def cfnresponse_send()

in source/lambda/iot-dr-launch-solution/lambda_function.py [0:0]

• 32 lines of code
• 4 McCabe index (conditional complexity)

def cfnresponse_send(event, context, responseStatus, responseData, physicalResourceId=None, noEcho=False):
    logger.info("event: {}".format(event))
    logger.info("context: {}".format(context))

    responseUrl = event['ResponseURL']

    responseBody = {}
    responseBody['Status'] = responseStatus
    responseBody['Reason'] = 'See the details in CloudWatch Log Stream: {}'.format(context.log_stream_name)
    if 'Error' in responseData:
        responseBody['Reason'] = responseData['Error']
    responseBody['PhysicalResourceId'] = physicalResourceId or context.log_stream_name
    responseBody['StackId'] = event['StackId']
    responseBody['RequestId'] = event['RequestId']
    responseBody['LogicalResourceId'] = event['LogicalResourceId']
    responseBody['NoEcho'] = noEcho
    responseBody['Data'] = responseData

    json_responseBody = json.dumps(responseBody)

    logger.info("Response body: {}\n".format(json_responseBody))

    headers = {
        'content-type' : '',
        'content-length' : str(len(json_responseBody))
    }

    logger.info("responseUrl: {}".format(responseUrl))
    try:
        req = urllib.request.Request(url=responseUrl,
                                     data=json_responseBody.encode(),
                                     headers=headers,
                                     method='PUT')
        with urllib.request.urlopen(req) as f:
            pass
        logger.info("urllib request: req: {} status: {} reason: {}".format(req, f.status, f.reason))

    except Exception as e:
        logger.error("urllib request: {}".format(e))