Update dynamodb items programatically
Today, I wanted to update all dynamodb items and couldn't find a handy example in AWS documentation. Below is a handy script that I created to update all the dynamodb table rows with current time stamp using python from __future__ import print_function # Python 2/3 compatibility import boto3 import json import decimal from boto3.dynamodb.conditions import Key, Attr import datetime, time row = 0 table_name = 'table' dynamodb = boto3.resource('dynamodb') table = dynamodb.Table(table_name) # Helper class to convert a DynamoDB item to JSON. class DecimalEncoder(json.JSONEncoder): def default(self, o): if isinstance(o, decimal.Decimal): if o % 1 > 0: return float(o) else: return int(o) return super(DecimalEncoder, self).default(o) def updateItem(item): global row response = table.update_item( Key=item, UpdateExpression='SET #s = :updated', Expre