def lambda_handler()

in python-app-backend/lambda/image-index/main.py [0:0]

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

def lambda_handler(event, context):
    # Get the object from the event
    bucket = event['Records'][0]['s3']['bucket']['name']
    key = urllib.parse.unquote_plus(event['Records'][0]['s3']['object']['key'])

    try:

        # Calls Amazon Rekognition IndexFaces API to detect faces in S3 object
        # to index faces into specified collection

        response = index_faces(bucket, key)

        # Commit faceId and full name object metadata to DynamoDB

        if response['ResponseMetadata']['HTTPStatusCode'] == 200:
            faceId = response['FaceRecords'][0]['Face']['FaceId']

            ret = s3.head_object(Bucket=bucket, Key=key)
            person_full_name = ret['Metadata']['fullname']

            tracer.put_metadata(key="full_name", value=person_full_name)

            update_index(table_name, faceId, person_full_name)

        # Print response to console.
        print(response)

        return response
    except Exception as e:
        print(e)
        print("Error processing {} from bucket {}. ".format(key, bucket))
        raise e