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dynamodb-ruby-example-update-users-table.rb

Updates the items in a DynamoDB table with a new attribute.

# Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. # # This file is licensed under the Apache License, Version 2.0 (the "License"). # You may not use this file except in compliance with the License. A copy of the # License is located at # # http://aws.amazon.com/apache2.0/ # # This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS # OF ANY KIND, either express or implied. See the License for the specific # language governing permissions and limitations under the License. require 'aws-sdk-dynamodb' # v2: require 'aws-sdk' dynamoDB = Aws::DynamoDB::Resource.new(region: 'us-west-2') table = dynamoDB.table('Users') # Get the IDs of all of the users resp = table.scan({ select: "ALL_ATTRIBUTES" }) resp.items.each do |item| id = item['ID'] request = { key: { 'ID' => id }, update_expression: 'set airmiles=:pVal', expression_attribute_values: { ':pVal' => '10000' } } # Update the item in the table: table.update_item(request) end

Sample Details

Service: dynamodb

Last tested: 2018-03-16

Author: Doug-AWS

Type: full-example

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