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from opendc.models.topology import Topology
from opendc.util import exceptions
from opendc.util.rest import Response
def GET(request):
"""Get this Topology."""
# Make sure required parameters are there
try:
request.check_required_parameters(path={'topologyId': 'int'})
except exceptions.ParameterError as e:
return Response(400, str(e))
# Instantiate a Topology from the database
topology = Topology.from_id(request.params_path['topologyId'])
# Make sure this Topology exists
validation_error = topology.validate()
if validation_error is not None:
return validation_error
# Make sure this user is authorized to view this Topology
access_error = topology.validate_user_access(request.google_id, False)
if access_error is not None:
return access_error
# Return this Topology
return Response(200, 'Successfully retrieved topology.', topology.obj)
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