits your needs and implement it in your project.

That’s it! You should now be able to access the query parameters in your Next.js route handlers without any issues. Happy coding!

Methods params are undefined on Next js Routes handlers