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susthitsoft/copyFirestoreDB.js

Forked from brunobraga95/copyFirestoreDB.js
Created August 1, 2018 18:19
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Revisions

  1. @brunobraga95 brunobraga95 revised this gist Jan 29, 2018. 1 changed file with 3 additions and 3 deletions.
    6 changes: 3 additions & 3 deletions copyFirestoreDB.js
    View file
    Original file line number Diff line number Diff line change
    @@ -1,7 +1,7 @@
    const firebase = require('firebase-admin');

    var serviceAccountSource = require("./meu-projeto-incrivel-origem.json"); // source DB key
    var serviceAccountDestination = require("./meu-projeto-incrivel-destino.json"); // destiny DB key
    var serviceAccountSource = require("./source.json"); // source DB key
    var serviceAccountDestination = require("./destination.json"); // destiny DB key

    const sourceAdmin = firebase.initializeApp({
    credential: firebase.credential.cert(serviceAccountSource)
    @@ -11,7 +11,7 @@ const destinyAdmin = firebase.initializeApp({
    credential: firebase.credential.cert(serviceAccountDestination)
    }, "destination");

    /* this schema is how your DB is organized. You don't have to care about the Documents
    /* this schema is how your DB is organized in a tree structure. You don't have to care about the Documents
    but you do need to inform the name of your collections and any subcollections, in this
    case we have two collections called users and groups, the all have their documents, but
    the collection users has its own subcollections, friends and groups, which again have their
  2. @brunobraga95 brunobraga95 created this gist Jan 29, 2018.
    59 changes: 59 additions & 0 deletions copyFirestoreDB.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,59 @@
    const firebase = require('firebase-admin');

    var serviceAccountSource = require("./meu-projeto-incrivel-origem.json"); // source DB key
    var serviceAccountDestination = require("./meu-projeto-incrivel-destino.json"); // destiny DB key

    const sourceAdmin = firebase.initializeApp({
    credential: firebase.credential.cert(serviceAccountSource)
    });

    const destinyAdmin = firebase.initializeApp({
    credential: firebase.credential.cert(serviceAccountDestination)
    }, "destination");

    /* this schema is how your DB is organized. You don't have to care about the Documents
    but you do need to inform the name of your collections and any subcollections, in this
    case we have two collections called users and groups, the all have their documents, but
    the collection users has its own subcollections, friends and groups, which again have their
    own subcollection, messages.
    */
    const schema = {
    users: {
    friends: {
    messages: {},
    },
    groups: {
    messages: {},
    },
    },
    groups: {},
    };

    var source = sourceAdmin.firestore();
    var destination = destinationAdmin.firestore();

    const copy = (sourceDBrep, destinationDBref, aux) => {
    return Promise.all(Object.keys(aux).map((collection) => {
    return sourceDBrep.collection(collection).get()
    .then((data) => {
    let promises = [];
    data.forEach((doc) => {
    const data = doc.data();
    promises.push(
    destinationDBref.collection(collection).doc(doc.id).set(data).then((data) => {
    return copy(sourceDBrep.collection(collection).doc(doc.id),
    destinationDBref.collection(collection).doc(doc.id),
    aux[collection])
    })
    );
    })
    return Promise.all(promises);
    })
    }));
    };

    copy(source, destination, aux).then(() => {
    console.log('copied');
    });