AWS SDK for Ruby
Developer Guide

Deleting an Amazon DynamoDB Table Item

The following example deletes item with the year 2015 and title The Big New Movie from the Movies table in the us-west-2 region.

require 'aws-sdk-dynamodb' # v2: require 'aws-sdk' # Create dynamodb client in us-west-2 region dynamodb = 'us-west-2') params = { table_name: 'Movies', key: { year: 2015, title: 'The Big New Movie' } } begin dynamodb.delete_item(params) puts 'Deleted movie' rescue Aws::DynamoDB::Errors::ServiceError => error puts 'Unable to delete movie:' puts error.message end

See the complete example on GitHub.