Write in the Database from within the database

Question

Hopefully the title is clear, I couldn't find a better name but if someone can improve it please update it, thanks.

I would like the Firebase database to write on a node if a certain condition is met. For example, if one node receives an input from a client (say an angular app) then another node in the database should write certain data, something like a callback that is fired when a node receives some data.

I know there are 4 rule types (.read .write .validate .indexOn), what I am thinking of is some kind of .callback rule that is fired and writes on a node after some other node has received an input.

Obviously this can be achieved via a server side script but Firebase is about a server-less approach so I am trying to understand what are its current limits and what I can do with it.

Thanks for your responses

Possible duplicate of Can I host a listener on Firebase?

Frank van Puffelen
– Frank van Puffelen

2016-07-22 15:03:08 +00:00
Commented Jul 22, 2016 at 15:03 — Frank van Puffelen
– Frank van Puffelen, Commented Jul 22, 2016 at 15:03

Community · Accepted Answer · 2017-05-23 11:44:17Z

1

firebaser here

Running the multi-location update client-side or on a server-side process that you control are currently the only ways to accomplish this.

There is currently no way to trigger updates based on modifications to the database on Firebase servers. It is no big secret that we've been working on such functionality for a while now, but we have made no announcement as to when that will be available.

Also see Can I host a listener on Firebase?, which (I realize now) is probably a duplicate.

edited May 23, 2017 at 11:44

CommunityBot

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answered Jul 22, 2016 at 15:02

Frank van Puffelen

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