make document id optional from get_aggregate_price (Version: 2.3.0)

[shortthefomo]

Summary

make the document id when looking up the get_aggregate_price optional

Motivation

My oracle uses websockets and I only publish a price when there is trade. Reason is the WebSocket could have gone dead and if I just keep publishing the last price, I would be pushing a false value. Due to this my pairs are not consistent in the document ID's, for example XRPDOT here could be in document 5 the next time I publish the values (if there was another token that got a value that has not been traded since the last push) could be in document 6 the next time round.

Solution

make the document ID from the get_aggregate_price optional, currently I have to hope that developers understand that they need to look for a published value from my oracle by doing this....... its horrible.

const command = {
  'command': 'get_aggregate_price',
  'ledger_index': 'current',
  'base_asset': 'XRP',
  'quote_asset': code,
  'trim': 20,
  'oracles': [
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 0
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 1
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 2
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 3
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 4
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 5
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 6
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 7
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 8
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 9
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 10
    },
    {
      'account': 'roosteri9aGNFRXZrJNYQKVBfxHiE5abg',
      'oracle_document_id': 11
    }
  ]
}

Paths Not Taken

I've not been able to figure a decent solution to this issue, as there also is no option to push a NULL value of sorts. Where by possibly that way I could have the pairs be static in their respective documents.