@ryanmcdermott - PR welcome!

@brentvatne Would love to! Do you know if AsyncStorage lacks a storage cap in Android as well?

@ryanmcdermott - not sure actually, cc @kmagiera

I believe @andreicoman11 has been changing this recently

On android we set a limit of 6mb.

Any reason not to set it to something like 100-500MB? Micro SD cards these days are easily 16-64GB.

+1 for a bigger default than 6MB

I think android and iOS deal with this differently. On android, cache information should not be stored in databases, but in files in designated cache folders which can then be cleaned up when necessary. Databases should be used to store information that is absolutely necessary for the app, information that cannot be automatically reclaimed by the system.
With that in mind, a database should not need to grow bigger then the limit set right now.
However, since there's no way to use any other caching mechanism from within react native, an intermediate solution would be to make it possible to database size limit configurable.
PS: android devices are much more prone to memory issues than iOS devices. Even with the possibility of extra micro SD cards, many android devices will regularly run into problems with not having enough memory for caching purposes. Apps should be designed in such a way to properly deal with this.
PPS: careful with storing any sort of information on SD cards! Any user data stored on the SD card has to be properly encrypted (our database for example is not encrypted). Otherwise, you can run into privacy violation issues.

I think this is still relevant.
If you give us only 6MB, then i'd somehow like to know how much free space I still have. Nowhere in the API can i find something like that. What will happen when i hit the limit? Will it just throw an error?

Could we have bigger size of async storage? Or at least make it configurable? 6mb is kind of nothing for modern phones.

You can set the maximum size of the database via setMaximumSize.
As mentioned before, careful with doing this. If you need more than 6MB to be stored in the database (not in cache, which is a different issue), then you are most likely doing something wrong.

@andreicoman11 can you please give some advice as to where should I call setMaximumSize in a project?

@andreicoman11 Why shouldn't apps store more than 6MB in their local databases? Seems true under the assumption of relatively light clients. P2P applications, however, might well expect to save more than 6MB worth of data (as one example)

BTW @kapv89, I haven't tried this out, but looks like you can call ReactDatabaseSupplier.getInstance(getApplicationContext()).setMaximumSize(/*x bytes*/) in your main Activity

Ref: https://github.com/facebook/react-native/blob/0.33-stable/ReactAndroid/src/main/java/com/facebook/react/modules/storage/ReactDatabaseSupplier.java#L55