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    Inserting, Updating, and Querying items using the DynamoDB node.js documentclient


    We use the node.js DynamoDB document client from the aws-sdk package, along with the uuid package, to insert, update, and query items in DynamoDB. We also cover related topics like reserved words in queries and how to get around that, KeyConditionExpressions like begins_with, and other extras on the way.