maxmind-api-proxy

The "maxmind-api-proxy" is a small Golang program that acts as a "proxy" between a "client" and the Maxmind GeoIP API (https://www.maxmind.com/en/solutions/ip-geolocation-databases-api-services).

As requests are made to the "proxy", results are stored (cached) to a Redis database. The database will automatically "expire" entire "cached" entires after a specified amount of time (default: 24 hours).

The idea is to query Maxmind less, thus saving you money on queries.

Configuring the "maxmind-api-proxy"

In the "etc" directory is the "config.json" file. This holds the settings that are used by the proxy.

{
  "api_key": "YOUR_PROXY_SERVICE_API_KEY",

  "http_listen": ":8443",
  "http_cert": "/etc/letsencrypt/live/YOURSITE/fullchain.pem",
  "http_key": "/etc/letsencrypt/live/YOURSITE/privkey.pem",
  "http_mode": "release",

  "maxmind_username":"MAXMIND_USERNAME",
  "maxmind_password":"MAXMIND_PASSWORD",
  "maxmind_url":"https://geoip.maxmind.com/geoip/v2.1/city/",

  "redis_host": "127.0.0.1",
  "redis_port": 6379,
  "redis_password":"YOUR_REDIS_PASSWORD",
  "redis_database": "0",
  "redis_cache_time": 24

}

Building "maxmind-api-proxy" and executing the proxy

$ go mod init maxmind-api-proxy
$ go mod tidy
$ go build
$ ./maxmind-api-proxy etc/config.json   # Running the proxy

Example query to the proxy

curl -H 'API_KEY: YOUR_PROXY_SERVICE_API_KEY' https://your.site:8444/8.8.8.8

The proxy will return either a cached or non-cached version of JSON from Maxmind.