Firebase error: Data requested exceeds the maximum size that can be accessed with a single request

Question

I need to export my Firabase database as JSON via the Firebase console, however when I do so I get the following message in the JSON file:

Data requested exceeds the maximum size that can be accessed with a single request

How can I fix this?

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Additional details:

This is the function I use in the console:

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EDIT:

I found this question that tried to access "too big" data from a Firebase client. I presume the two are related (Firebase limit). However I would have expected the Firebase console UI to provide that error message when exporting and ask the user whether or not to split the export in multiple files. I believe that this is a UX bug in the JSON Export functionality of the Firebase console (should be greyed out if not possible to export or should allow the user to tune the file size).

Answer 1

install Firebase CLI,then open a terminal and write down this command in order to download the whole data base

firebase database:get -o OUTPUT_FILE_NAME.json /

Answer 2

The Firebase Console has limits on the size of data it allows to export. The export link should indeed be disabled when you're displaying a location that is too big to export through the console.

If your database is under 256MB, you can export it with a CURL request:

curl "https://yours.firebaseio.com//.json?print=pretty&auth=CREDENTIAL"

See the documentation on the REST API.

If that also doesn't work, you'll have to download the data in chunks. A tool that might be helpful with that is: https://github.com/alexklibisz/firebak

See also:

• Is it possible to backup Firebase DB?
• Loading Bulk data in Firebase
• How to migrate data & settings from one firebase to another?