Tracking Santa with SMS and Java

This summary explains how a Spring Boot application is used to track Santa's location via SMS, utilizing Nexmo for sending and receiving messages, and various services such as GeoNames for postal code lookup and DistanceCalculationService for calculating the distance between the user's location and Santa's current location. The application uses a keyword-based routing system with multiple stages to determine which questions a user is responding to, and it handles various scenarios such as country code lookup, postal code lookup, and distance calculation. The application also provides contextual information to assist users and allows them to provide their postal code to get more detailed information about Santa's location.