eventhough https://github.com/aws/aws-sdk-js/blob/master/lib/dynamodb/document_client.js supports createSet, https://github.com/aaronshaf/dynamodb-admin/blob/master/lib/backend.js does not make use of createSet. There is no option available to control whether the created item's attributes will be Lists or Sets. backend.js simply calls putItem with params
{
TableName,
Item: req.body
}
It would be nice if backend.js checks for "special" param inside req.body and uses that to understand that certain attributes should be converted from Lists to Sets before invokng putItem. Anyother mechanism to control the choice of attributes will also be nice.