deep-linking

I have a website which enables the user to make a search query. The query might take some time to complete (minutes to days), and I would like to enable the user to download an Android app and receive the answer there, by sending an email with a link to the user. I would like this mechanism to work whether the user has the app installed or not; in other words: If the user has the app it should be opened with deep link that contains an identifier argument. If the user does not have it it should open the play store on the app's page (e.g. https://play.google.com/store/apps/details?id=com.bar.foo

Github has a really nice source browser. Navigating between different paths in the repo generates ajax calls to load the content (as you can clearly see in the firebug log). The ajax call returns the html of the new list of files to be displayed. In addition to changing the view list of files, the url changes as well. However it does not use fragments like most ajax deep-linked sites (use of #). At github the whole url changes. For example at django repo at https://github.com/django/django going to django folder will generate ajax request to https://github.com/django/django/tree/master/django

Given the recent " encouragement " by Facebook to migrate to a separate messenger app, and as a followup to the {very informative!} answer to the question on URL/URI schemes supported by the Facebook app , I've been wondering whether information regarding the Facebook messenger app custom protocol of fb-messenger:// is available. The functionality I was looking for was an ability to click a button that would open a FB-messenger chat windows with the user whose numeric Facebook ID is known. This also needed to work if the Facebook app ( katana ) is not installed on the device (i.e. only the