This a application demo showing what can be done with gps maps, tourism information and event calendar.
It is a usable Tourist information for Lisbon City with Points of Interest and Daily Events Calendar
Git it a try.
FrontEnd is Javascript / Cordova
BackEnd is Amazon Cloud AWS Dynamo / Lambda / Node.js
Points of Interest Content is from google Maps and Wikipedia, translated with Google Translate API
Events come from events website, fetch to Amazon AWS DynamoDB with AWS Lambda funtion and updated with GPS coords from Google APIs
Many other use cases can be built