config.json

{
  "user": {
    "file": {
      "name": "users.dat",
      "delimiter": "::"
    },
    "fields": ["id", "gender", "age", "occupation"]
  },
  "movie": {
    "file": {
      "name": "movies.dat",
      "delimiter": "::"
    },
    "fields": ["id", "title", "genres"]
  }
}