Drinks On Me
What is it
Drinks On Me is a mobile app that allows Foursquare users to pay their Foursquare friends or other people checked in to your location. Payments are managed through the Venmo Your Friends iOS Library. The code to Drinks On Me is open-sourced and serves as an example of how to combine Foursquare and Venmo on a mobile app.
How to use DrinksOnMe
First, download the DrinksOnMe project. Open the project in Xcode and you'll see that it doesn't compile. You need to change the file named AppConstants.h.sample. Rename it to AppConstants.h and include your Foursquare app credentials and your Venmo app credentials.
Input the credentials in AppConstants.h. Build DrinksOnMe and run it.
As a reference, you can check out https://github.com/venmo/venmo-your-friends-ios to see how to download and use the Venmo SDK.