def get_icon(
self,
asset: Asset, given_size: Literal['thumb', 'small', 'large'],
) -> Optional[bytes]:
"""Returns the byte data of the requested icon
If the icon can't be found it returns None.
If the icon is found cached locally it's returned directly.
If not, all icons of the asset are queried from coingecko and cached
locally before the requested data are returned.
"""
if not asset.has_coingecko():
return None
needed_path = self.iconfile_path(asset, given_size)
if needed_path.is_file():
with open(needed_path, 'rb') as f:
image_data = f.read()
return image_data
# else query coingecko for the icons and cache all of them
if self._query_coingecko_for_icon(asset) is False:
return None
if not needed_path.is_file():
return None
with open(needed_path, 'rb') as f:
image_data = f.read()
return image_data
def get_icon(
self,
asset: Asset,
) -> Optional[bytes]:
"""Returns the byte data of the requested icon
If the icon can't be found it returns None.
If the icon is found cached locally it's returned directly.
If not, all icons of the asset are queried from coingecko and cached
locally before the requested data are returned.
"""
# First search custom icons
custom_icon_path = self.custom_iconfile_path(asset)
if custom_icon_path is not None:
with open(custom_icon_path, 'rb') as f:
image_data = f.read()
return image_data
# Then our only chance is coingecko
if not asset.has_coingecko():
return None
needed_path = self.iconfile_path(asset)
if needed_path.is_file():
with open(needed_path, 'rb') as f:
image_data = f.read()
return image_data
# else query coingecko for the icons and cache all of them
if self._query_coingecko_for_icon(asset) is False:
return None
if not needed_path.is_file():
return None
with open(needed_path, 'rb') as f:
image_data = f.read()
return image_data