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Solving Multiple Requests in React with Axios

Discover how to handle multiple Axios requests in React effectively, avoiding errors like request limits and ensuring smooth component rendering. --- This video is based on the question https://stackoverflow.com/q/73927913/ asked by the user 'maciek_pl1234' ( https://stackoverflow.com/u/19411532/ ) and on the answer https://stackoverflow.com/a/73928392/ provided by the user 'maciek_pl1234' ( https://stackoverflow.com/u/19411532/ ) 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 js, axios - multiple request Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Solving Multiple Requests in React with Axios When working with APIs in React, developers often encounter issues like sending multiple requests unintentionally. This can lead to errors, including exceeding request limits, which results in frustrating application behavior. In this guide, we’ll explore a common issue seen while using Axios for making API calls in a React component and how to effectively resolve it. The Problem In a recent project, a developer faced a peculiar problem where multiple Axios GET requests were being triggered instead of just one. This issue was identified when the developer noticed excessive network requests being logged in the console and eventually getting an error indicating that the request limit had been exceeded. The problem typically arises when the API fetching function is executed each time the component renders, possibly due to state updates or life cycle methods being improperly handled. The Solution The primary solution to this problem involves ensuring that Axios requests are only made once when the component is first mounted. Below, we will break down the solution into clear, organized steps: 1. Move Axios Function Calls The most effective way to handle this issue is by relocating the axios.get function outside the render method of the component. This prevents it from being triggered on every render cycle. This idea can be achieved using the componentDidMount lifecycle method correctly. Example Implementation: In the original code snippet, the problematic axios.get was embedded within a function that was called in the render cycle. Here’s how you can simplify it: [[See Video to Reveal this Text or Code Snippet]] 2. Setting State Appropriately As you fetch data from your API, make sure to manage your component state responsibly. The method to set state should only occur if valid data is returned. In the fetchData method, ensure that you check the validity of the results before calling this.votesStateSet. 3. Avoiding Unnecessary State Updates It’s also important to ensure that state updates are needed before calling them. React’s state management will cause re-renders every time the state is updated. Here’s how to manage this: [[See Video to Reveal this Text or Code Snippet]] This method will properly update the state only when there’s new information to reflect. Conclusion By moving the Axios request out of the render method and ensuring it only executes once when the component mounts, we've effectively solved the issue of multiple requests being sent in our React application. This practice not only improves the performance of the application but also minimizes errors related to API limits. Incorporating these strategies will help you create more efficient React components that manage API requests effectively while maintaining the intended user experience. Happy coding!