pouchdb | 易学教程

Offline Firebase

阅读更多关于 Offline Firebase

问题 I am implementing an AngularJS web app with Firebase as a backend; it should work offline, too; multi-user sync issues should be very limited, since the app - by design - will only allow new data entries when offline. I understand Firebase has offline capabilities, in the sense that a client can withstand temporary network connection failures: any write operation will be delayed and cached until network comes up again. I ask if any possibility does exist (or does any plan to implement it) to

How to have complete offline functionality in a web app with PostgreSQL database?

阅读更多关于 How to have complete offline functionality in a web app with PostgreSQL database?

I would like to give a web app with a PostgreSQL database 100% offline functionality. In an ideal case the database should be completely replicated in the browser per user, and synchronized when online. So that the same code can be used to talk to both the offline and online database. I know this is possible with PouchDB and CouchDB, but have not found a solution that works with PostgreSQL. Is this at all possible? Short answer: I don't know of anything like this that currently exists. However, in theory, this could be made to work...(long answer:) Write a PostgreSQL backend for levelup (one

Using PouchDB with MongoDB

阅读更多关于 Using PouchDB with MongoDB

I've never used CouchDB. I want to use PouchDB on my client app but I'm not sure if it can be integrated with MongoDB because Pouch was designed to be used with CouchDB. Although my API is written in PHP I'm not using any sort of REST API as in CouchDB to connect to the db. Is there an equivalent of PouchDB that can be used with MongoDB? Or am I going nowhere? PouchDB contributor here. :) This is actually a question we get a lot, and it's understandable, given the popularity of MongoDB. The short answer is: no, there's no way to get a PouchDB that you can just plug into your existing MongoDB

How to resolve conflicts with continuous replication

阅读更多关于 How to resolve conflicts with continuous replication

I'm new to both CouchDB and PouchDB and am using it to create a contact management system that syncs across mobile and desktop devices, and can be used offline. I am seeing that using PouchDB is infinitely easier than having to write a PHP/MySQL backend. I have been using it successfully, and when I make conflicting changes on offline devices, CouchDB uses an algorithm to arbitrarily pick a winner and then correctly pushes it to all the devices. What I would like to do is implement a custom algorithm to merge conflicting records. Here is the algorithm I would like to use: If a record is

Couchdb sync access with userid and password

阅读更多关于 Couchdb sync access with userid and password

问题 I have a couchdb running on a virtual linux machine. This db has cors enabled and setup. I have added an admin user and password to the db. I also have require_valid_user set to true. I am trying to sync a pouchdb in a web page with the couchdb online with the code below. If I just pass the address for the db (1 below), I get a dialog box asking for a user and password. The sync works in this example. If I try to pass the user name and password in the URL (as in 2 below), I get a sync error

How to have complete offline functionality in a web app with PostgreSQL database?

阅读更多关于 How to have complete offline functionality in a web app with PostgreSQL database?

问题 I would like to give a web app with a PostgreSQL database 100% offline functionality. In an ideal case the database should be completely replicated in the browser per user, and synchronized when online. So that the same code can be used to talk to both the offline and online database. I know this is possible with PouchDB and CouchDB, but have not found a solution that works with PostgreSQL. Is this at all possible? 回答1: Short answer: I don't know of anything like this that currently exists.

Using PouchDB with MongoDB

阅读更多关于 Using PouchDB with MongoDB

问题 I've never used CouchDB. I want to use PouchDB on my client app but I'm not sure if it can be integrated with MongoDB because Pouch was designed to be used with CouchDB. Although my API is written in PHP I'm not using any sort of REST API as in CouchDB to connect to the db. Is there an equivalent of PouchDB that can be used with MongoDB? Or am I going nowhere? 回答1: PouchDB contributor here. :) This is actually a question we get a lot, and it's understandable, given the popularity of MongoDB.