firebase.database () multiple instances











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












    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






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 19 at 22:43









      Saccarab

      1029




      1029
























          1 Answer
          1






          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











          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53383715%2ffirebase-database-multiple-instances%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          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


















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53383715%2ffirebase-database-multiple-instances%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Costa Masnaga

          Fotorealismo

          Sidney Franklin