dynamodb-doc-test.js

var Aws = require('aws-sdk');
var DynamoClient = require('dynamodb-doc').DynamoDB;

// This script uses the Shared Credentials File. See reference below for more:
// http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/node-configuring.html

Aws.config.update({ region: 'us-east-1' });

var internals = {};

internals.dynamoClient = new DynamoClient();

internals.writeToDynamo = function () {

  var params = {
    TableName: 'test',
  };

  params.Item = {
    ts: Number(Date.now()),
    name: 'test',
  };

  internals.dynamoClient.putItem(params, function (err, data) {

    if (err) {
      console.error(err);
      console.error(err.stack);
    }
    else {
      console.log(data);
    }
  });
};

internals.dynamoClient.scan({ TableName: 'test' }, function (err, result) {

  if (err) {
    throw err;
  }

  console.log(result);

  setInterval(internals.writeToDynamo, 2000);
});