Re: [Firebase] Firebase Realtime table deletion issue

[Kato Richardson]

Hi Batikan,

I can't guess how your data is being deleted of course. But it's fairly easy to prevent deletion.

A simple approach is a condition like the following in your .write rule (there are a number of more complex examples on Stack Overflow):  !data.exists() || newData.exists()

If you want to enforce a schema, you can use the .validate rule with something like this: hasChildren(['foo', 'bar'])

☼, Kato

On Tue, Jun 29, 2021 at 8:42 PM Batikan Toğnaş <batika...@gmail.com> wrote:

Hi, I am managing my entire app with firebase realtime. When a subscription is sold, I update the purchaser in the users table. Sometimes I see that my users' data in the firebase table is completely deleted. What could cause this? Why can users' user table be deleted? Is it possible to prevent deletion of data from the User table?

We have to give Read and Write permission.

Example code:

if (subsControl.subscriptions == true) {
subsControl.expiredTime = subsControl.expiredTime + increasedTime;
subsControl.membership = 1;
subsControl.memberStatus = 1;
MyApplication.getInstance().setmSubs(subsControl);
mDatabaseReference.child("/users/" + getUid()).setValue(subsControl);
showProgressDialog();
addTrack(date, productid, token, orderid, signatur, deviceId, getUID);
membershipkontrol();
}

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Kato Richardson |

Developer Programs Eng |

kato...@google.com |

775-235-8398