Скачать или смотреть How to Pass Values from Route to Component in React JS

Learn how to easily pass route parameters to a component in React JS and make dynamic API calls based on those values.
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How to Pass Values from Route to Component in React JS

In the world of web development, enhancing user experiences often requires dynamic data rendering based on URL parameters. If you are using React JS and want to pass values from a route to a component, you'll find that this process can be quite simple and effective. In this guide, we'll explore how to pass a value through a URL and access it within a React component, making it possible to perform actions like API calls based on those values.

The Problem: Accessing URL Parameters

Imagine you're developing a reporting feature in your React application. You have a route defined as /reports/browse/[VALUE], where [VALUE] could be an identifier like an ID. For example, navigating to localhost:8000/reports/browse/1 should allow your component, ActiveReportsPage, to capture the number 1. You need to use this number in your API call to fetch specific reports.

Current Setup

Consider the following routes defined in your React Router:

[[See Video to Reveal this Text or Code Snippet]]

Your existing ActiveReportsPage component currently looks like this:

[[See Video to Reveal this Text or Code Snippet]]

The Challenge

How can you replace the hardcoded value 3 in your API call with a dynamic value taken from the URL path? Let's dive into the solution!

The Solution: Using Route Parameters

To achieve the desired functionality, you can define a route that captures the parameter from the URL. Here’s how you can do it:

Step 1: Update Your Route

First, update your route to include a parameter. Change the segment from /reports/browse to /reports/browse/:id, where :id represents the dynamic value:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Access the Parameter in Your Component

In your ActiveReportsPage, you can now access the value passed in the URL as a prop.

Here’s how to modify your component:

[[See Video to Reveal this Text or Code Snippet]]

Key Changes:

Route Parameter: Updated the route to /reports/browse/:value.

Match Prop: Access the value with this.props.match.params.value in componentDidMount.

Dynamic API Call: Replace the static 3 with the dynamic value.

Conclusion

By following the above steps, you can effectively pass values from your routes to components in React JS. This allows for more dynamic behavior based on user interactions, such as fetching specific data from APIs based on the values extracted from the URL.

Implementing this feature will give your application a significant usability boost, making it responsive to user input and providing an enriched user experience. Dive into your React application, make these modifications, and watch your reports functionality thrive!