MaxMind GeoIP library for Nim.
The library uses the official libgeoip C library to achieve good performance. Using in-memory caching, an IP address lookup takes less than 0.2 us on an Intel i5.
sudo apt-get install libgeoip1
nimble install mmgeoip# Country lookup
let g = GeoIP("/usr/share/GeoIP/GeoIP.dat")
echo g.country_code3_by_addr("8.8.8.8")
echo g.country_code_by_addr("8.8.8.8")
echo g.country_name_by_addr("8.8.8.8")
echo g.id_by_addr("8.8.8.8")
g.delete()
# using MEMORY_CACHE
let g = GeoIP("/usr/share/GeoIP/GeoIP.dat", MEMORY_CACHE)
echo g.country_code3_by_addr("8.8.8.8")
g.delete()
# City lookup
let g = GeoIP("/usr/share/GeoIP/GeoLiteCity.dat")
let r = g.record_by_addr("8.8.8.8")
echo r.city
echo r.latitude
echo $r.longitude
echo r.area_code
echo r.country_code
echo r.country_code3
echo r.postal_code
echo r.region
g.delete()
# AS number lookup
let g = GeoIP("/usr/share/GeoIP/GeoIPASNum.dat")
echo g.org_by_addr("8.8.8.8")
g.delete()
# Same for IPv6
let g = GeoIP("/usr/share/GeoIP/GeoIPASNumv6.dat")
echo g.org_by_addr_v6("2a00:1450:400b:c03::8b")
g.delete()