{
  "mappings": {
    "properties": {
      "month": {
        "type": "date",
        "format": "yyyy-MM-dd"
      },
      "unique_books": {
        "type": "integer"
      },
      "google_analytics": {
        "properties": {
          "unique_views": {
            "type": "integer"
          }
        }
      },
      "crossref_events": {
        "properties": {
          "count": {
            "type": "integer"
          }
        }
      },
      "google_books_traffic": {
        "properties": {
          "BV_with_Buy_Clicks": {
            "type": "integer"
          },
          "BV_with_Pages_Viewed": {
            "type": "integer"
          },
          "Book_Visits_BV_": {
            "type": "integer"
          },
          "Buy_Link_CTR": {
            "type": "float"
          },
          "Non_Unique_Buy_Clicks": {
            "type": "integer"
          },
          "Pages_Viewed": {
            "type": "integer"
          }
        }
      },
      "google_books_sales": {
        "properties": {
          "qty": {
            "type": "integer"
          }
        }
      },
      "jstor": {
        "properties": {
          "Total_Item_Requests": {
            "type": "integer"
          }
        }
      },
      "oapen_irus_uk": {
        "properties": {
          "title_requests": {
            "type": "integer"
          },
          "total_item_investigations": {
            "type": "integer"
          },
          "total_item_requests": {
            "type": "integer"
          },
          "unique_item_investigations": {
            "type": "integer"
          },
          "unique_item_requests": {
            "type": "integer"
          }
        }
      }
    }
  }
}