How to modify array values in firebase realtime database in react native

Question

Here I want to modify value of ADDRESS Field. Here the value 1R6RsMMgQ.... represents the uid of each user. Here I am able to reach upto userDetails but I am unable to go to address key for modifying the value. Here the -MXcKsJV... value is the array key value which is generated at the time of pushing the value to database using the push() method.

I tried to update the value by writing this query

firebase.database().ref(`/user/${uid}/userDetails/`).update({address: 'change'})

By writing this query I would update the userDetails child but this would not been reflected in the array (i.e. -MXcKs... array)

Can anyone suggest me how to do this?

What is the meaning of the push key (-MXcK level in your database? Are you looking to store multiple addresses per user? If the answer to that is "yes", then which of the user's addresses are your looking to update? — Frank van Puffelen
– Frank van Puffelen, Commented Apr 8, 2021 at 14:20
Yes there will be multiple addresses per user and these address updation depends on users choice. — Jeet Mehta
– Jeet Mehta, Commented Apr 9, 2021 at 15:06
In that case: how can we know the user's choice? Do you have the -M... key they selected in a variable somewhere? — Frank van Puffelen
– Frank van Puffelen, Commented Apr 9, 2021 at 15:08
That's all fine, but we have no way with the code you shared to know which child node (-M...) to update. — Frank van Puffelen
– Frank van Puffelen, Commented Apr 9, 2021 at 17:40

Lucas Pacheco · Accepted Answer · 2021-04-08 14:29:19Z

1

Your ref is to /user/1R6.../userDetails/ and not /user/1R6.../userDetails/-MXcK... You have to update your ref or fix your data structure.

answered Apr 8, 2021 at 14:29

Lucas Pacheco

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