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Скачать или смотреть Resolving the Can't access to Firebase Storage in Flutter Issue

  • vlogize
  • 2025-05-27
  • 4
Resolving the Can't access to Firebase Storage in Flutter Issue
Can't access to Firebase Storage in Flutterandroidfirebaseflutterstorage
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Описание к видео Resolving the Can't access to Firebase Storage in Flutter Issue

Discover how to solve the issue of accessing Firebase Storage in your Flutter app without authentication. Learn the easy steps to fix your code and improve functionality.
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This video is based on the question https://stackoverflow.com/q/66285615/ asked by the user 'Thabet Nadji' ( https://stackoverflow.com/u/7710402/ ) and on the answer https://stackoverflow.com/a/66292788/ provided by the user 'Thabet Nadji' ( https://stackoverflow.com/u/7710402/ ) 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: Can't access to Firebase Storage in Flutter

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.
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Resolving the Can't access to Firebase Storage in Flutter Issue

If you're working on a Flutter application and have encountered problems accessing Firebase Storage, you are not alone. Many developers face challenges while trying to interact with Firebase Storage, especially when they aim to access data stored in folders publicly. In this guide, we will explore a common problem you might encounter and how to solve it effectively.

The Problem: Access Denied to Firebase Storage

You may have written a piece of code in Flutter to access a folder in your Firebase Storage, structured similarly to the following:

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

Despite having set your files and folders to be publicly available with the following security rule:

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

You might have seen an error message in your terminal:

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

This message might make you think that authentication is necessary, which might be confusing, especially since you set your files to be publicly accessible.

Understanding the Issue

Debug Message Clarification

First and foremost, the message W/StorageUtil(28332): no auth token for request is not an error; it is a debug message. This means there's no issue with authorization thereby indicating that users do not need to authenticate to access your files. Instead, the root cause of your issue lies in how you're trying to retrieve the download URLs of your files.

The Mistake in Your Code

In your existing code, you attempted to print the download URL directly without waiting for it to be retrieved first. This caused the method to call improperly and hence, results in an unexpected output.

The Solution: Implementing Asynchronous Programming

To fix the problem, you need to ensure that you await the retrieval of the download URL before attempting to print or use it. Here's how you can modify your forEach loop accordingly:

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

Key Points to Note

Asynchronous Code: By adding async to the forEach loop, you can properly await the execution of element.getDownloadURL(). This ensures that each URL is fully retrieved before attempting to print it.

No Authentication Needed: Since you have set your Firebase Storage rules to be publicly accessible, users will not need to authenticate to access the content.

Conclusion

By understanding the nature of the debug message and adjusting your code to handle asynchronous calls properly, you'll be able to seamlessly retrieve download URLs from your Firebase storage without facing authentication issues. Now your Flutter application can access the necessary files and folders from Firebase Storage as intended!

Thank you for reading! If you have any more questions or run into other related issues, feel free to leave a comment below. Happy coding!

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