from typing import Union
from ..asset import Asset
from ..call_builder.base_call_builder import BaseCallBuilder
from ..client.base_async_client import BaseAsyncClient
from ..client.base_sync_client import BaseSyncClient
[docs]class OrderbookCallBuilder(BaseCallBuilder):
""" Creates a new :class:`OrderbookCallBuilder` pointed to server defined by horizon_url.
Do not create this object directly, use :func:`stellar_sdk.server.Server.orderbook`.
See `Orderbook Details <https://www.stellar.org/developers/horizon/reference/endpoints/orderbook-details.html>`_
:param horizon_url: Horizon server URL.
:param client: The client instance used to send request.
:param selling: Asset being sold
:param buying: Asset being bought
"""
def __init__(
self,
horizon_url: str,
client: Union[BaseAsyncClient, BaseSyncClient],
selling: Asset,
buying: Asset,
) -> None:
super().__init__(horizon_url, client)
self.endpoint: str = "order_book"
params = {
"selling_asset_type": selling.type,
"selling_asset_code": None if selling.is_native() else selling.code,
"selling_asset_issuer": selling.issuer,
"buying_asset_type": buying.type,
"buying_asset_code": None if buying.is_native() else buying.code,
"buying_asset_issuer": buying.issuer,
}
self._add_query_params(params)