How to get a list of all files in Cloud Storage in a Firebase app?
Since Mar 2017: With the addition of Firebase Cloud Functions, and Firebase's deeper integration with Google Cloud, this is now possible.
With Cloud Functions you can use the Google Cloud Node package to do epic operations on Cloud Storage. Below is an example that gets all the file URLs into an array from Cloud Storage. This function will be triggered every time something's saved to google cloud storage.
Note 1: This is a rather computationally expensive operation, as it has to cycle through all files in a bucket / folder.
Note 2: I wrote this just as an example, without paying much detail into promises etc. Just to give an idea.
I hope this will give you the general idea. For better cloud functions examples, check out Google's Github repo full of Cloud Functions samples for Firebase. Also check out their Google Cloud Node API Documentation
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