How to Efficiently Fetch Multiple API Data in React Native Without Empty Arrays

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How to Efficiently Fetch Multiple API Data in React Native Without Empty Arrays

When working with APIs in React Native, fetching multiple data entries can pose some challenges, especially when relying on asynchronous operations. One common issue that developers encounter is receiving an empty array when they attempt to log the data after making an API call. This often happens due to the timing of the console log in relation to the asynchronous fetch operation. In this post, we will explore a solution to this issue so that you can receive your data correctly without needing to make unnecessary edits or refreshes.

The Problem: Empty Array on Fetch API

You may have found yourself in a situation where your code looks something like this:

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

Step-by-Step Breakdown

1. Modify the useEffect Hook

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

2. Create the fetchData Function

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

3. Why This Works

All Promises are Managed: It waits for all promises inside the mapping function to be fulfilled.

Error Handling: Errors during the fetch operations can be caught in a try-catch block, making debugging easier.

Immediate State Update: Once we have gathered all responses, we can update our state, which will reflect the titles fetched from the API immediately.

Conclusion

Final Notes

If you have any questions or run into issues, feel free to reach out. Happy coding!