How to sync CouchDB from multiple PouchDB in Angularjs?

Question

I am working on an angular app. How I can make multiple PouchDB sync to a single CouchDB without any information loss?

Answer 1

if you mean by creating multiple PouchDB instances, then you have to create their respective listener to each PouchDB instance pointing to the remote DB you want ( the CouchDB in question ).

this example for the listener worked for me:

 var sync = PouchDB.sync('mydb', 'http://localhost:5984/mydb', { live: true, retry: true }).on('change', function (info) { // handle change }).on('paused', function (err) { // replication paused (eg replication up to date, user went offline) }).on('active', function () { // replicate resumed (eg new changes replicating, user went back online) }).on('denied', function (err) { // a document failed to replicate (eg due to permissions) }).on('complete', function (info) { // handle complete }).on('error', function (err) { // handle error });

Answer 2

You need to do replication by filter

1. Created filter in CouchDB for every client databases;
2. Start replication from CouchDB to client by filter (look at replication option named filter )
3. Start replication for all documents from client to CouchDB for every client database.

You can find everything you need here (examples 3, 4)