Handling Firebase data delete

hello dears
my question about Firebase data delete, we can handle data change but when data is deleted “Data changed” block not work it works only when data added or changed. how can we handle data deletion?

thank you

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i think data changed will work for that, because data deleted is not seen or used yet by anyone

I’m not so sure I understood the question, but if your data is suddenly deleted, it seems that some user in the application is sending a value with a blank tag

no, data changed block dont handle the data deletion. it only handle data adding or modifing.

question is different. question is how can we handle the situation when user delete some tag. if user add tag, or change the value of tag then data changed block works. but when you delete the tag there is no any block to handle that

then we have to ask for adding this feature for firebase,

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