this API route does the following:

basic reachability check
db connectivity check
auth check

usage: curl -i http://localhost:8080/api/health/ping

expected response:
{
  "ping": {"status":"ok"},
  "db": {"status":"ok"},
  "auth": {"status":"ok"},
}

router: "ok" if router reachable.
db: "ok" for query success or "error" message.
auth: "ok" means at least one active API key exists;

use this service as an example for how to connect to db, add endpoints, and use this framework