def get_instance_by_id()

in functions/source/UpdateDnsRecord/handler.py [0:0]

• 7 lines of code
• 3 McCabe index (conditional complexity)

def get_instance_by_id(instance_id):
  response = ec2.describe_instances(
    InstanceIds=[ instance_id ]
  )
  reservations = response['Reservations']
  instances = [ instance for r in reservations for instance in r['Instances'] ]
  return next(iter(instances))