lambda_function.py

import json
import boto3


def lambda_handler(event, context):
    s3 = boto3.client("s3")

    if event:
        print("Event: ", event)
        filename = str(event['Records'][0]['s3']['object']['key'])
        timestamp = str(event['Records'][0]['eventTime'])
        event_name = str(event['Records'][0]['eventName']).split(':')[0][6:]

        filename1 = filename.split('/')
        filename2 = filename1[-1]

        dynamo_db = boto3.resource('dynamodb')
        dynamoTable = dynamo_db.Table('awscapstoneDynamo')

        dynamoTable.put_item(Item={
            'id': filename2,
            'timestamp': timestamp,
            'Event': event_name,
        })

    return "Lambda success"