Multiple singleValueEventListeners in Firebase Realtime Database












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I have a node in a realtime database which contains 100 objects. For a particular use case, I need to download specific objects (50-90 objects) from the collection.



Should I download each object separately using singleValueEventListener on each object or should I download the whole collection at once and use only the objects required.



Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth, to the extent that downloading the whole collection at once using only one singleValueEventListener cost me less download bandwidth?










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  • You are speaking about a collection in Cloud Firestore?

    – Alex Mamo
    Mar 4 '18 at 13:56






  • 1





    firebase.google.com/docs/database/admin/retrieve-data please read about addValue..... event

    – Zaid Mirza
    Mar 4 '18 at 13:57













  • "Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth...?" Nope, not really. See stackoverflow.com/questions/35931526/…

    – Frank van Puffelen
    Mar 4 '18 at 15:14
















0















I have a node in a realtime database which contains 100 objects. For a particular use case, I need to download specific objects (50-90 objects) from the collection.



Should I download each object separately using singleValueEventListener on each object or should I download the whole collection at once and use only the objects required.



Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth, to the extent that downloading the whole collection at once using only one singleValueEventListener cost me less download bandwidth?










share|improve this question

























  • You are speaking about a collection in Cloud Firestore?

    – Alex Mamo
    Mar 4 '18 at 13:56






  • 1





    firebase.google.com/docs/database/admin/retrieve-data please read about addValue..... event

    – Zaid Mirza
    Mar 4 '18 at 13:57













  • "Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth...?" Nope, not really. See stackoverflow.com/questions/35931526/…

    – Frank van Puffelen
    Mar 4 '18 at 15:14














0












0








0








I have a node in a realtime database which contains 100 objects. For a particular use case, I need to download specific objects (50-90 objects) from the collection.



Should I download each object separately using singleValueEventListener on each object or should I download the whole collection at once and use only the objects required.



Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth, to the extent that downloading the whole collection at once using only one singleValueEventListener cost me less download bandwidth?










share|improve this question
















I have a node in a realtime database which contains 100 objects. For a particular use case, I need to download specific objects (50-90 objects) from the collection.



Should I download each object separately using singleValueEventListener on each object or should I download the whole collection at once and use only the objects required.



Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth, to the extent that downloading the whole collection at once using only one singleValueEventListener cost me less download bandwidth?







android firebase firebase-realtime-database






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 24 '18 at 14:27









Mostafa Arian Nejad

6391821




6391821










asked Mar 4 '18 at 13:52









Haneesh BhardwajHaneesh Bhardwaj

574




574













  • You are speaking about a collection in Cloud Firestore?

    – Alex Mamo
    Mar 4 '18 at 13:56






  • 1





    firebase.google.com/docs/database/admin/retrieve-data please read about addValue..... event

    – Zaid Mirza
    Mar 4 '18 at 13:57













  • "Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth...?" Nope, not really. See stackoverflow.com/questions/35931526/…

    – Frank van Puffelen
    Mar 4 '18 at 15:14



















  • You are speaking about a collection in Cloud Firestore?

    – Alex Mamo
    Mar 4 '18 at 13:56






  • 1





    firebase.google.com/docs/database/admin/retrieve-data please read about addValue..... event

    – Zaid Mirza
    Mar 4 '18 at 13:57













  • "Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth...?" Nope, not really. See stackoverflow.com/questions/35931526/…

    – Frank van Puffelen
    Mar 4 '18 at 15:14

















You are speaking about a collection in Cloud Firestore?

– Alex Mamo
Mar 4 '18 at 13:56





You are speaking about a collection in Cloud Firestore?

– Alex Mamo
Mar 4 '18 at 13:56




1




1





firebase.google.com/docs/database/admin/retrieve-data please read about addValue..... event

– Zaid Mirza
Mar 4 '18 at 13:57







firebase.google.com/docs/database/admin/retrieve-data please read about addValue..... event

– Zaid Mirza
Mar 4 '18 at 13:57















"Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth...?" Nope, not really. See stackoverflow.com/questions/35931526/…

– Frank van Puffelen
Mar 4 '18 at 15:14





"Would the multiple singleValueEvenyListeners induce a lot of overhead bandwidth...?" Nope, not really. See stackoverflow.com/questions/35931526/…

– Frank van Puffelen
Mar 4 '18 at 15:14












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