Create Provisioned Capacity v/s Consumed Capacity dashboard in AWS Cloudwatch

dynamodb_cloudwatch_dashboard.js

var fs = require('fs'),
  readline = require('readline');
var filePath = process.argv[2]
if (!filePath) {
  console.error("node dynamo.js /path/to/file")
  process.exit(1)
}
var rd = readline.createInterface({
  input: fs.createReadStream(filePath),
  console: false
});
var widgets = [];
function renderWidget(x, y, table, metric) {
  return {
    "type": "metric",
    "x": x,
    "y": y,
    "width": 6,
    "height": 6,
    "styles": "undefined",
    "properties": {
      "view": "timeSeries",
      "stacked": false,
      "metrics": [
        [{
          "expression": `m1${metric}ConsumedReadCapacityUnits / 300`, 
          "label": `Consumed ReadCapacityUnits`, 
          "id": `e1${metric}ConsumedReadCapacityUnits`, 
          "stat": "Sum", 
          "period": 60
        }],
        ["AWS/DynamoDB", "ConsumedReadCapacityUnits", "TableName", `${table}`, { "id": `m1${metric}ConsumedReadCapacityUnits`, "stat": "Sum", "period": 300, "visible": false }],
        [".", "ProvisionedReadCapacityUnits", ".", ".", { "id": `m1${metric}ProvisionedReadCapacityUnits`, "stat": "Sum", "period": 300 }]
      ],
      "region": "ap-southeast-1",
      "title": `${table}`
    }
  };
}
rd.on('line', function (table) {
  var metric = table.replace(/\./g, '')
  widgets.push(renderWidget((6 * widgets.length) % 24, 6 * widgets.length, table, metric));
});
rd.on('close', function () {
  console.log(JSON.stringify({ widgets: widgets }));
});