Example Python Lambda Warmer

getWidgets.py

def getWidgets (event, context): 
 
    try:
        if event['warmer'] == 1:
            return 'warmed'
    except KeyError:
        pass
 
    dynamodb = boto3.resource('dynamodb')
    table = dynamodb.Table('Widgets')
    response = table.get_item(Key={'Id': int(event['queryStringParameters']['Id'])})
    
    widgets = response['Item']['widgets']
 
    response = {
        'statusCode': 200,
        'headers': {'Access-Control-Allow-Origin': '*'},
        'body': json.dumps(widgets)
    }
 
    return response