resolve-ip
is a service that takes in an IP address and converts it to a latitude and longitude.
It includes GeoLite data created by MaxMind, available from
http://www.maxmind.com.
Returns a 200, used for load balancing healthchecks
If the IP address is found in the data set, it returns a 200 and a JSON body of the form:
{"lat":37.3394,"lon":-121.895}
If the IP address isn't found, it returns a 404.