Solving the React Routing Loop: Displaying Dynamic Coin Information According to URL

Learn how to manage React routing effectively to show accurate cryptocurrency information based on URL routes using React Router. --- This video is based on the question https://stackoverflow.com/q/69740413/ asked by the user 'Chris' ( https://stackoverflow.com/u/17262059/ ) and on the answer https://stackoverflow.com/a/69740960/ provided by the user 'Damian' ( https://stackoverflow.com/u/16119878/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: React routing loop - show the exact information according to route link Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/by-sa/4.0/ ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Understanding React Routing Loops: Displaying Coin Information When developing an application using React and React Router, one common challenge developers face is ensuring that the correct information is displayed dynamically according to the route. In this guide, we'll address a specific problem that arises when working with a list of cryptocurrencies and how to route correctly to show the relevant information for each item. If you've found yourself stuck in a routing loop, don't worry! We'll break down the solution step by step. The Problem Imagine you have an array of cryptocurrencies, each with properties like id, symbol, name, and price_usd. You want your application to navigate to a new page whenever a user clicks on a coin, and display details relevant to that coin. However, you've noticed that regardless of the selection, only the information for the first coin (Bitcoin, in this case) is being displayed on the new page. Example Code You might begin with the following setup: [[See Video to Reveal this Text or Code Snippet]] Your component may look something like this: [[See Video to Reveal this Text or Code Snippet]] When a user clicks on a coin, routing is set up to navigate to mywebsite.com/{coin.symbol}, but the CoinPage component only displays static information for Bitcoin: [[See Video to Reveal this Text or Code Snippet]] The Solution To solve this problem, you need to modify the CoinPage component to dynamically retrieve data based on the symbol in the URL. Here’s how you can achieve this: Step 1: Access Route Parameters First, you'll need to access the route parameters in the CoinPage component. React Router provides a hook called useParams which allows you to obtain the dynamic part of the URL. [[See Video to Reveal this Text or Code Snippet]] Step 2: Find the Corresponding Coin in the Array Once you have the coinSymbol, find the corresponding coin from the users array. You can use the find method to do this: [[See Video to Reveal this Text or Code Snippet]] Step 3: Render Coin Data Finally, render the coinData information: [[See Video to Reveal this Text or Code Snippet]] Conclusion By following the steps outlined above, you can navigate to different coin pages and display the correct information dynamically based on the selected coin's symbol. This approach not only improves the user experience but also leverages React Router effectively for managing routes. With this understanding, you're well on your way to mastering React routing and creating a more dynamic and engaging application. Happy coding!