I am new to Xamarin development.
I am building a Xamarin application with RESTful API and using SQL server for online storage and SQLite for the Local storage.
I need to add offline sync feature to my app.
Is there any way to sync remote server and local DB, without using azure mobile service client?
yes you can make use of Sync Adapter this would sync your data in background but this is Platform specific and hence you had to implement it in Native Class Also If you want a Periodic Sync you can also use JobSchedular in Android
You Can Read More Here
Android SyncAdapter Documentation
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I am a flutter developer and now I want to develop an application for desktop. For that, I need to store data. I was using firebase for Android application and now I am shifting to desktop application but firebase doesn't support desktop application.
So, I need a free available backend database service. Is there available any except firebase.
If firebase supports desktop application then how can I add it to my project.
I am building a mobile application targeting iOS, Android and WP with Ionic/Cordova. And using ASP.NET Web API 2 REST APIs backend.
I have the requirement that the mobile application can collect data and synchronise it with the APIs and if the mobile is offline, the sync will happen when it is online. The data size is small and any light DB would do including the localStorage one. The required sync is only needed one way, mobile to APIs. Also, once a record is synchronised, it can be deleted from the mobile.
I was looking at Couchbase mobile, but I found it is a Mobile DB to DB sort of a solution.
Can you recommend a mobile DB to REST/Web API sync solution?
With the native Couchbase Mobile solution for Android/iOS coupled with the REST APIs you are able to get data from Mobile device to your backend. Then delete any documents off your device once you get back a 200 status.
For Windows Phone, you can explore using PouchDB or going with the javascript browser based solution across all platforms since WP is not currently supported.
For the replication or sync to occur when your device is online again, you would require your backend to use Couchbase Server and implement the replication class methods in your native mobile app to have the push feature. Or you can use the REST API with logic detection when you are online again to POST to your backend.
I already deploy my application with eclipse and built in database (generated from AssestDB of the application). I want now to manage the application and deploy it with IBM bluemix PaaS, to manage Mobile Data.
What is the best DB I must use when coding before deploy into Bluemix?
If you want to configure your local test environment in order to minimize migration problems when deploying your application on Bluemix, you should replicate the target environment on your local one, as much as possible.
If you are planning to use the Mobile Data service on Bluemix please consider that it is built on Cloudant NOSQL Database, and it offers a further layer of abstraction that allows you to directly persist objects (if you are familiar with the concepts of class, object etc..).
You could also directly connect from a local application to a DB service instance running on Bluemix.
I'm trying to develop a Windows Phone 8 app. I've created a Web Site in a Windows Azure account which is an MVC 4 project with REST endpoints. I've got an SQL database in Azure to store data from the Azure Web Site. Ocassionaly, I want my application to send PUSH notifications to mobile phones. So I've created a Mobile Service and I've linked the SQL database with the Mobile Service's database in order to have got the same data for the web page and the service.
I though that when I send an HTTP POST to the web site, the script in the database from the Azure Mobile Service would be launched but it looks not to be true. Isn't it? Because of that, I would write in the controller of an HTTP POST endpoint the code to send the data to the Mobile Service endpoint in order to launch the JavaScript code to send the Push Notification.
Is that the right approach for my goal? Is there any way for sending PUSH notifications from an Azure Web Site or it is only allowed from a Mobile Service?
My last question: Do you know any books or blogs about development in Windows Azure? On the Internet there is lots of documentation but principally those are get started tutorials. I've read some books but those are really complex, boring, and not really practical.
As your website MVC4 based and is running on Windows Azure using SQL Database as backend, I will guess that it is based on ASP.NET and i will write my suggestion based on that.
Now about your question "Is there any way for sending PUSH notifications from a Azure Web Site or it is only allowed from a Mobile Service?" I would say, Azure Mobile web services are designed for the same purpose for any service running on Windows Azure to send push notification on multiple of platforms. Application developer can choose to use Mobile Services to expedite their development as well as have multiple application using the one single service for such objective.
However as you mentioned "Is there any way for sending PUSH notifications from a Azure Web Site" this is not depend on "Azure web sites" instead it is depend on what development technology you are using with your Windows Azure Application. For example in ASP.NET your can use SignalR implementation if your application is based on Java, PHP, Python, Node,js etc then you can find some other run time specific real time implementation. If you look around for websockets you will find implementation in almost every popular language or look for comet programming on this regard. Not only that you can use some of the popular 3rd party applications for this purpose as well. i.e. pusher or any other.
While Windows Azure Mobile Services will give you the best results on Windows Azure platform as it is designed to provide such specific functionality for applications running on it.
Recently released: Azure Notification Hub
http://msdn.microsoft.com/en-us/library/windowsazure/jj927170.aspx
I am preparing to make a project "Accessing SANS through application on the cloud"
the objective of the project is deploy a SAN in our company and allow users to upload and use data through application stored at Google App Engine.
Is this achieveable? if yes then how could application deploy on google server access my company's network for data?
Is the project too hard? Plz advice..
The App Engine only allows http(s) communication, your SAN will need to have some sort of web server that allows deploying file using some sort of a PUT or POST handler.
If not the SAN you will have to implement that web web server inside your organization, that web server will need to be open to the internet (but have a security layer to prevent from anyone to access it)