The order book endpoint provides an order book’s bids and asks and can be used in streaming mode. When filtering for a specific order book, you must use use all six of these arguments: base_asset_type, base_asset_issuer, base_asset_code, counter_asset_type, counter_asset_issuer, and counter_asset_code. If the base or counter asset is XLM, you only need to indicate the asset type as native and do not need to designate the code or the issuer.
The type for the selling asset. Either native, credit_alphanum4, or credit_alphanum12.
Success