# POST /batch
# Content-Type: application/json

{
  ops: [
    {method: "post",    url: "/parties", params: {id: "RANDOM_NEW_CLIENT_PARTY_ID"}},
    {method: "post",   url: "/users/new",  params: {party_id: "RANDOM_NEW_CLIENT_PARTY_ID", user_id: "RANDOM_NEW_USER_ID"}},
    {method: "post",   url: "/trips/new",  params: {party_id: "RANDOM_NEW_CLIENT_PARTY_ID", user_id: "RANDOM_NEW_CLIENT_USER_ID" etc}},
  ],
  sequential: true
}