firebase.database () multiple instances











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1
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I am using firebase realtime database and I was wondering which is a better pattern regarding



firebase.database() 


is it considered bad practice to have multiple instances of this. Is it better if I have a single instance of the database which is exported within the node app. Or is it basically the same thing to create a new instance for every single action creator file.



import * as firebase from 'firebase';

firebase.initializeApp(config);
export const provider = new firebase.auth.GoogleAuthProvider();
export const auth = firebase.auth();
export default firebase;


I have this approach for the firebase app instance and I am unsure if a similar pattern is required for the database instance as well. There weren't any specifications within the firebase docs.










share|improve this question


























    up vote
    1
    down vote

    favorite












    I am using firebase realtime database and I was wondering which is a better pattern regarding



    firebase.database() 


    is it considered bad practice to have multiple instances of this. Is it better if I have a single instance of the database which is exported within the node app. Or is it basically the same thing to create a new instance for every single action creator file.



    import * as firebase from 'firebase';

    firebase.initializeApp(config);
    export const provider = new firebase.auth.GoogleAuthProvider();
    export const auth = firebase.auth();
    export default firebase;


    I have this approach for the firebase app instance and I am unsure if a similar pattern is required for the database instance as well. There weren't any specifications within the firebase docs.










    share|improve this question
























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I am using firebase realtime database and I was wondering which is a better pattern regarding



      firebase.database() 


      is it considered bad practice to have multiple instances of this. Is it better if I have a single instance of the database which is exported within the node app. Or is it basically the same thing to create a new instance for every single action creator file.



      import * as firebase from 'firebase';

      firebase.initializeApp(config);
      export const provider = new firebase.auth.GoogleAuthProvider();
      export const auth = firebase.auth();
      export default firebase;


      I have this approach for the firebase app instance and I am unsure if a similar pattern is required for the database instance as well. There weren't any specifications within the firebase docs.










      share|improve this question













      I am using firebase realtime database and I was wondering which is a better pattern regarding



      firebase.database() 


      is it considered bad practice to have multiple instances of this. Is it better if I have a single instance of the database which is exported within the node app. Or is it basically the same thing to create a new instance for every single action creator file.



      import * as firebase from 'firebase';

      firebase.initializeApp(config);
      export const provider = new firebase.auth.GoogleAuthProvider();
      export const auth = firebase.auth();
      export default firebase;


      I have this approach for the firebase app instance and I am unsure if a similar pattern is required for the database instance as well. There weren't any specifications within the firebase docs.







      node.js firebase firebase-realtime-database






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      share|improve this question











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      share|improve this question










      asked Nov 19 at 22:43









      Saccarab

      1029




      1029
























          1 Answer
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          up vote
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          down vote



          accepted










          Every time you call one of the product methods on the firebase object that you get from the import, it will give you exactly the same object in return. So, every time you call firebase.auth(), you'll get the same thing back, and every time you call firebase.database(), you'll get the same thing. How you want to manage those instances is completely your preference.






          share|improve this answer





















          • I was just wondering if there are any downsides to have multiple instances of a database instance
            – Saccarab
            Nov 20 at 0:24










          • My answer is saying that there are not actually multiple instances. There is one instance, and you're holding a reference to it in multiple places. Each reference takes a few bytes.
            – Doug Stevenson
            Nov 20 at 0:31











          Your Answer






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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          3
          down vote



          accepted










          Every time you call one of the product methods on the firebase object that you get from the import, it will give you exactly the same object in return. So, every time you call firebase.auth(), you'll get the same thing back, and every time you call firebase.database(), you'll get the same thing. How you want to manage those instances is completely your preference.






          share|improve this answer





















          • I was just wondering if there are any downsides to have multiple instances of a database instance
            – Saccarab
            Nov 20 at 0:24










          • My answer is saying that there are not actually multiple instances. There is one instance, and you're holding a reference to it in multiple places. Each reference takes a few bytes.
            – Doug Stevenson
            Nov 20 at 0:31















          up vote
          3
          down vote



          accepted










          Every time you call one of the product methods on the firebase object that you get from the import, it will give you exactly the same object in return. So, every time you call firebase.auth(), you'll get the same thing back, and every time you call firebase.database(), you'll get the same thing. How you want to manage those instances is completely your preference.






          share|improve this answer





















          • I was just wondering if there are any downsides to have multiple instances of a database instance
            – Saccarab
            Nov 20 at 0:24










          • My answer is saying that there are not actually multiple instances. There is one instance, and you're holding a reference to it in multiple places. Each reference takes a few bytes.
            – Doug Stevenson
            Nov 20 at 0:31













          up vote
          3
          down vote



          accepted







          up vote
          3
          down vote



          accepted






          Every time you call one of the product methods on the firebase object that you get from the import, it will give you exactly the same object in return. So, every time you call firebase.auth(), you'll get the same thing back, and every time you call firebase.database(), you'll get the same thing. How you want to manage those instances is completely your preference.






          share|improve this answer












          Every time you call one of the product methods on the firebase object that you get from the import, it will give you exactly the same object in return. So, every time you call firebase.auth(), you'll get the same thing back, and every time you call firebase.database(), you'll get the same thing. How you want to manage those instances is completely your preference.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 19 at 23:03









          Doug Stevenson

          68.2k880100




          68.2k880100












          • I was just wondering if there are any downsides to have multiple instances of a database instance
            – Saccarab
            Nov 20 at 0:24










          • My answer is saying that there are not actually multiple instances. There is one instance, and you're holding a reference to it in multiple places. Each reference takes a few bytes.
            – Doug Stevenson
            Nov 20 at 0:31


















          • I was just wondering if there are any downsides to have multiple instances of a database instance
            – Saccarab
            Nov 20 at 0:24










          • My answer is saying that there are not actually multiple instances. There is one instance, and you're holding a reference to it in multiple places. Each reference takes a few bytes.
            – Doug Stevenson
            Nov 20 at 0:31
















          I was just wondering if there are any downsides to have multiple instances of a database instance
          – Saccarab
          Nov 20 at 0:24




          I was just wondering if there are any downsides to have multiple instances of a database instance
          – Saccarab
          Nov 20 at 0:24












          My answer is saying that there are not actually multiple instances. There is one instance, and you're holding a reference to it in multiple places. Each reference takes a few bytes.
          – Doug Stevenson
          Nov 20 at 0:31




          My answer is saying that there are not actually multiple instances. There is one instance, and you're holding a reference to it in multiple places. Each reference takes a few bytes.
          – Doug Stevenson
          Nov 20 at 0:31


















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