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Does firebase datasnapshot download the data when we invoke getValue?
How to isolate data by groups of users in firebaseHow can I find a node's children count without downloading the data in FirebaseFirebase - App developing - calculate the delta without generating a high data trafficFirebase query implementationObserve particular data sets of FirebaseIssue exporting large json data from firebase with CurlDataSnapshot Firebase: Getvalue return nullDataSnapshot getValue() in Firebase returns nullFirebase cloud functions query for large datasetWhat does a firebase index do under the hood?
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Does firebase datasnapshot download the data when we invoke getValue
or does it behave more like a container that contains the whole tree structure referenced in database reference?
I need to perform an Or operation but according to the documentation that's not allowed. So I figured I would download the data I need from the narrowest node, and perform the filtering locally. The problem is that even then the data might eventually grow large if I have to download all of it and filter locally. So, if datasnapshot downloads the data when we invoke get value I could safely ignore the need to make a complex query to firebase.
firebase firebase-realtime-database
edited Mar 29 at 5:49
KENdi
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asked Mar 28 at 21:55
vander ouanavander ouana
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add a comment
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Does firebase datasnapshot download the data when we invoke getValue
or does it behave more like a container that contains the whole tree structure referenced in database reference?
I need to perform an Or operation but according to the documentation that's not allowed. So I figured I would download the data I need from the narrowest node, and perform the filtering locally. The problem is that even then the data might eventually grow large if I have to download all of it and filter locally. So, if datasnapshot downloads the data when we invoke get value I could safely ignore the need to make a complex query to firebase.
firebase firebase-realtime-database
edited Mar 29 at 5:49
KENdi
6,2452 gold badges10 silver badges22 bronze badges
asked Mar 28 at 21:55
vander ouanavander ouana
41 silver badge1 bronze badge
add a comment
|
Does firebase datasnapshot download the data when we invoke getValue
or does it behave more like a container that contains the whole tree structure referenced in database reference?
I need to perform an Or operation but according to the documentation that's not allowed. So I figured I would download the data I need from the narrowest node, and perform the filtering locally. The problem is that even then the data might eventually grow large if I have to download all of it and filter locally. So, if datasnapshot downloads the data when we invoke get value I could safely ignore the need to make a complex query to firebase.
firebase firebase-realtime-database
edited Mar 29 at 5:49
KENdi
6,2452 gold badges10 silver badges22 bronze badges
asked Mar 28 at 21:55
vander ouanavander ouana
41 silver badge1 bronze badge
Does firebase datasnapshot download the data when we invoke getValue
or does it behave more like a container that contains the whole tree structure referenced in database reference?
I need to perform an Or operation but according to the documentation that's not allowed. So I figured I would download the data I need from the narrowest node, and perform the filtering locally. The problem is that even then the data might eventually grow large if I have to download all of it and filter locally. So, if datasnapshot downloads the data when we invoke get value I could safely ignore the need to make a complex query to firebase.
firebase firebase-realtime-database
firebase firebase-realtime-database
edited Mar 29 at 5:49
KENdi
6,2452 gold badges10 silver badges22 bronze badges
asked Mar 28 at 21:55
vander ouanavander ouana
41 silver badge1 bronze badge
edited Mar 29 at 5:49
KENdi
6,2452 gold badges10 silver badges22 bronze badges
asked Mar 28 at 21:55
vander ouanavander ouana
41 silver badge1 bronze badge
edited Mar 29 at 5:49
KENdi
6,2452 gold badges10 silver badges22 bronze badges
edited Mar 29 at 5:49
KENdi
6,2452 gold badges10 silver badges22 bronze badges
edited Mar 29 at 5:49
KENdi
6,2452 gold badges10 silver badges22 bronze badges
6,2452 gold badges10 silver badges22 bronze badges
asked Mar 28 at 21:55
vander ouanavander ouana
41 silver badge1 bronze badge
asked Mar 28 at 21:55
vander ouanavander ouana
41 silver badge1 bronze badge
asked Mar 28 at 21:55
vander ouanavander ouana
41 silver badge1 bronze badge
41 silver badge1 bronze badge
add a comment
|
add a comment
|
1 Answer
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When you call getValue, then entire contents of the node is downloaded and becomes available. In that sense, there are no "shallow" queries exposed by the mobile client SDKs. (Though the REST API does support shallow queries that don't download all the child nodes.)
As you've identified, this can change the way that you might want to organize your data. Shallow data structures are typically preferred in Realtime Database for this reason.
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
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1 Answer
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1 Answer
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When you call getValue, then entire contents of the node is downloaded and becomes available. In that sense, there are no "shallow" queries exposed by the mobile client SDKs. (Though the REST API does support shallow queries that don't download all the child nodes.)
As you've identified, this can change the way that you might want to organize your data. Shallow data structures are typically preferred in Realtime Database for this reason.
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
117k13 gold badges143 silver badges165 bronze badges
add a comment
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When you call getValue, then entire contents of the node is downloaded and becomes available. In that sense, there are no "shallow" queries exposed by the mobile client SDKs. (Though the REST API does support shallow queries that don't download all the child nodes.)
As you've identified, this can change the way that you might want to organize your data. Shallow data structures are typically preferred in Realtime Database for this reason.
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
117k13 gold badges143 silver badges165 bronze badges
add a comment
|
When you call getValue, then entire contents of the node is downloaded and becomes available. In that sense, there are no "shallow" queries exposed by the mobile client SDKs. (Though the REST API does support shallow queries that don't download all the child nodes.)
As you've identified, this can change the way that you might want to organize your data. Shallow data structures are typically preferred in Realtime Database for this reason.
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
117k13 gold badges143 silver badges165 bronze badges
When you call getValue, then entire contents of the node is downloaded and becomes available. In that sense, there are no "shallow" queries exposed by the mobile client SDKs. (Though the REST API does support shallow queries that don't download all the child nodes.)
As you've identified, this can change the way that you might want to organize your data. Shallow data structures are typically preferred in Realtime Database for this reason.
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
117k13 gold badges143 silver badges165 bronze badges
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
117k13 gold badges143 silver badges165 bronze badges
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
117k13 gold badges143 silver badges165 bronze badges
answered Mar 28 at 22:00
Doug StevensonDoug Stevenson
117k13 gold badges143 silver badges165 bronze badges
117k13 gold badges143 silver badges165 bronze badges
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add a comment
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