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Learn how to send user input from a search bar on one `NextJS` page to another for processing, including API requests.
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How to Send Data to Another NextJS Page with Ease

In web development, there's a common task you may encounter: allowing users to search for content and then processing that data on another page. If you're using NextJS, you might have questions about how to send data, such as user input from a search bar on one page to another page that processes that input and potentially communicates with an API.

In this guide, we'll explore a straightforward solution to achieve this, focusing on the structure of your NextJS application and how to make use of query parameters effectively.

Understanding the Problem

Imagine a user wants to search for an article or product using a search bar on a homepage. After entering their query, they need to be directed to another page where this input is utilized to fetch relevant data from an API. This process essentially involves:

User input via a search form.

Navigation to a new page with the input.

The target page requesting data based on the input.

Example Scenario

To illustrate this, consider the following file structure in a NextJS application:

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index.js: This will contain the search form.

q.js: This will be the page that processes the input.

Setting Up Your NextJS Pages

Step 1: Implement the Search Form in index.js

A proper setup requires the search form to send data as query parameters. Here’s how to set up your index.js file:

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The action attribute in the form should point to the target page (./search/q).

Using the method="get" allows the input data to be sent as query parameters.

Step 2: Retrieve Data on the Target Page (q.js)

You can fetch and process the data in q.js by utilizing getServerSideProps. Here’s an example of how to do this:

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Using getServerSideProps: This function runs on the server side before rendering your page, allowing you to access the query parameters (in this case, query.search).

API Request: Here, you’ll use the input query to fetch data from your API and pass it as props to your component.

Conclusion

By following these steps, you'll be able to effectively transport user input from a search bar on one NextJS page to another page that processes that input through API calls. Remember:

Use a search form with the correct action and method.

Utilize getServerSideProps to handle data fetching based on query parameters.

This method not only improves the functionality of your web application but also enhances user experience by providing timely and relevant results. Happy coding!