curl -XPOST http://localhost:8889/v1/replica_sets -d@configurations/replica_sets/basic.json
{
"auth_key": null,
"id": "9662ad30-8742-4738-81a5-ef79d14b8781",
"links": [
{
"href": "/v1/replica_sets/9662ad30-8742-4738-81a5-ef79d14b8781",
"method": "GET",
"rel": "get-replica-set-info"