datadog has poor support for regular statsd ~ graphite style metrics that have dimensionality using data in metric keys. You can't wildcard, pattern match, drill down, etc.
so while NSQ has a statsd output, it's a pain to make use of it in datadog, especially with multiple hosts, topics, channels, clients.
so this project sends the metrics to datadog using their tag based scheme.
usage: ./nsqdog <api-key> <app-key> [optional, tags for:datadog]
example:
./nsqdog my-api-key my-app-key footag env:production