The Order Book Object

When Horizon returns information about an order book, it uses the following format:

ATTRIBUTEDATA TYPE
DESCRIPTION
bidsobject
The prices and amounts for the buyside of the asset pair.
Show child attributes
- price_robject
  A precise representation of the bid price of the asset pair.
  Show child attributes
  nnumber
  The numerator.
  dnumber
  The denominator.
- pricestring
  The bid price of the base asset denominated in the counter asset. A number representing the decimal form of price_r.
- amountstring
  The amount of counter asset that the account making this offer is willing to buy at this price.
asksobject
The prices and amounts for the sellside of the asset pair.
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- price_robject
  A precise representation of the ask price of the asset pair.
  Show child attributes
  nnumber
  The numerator.
  dnumber
  The denominator.
- pricestring
  The ask price of the base asset denominated in the counter asset. A number representing the decimal form of price_r.
- amountstring
  The amount of counter asset that the account making this offer is willing to sell at this price.
baseobject
Details about the base asset.
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- asset_typestring
  The type for the base asset. Either native, credit_alphanum4, or credit_alphanum12.
- asset_codestring
  The code for the base asset.
- asset_issuerstring
  The Stellar address of the base asset’s issuer.
counterobject
Details about the counter asset.
Show child attributes
- asset_typestring
  The type for the counter asset. Either native, credit_alphanum4, or credit_alphanum12.
- asset_codestring
  The code for the counter asset.
- asset_issuerstring
  The Stellar address of the counter asset’s issuer.

Example
{
  "bids": [
    {
      "price_r": {
        "n": 6014600,
        "d": 102275119
      },
      "price": "0.0588080",
      "amount": "0.1722469"
    },
    {
      "price_r": {
        "n": 1250000,
        "d": 21831117
      },
      "price": "0.0572577",
      "amount": "0.2991796"
    }
  ],
  "asks": [
    {
      "price_r": {
        "n": 118163,
        "d": 2000000
      },
      "price": "0.0590815",
      "amount": "8057.2710223"
    },
    {
      "price_r": {
        "n": 60627,
        "d": 1000000
      },
      "price": "0.0606270",
      "amount": "10000.0000000"
    }
  ],
  "base": {
    "asset_type": "native"
  },
  "counter": {
    "asset_type": "credit_alphanum4",
    "asset_code": "USD",
    "asset_issuer": "GDUKMGUGDZQK6YHYA5Z6AY2G4XDSZPSZ3SW5UN3ARVMO6QSRDWP5YLEX"
  }
}