How to read DynamoDB table using aws lambda function in python?

Question

I have a use-case where I have to read DynamoDB table data and convert this into csv file and write into a s3 bucket using AWS lambda function. DynamoDB tables data is bit low around 2-3 MB so I want to read entire table every week. I am new to AWS and services and want to how to read table without triggers and how to schedule lambda function so it can run every week?

Please share the steps to accomplish this task.

Any help would be appreciated.

Please share the steps to accomplish this task.

Any help would be appreciated.

Answer

To schedule a Lambda function to run on a regular basis, use [CloudWatch Events](https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html).

Scanning a whole DynamoDB table may not be the most efficient way of doing things but here's some code anyway:
```
import boto3

ddbclient = boto3.client('dynamodb')

def lambda_handler(event, context):
    paginator = ddbclient.get_paginator('scan')
    iterator = paginator.paginate(TableName='YourTableNameHere')

for page in iterator:
        for item in page['Items']:
            
```

How to read DynamoDB table using aws lambda function in python?

Relevant content