AWS.DynamoDB.DocumentClient is not providing data on put

Question

I am using the AWS.DynamoDB.DocumentClient, with Dynamodb local (port 8080). When I perform a put, the data variable in the callback is an empty object. Have I missed something?

import * as AWS from "aws-sdk";


AWS.config.update({
  region: "us-west-2",
  endpoint: "http://localhost:8080"
});


const docClient: any = new AWS.DynamoDB.DocumentClient();


const item = {
      someField:    "456",
      other:         "123"
};

const params = {
  TableName: "TableName",
  Item: item
};

docClient.put(params, function(err, data) {
  if (err) console.log(err);
  else console.log(data); // this produces: {}
});

There is no error, and the item is being inserted\updated - however the data variable is an empty object. Shouldn't this contain values?

Thanks

Answer 1

You aren't asking for any values to come back, so why do you expect there to be any values coming back? You'll need to set the appropriate parameters ReturnConsumedCapacity and/or ReturnItemCollectionMetrics and/or ReturnValues if you are wanting any of that to come back in the response.