Calling the API for specific point in time

[cdschwartz]

Are there any plans to make it possible to call the API for a specific asset/market at a specific points in time?

I'm specifically looking into
get_asset, get_settle_orders and get_order_book
http://185.208.208.184:5000/apidocs/#!/asset/api_explorer_get_asset

I saw that making an ES plugin for historical snapshots were discussed here some time ago: bitshares/bitshares-core#205

[Zapata]

It should be possible to get the value of get_asset in the past as we have this kind of entries in ES each time an asset changes:

{
  "_index": "objects-asset",
  "_type": "data",
  "_id": "1.3.110",
  "_version": 99373,
  "_score": null,
  "_source": {
    "id": "1.3.110",
    "symbol": "RUB",
    "precision": 4,
    "issuer": "1.2.0",
    "options": {
      "max_supply": 1000000000000000,
      "market_fee_percent": 0,
      "max_market_fee": 1000000000000000,
      "issuer_permissions": 511,
      "flags": 128,
      "core_exchange_rate": {
        "base": {
          "amount": 63460000,
          "asset_id": "1.3.110"
        },
        "quote": {
          "amount": 178500000,
          "asset_id": "1.3.0"
        }
      },
      "whitelist_authorities": [],
      "blacklist_authorities": [],
      "whitelist_markets": [],
      "blacklist_markets": [],
      "description": "1 Russian ruble",
      "extensions": {}
    },
    "dynamic_asset_data_id": "2.3.110",
    "bitasset_data_id": "2.4.10",
    "object_id": "1.3.110",
    "block_time": "2019-08-03T16:55:21",
    "block_number": 39760504
  },
  "fields": {
    "block_time": [
      "2019-08-03T16:55:21.000Z"
    ]
  },
  "sort": [
    1564851321000
  ]
}

About the order book, currently there is no way to do it, and no plan for it, as it might be very space consuming.

What is you use case?