Web service detecting visitor origin

[aditk8149]

For all the coders out there, here is one question, which is bugging my mind since a while.

Considering that I have an application on Web, Android and iOS, how do I get the visitor origin via a web service.
You can also consider it as a service which is able to provide me the platform with which user is using the application.
Is it really possible?

 

[rodserd]

For all the coders out there, here is one question, which is bugging my mind since a while.

Considering that I have an application on Web, Android and iOS, how do I get the visitor origin via a web service.
You can also consider it as a service which is able to provide me the platform with which user is using the application.
Is it really possible?

This stack overflow post looks over this topic. Stackoverflow is a great resource for questions about programming.