def on_get(self, req, resp, address):
"""
Handles retrieval of an existing Host.
:param req: Request instance that will be passed through.
:type req: falcon.Request
:param resp: Response instance that will be passed through.
:type resp: falcon.Response
:param address: The address of the Host being requested.
:type address: str
"""
# TODO: Verify input
try:
host = Host.retrieve(address)
resp.status = falcon.HTTP_200
req.context["model"] = host
except:
resp.status = falcon.HTTP_404
return
