iCloud Calendar sync in application - calendar

I am creating application as like Sunrise, Calendar by Riddle, Tiny Calendar, Calendar 5.
Requirement is to add multiple iCloud Calendar in application as like above applications doing.
I want to sync Apple Calendar (iCal) as like this applications. I got success with Google Calendar Sync, but not finding way to sync iCal. Don't know how this all applications are accomplishing it. Whether they are doing from App side or from server side?
I have go through CalDAV, but not finding way.
Any one have idea from which API I can implement iCloud Calendar sync in my application?
If any one have ever implemented multiple iCloud Calendar Sync then please help me.

iCloud currently uses CalDAV to community with the Calendar apps on iOS and macOS. You can easily look at the CalDAV requests/responses exchanged between those and iCloud using a tool like Charles.
This is a pretty good introduction on how to build a CalDAV client:
Building a CalDAV client.
You may want to come back with more specific questions if you run into issues. "I have go through CalDAV, but not finding way." is a little, well, very vague ;-)

Related

is Google Calendar suitable as backend for a large application

I'm researching an excellent calendar service to host the events to a specific platform; the idea is to use a quick calendar service to host and manage our events.
Since our platform has a frontend, the customer doesn't have direct access to this calendar, instead, he'll use a frontend logic to create and manage events and our backend will link that business logic with a calendar service like Google Calendar service.
Our business logic will separate and organize many customers and different calendars (multi-tenant), allowing multiple customers to have a good experience with scheduling events and each one accessing his own list of events.
Is Google Calendar suitable as a calendar service backend for a large application like that?
After some research, I found that it is possible to use Google Calendar as a backend for my app. You can leverage that using Google Server-To-Server API or "Two-legged OAuth".
A Google API must be created in Google API panel
You must take care because Google API has a quota to limit your requests
If you want more allowance, you can request by contact Google office
More details in:
https://developers.google.com/api-client-library/php/auth/service-accounts
I'll go with my service from scratch. Also, I found a satisfying service.
- http://calendarserver.org/ (worth a try)

How can I make free/busy information available across Calendar server, Google apps and Exchange?

As some background, my company is currently using an Apple Calendar server, some Exchange servers and a Google Apps subscription to provide calendaring for different parts of the organization. I've been tasked with providing free/busy access across these services while we try to take at least one of the services out of the equation.
I've attempted to use Google Interop, but it does not work with Exchange 2013 due to Microsoft eliminating Exchange Public Folder Databases in that release. I've also set up an IIS WebDAV server to attempt to share calendars, but this has shortcomings as well because only one person is able to moderate the calendar, and f/b data can't be queried in the Apple Calendar app - you have to subscribe to a separate f/b calendar.
Are there any suggestions as to how I should proceed?
If you can write your own connectors for each service (ie using propietary API's) you could then expose that information through a custom caldav service.
For example you could use http://milton.io (java) or http://sabre.io/ (php), both allow pulling data from arbitrary data sources.

Notifications and Syncing Exchange/Office-365 Calendars

I'm working on an application (server-side) that requires syncing calendar events.
The application is intended to work with both Google Calendar and Microsoft Exchange calendar services. I already have the Google calendar syncing in place thanks to their use of web-hook notifications when a resource changes, but I'm having trouble figuring out what method to use with Microsoft's service.
All I've been able to find when searching for a Microsoft solution has been related to EWS. Does the Office 365 calendar API provide any sort of notification mechanism? Am I missing some link/relation between O365 and EWS?
Thanks!
We are working on offering webhooks and sync for Office 365 Mail, Calendar and Contact REST APIs, especially for Calendar. Stay tuned.
[UPDATE] You can use Exchange Web Services in the interim. Take a look at SyncFolderItems, SyncFolderHierarchy, and Notifications. In the Notifications doc, you need to look at the info for Push Notifications.
If you are using O365, you will likely want Streaming Notifications as opposed to Push Notifications.

Is it possible to integrate Bugzilla's calendar with Thunderbird when using mandatory (not visible anonymously) products

Is it possible to integrate Bugzilla's callendar with Thunderbird Lightning addon when using mandatory (not visible anonymously) products? So the user experience is the same as with Google calendar.
The problem is that Lightning would need to know the password of Bugzilla's server (which I am happy to provide).
BTW, searching with Google queries like "bugzilla lightning integration" is really difficult, since one get a lot of irrelevant Bugzilla bug reports of stray products...

How to track if browser is Silverlight enabled

I'm trying to get some stats on how many of the visitors to our website have Silverlight enabled browsers.
We currently use Google Analytics for the rest of our stats so ideally we'd like to just add 'Silverlight enabled' tracking in with the rest of our Google Analytics stats. But if it has to get written out to a DB etc then so be it.
Nikhil has some javascript to Silverlight tracking to Google Analytics. I have tried this code but Google Analytics doesn't pick it up.
Does anyone have any other ideas/techniques?
In case you missed it, there's a link to a more detailed article as well in the comments: http://blogs.msdn.com/jeffwilcox/archive/2007/10/01/using-google-analytics-with-rich-managed-web-applications-in-silverlight.aspx
Edit: As David pointed out, this article covers the reverse scenario more (how to write your silverlight app so that it plays well with Analytics).
I think you answered it yourself. The page you are linking to does just that: detect which version of Silverlight the user has (not if s/he installs it). From the page:
After a little poking around, I found that Google Analytics has support for reporting a user-defined field.
...
Basically this detects the presence of Silverlight, and if its available, it records the version as the value of the user-defined field. Now your analytics reports will have one of three values: "(not set)", "Silverlight/1.0" or "Silverlight/2.0".
#Vaibhav
The Using Google Analytics with rich (managed) web applications in Silverlight article is very interesing but is more focused on how to get your Silverlight app to send messages to Google Analytics.
#Cd-MaN
Yeah, I thought that too but I have tried running my page with Nikhil's javascript and Google Analytics didn't pick it up. But I could have screwed something up somewhere.
I'm just interested to know if anyone else has managed to do this (track Silverlight-ness) successfully.
I've written a lightweight Silverlight library that helps make it easy to integrate Google Analytics in your silverlight app. You can grab download the code or binaries here.
I think the code posted on Nikhil's blog is out of date if you are using ga.js and not urchin.js.
The use of the global function __utmSetVar() is replaced by the tracker method _setCustomVar()
http://code.google.com/apis/analytics/docs/gaJS/gaJSApiBasicConfiguration.html#_gat.GA_Tracker_._setCustomVar

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