Log Plots in Nodejs

// Learn about API authentication here: https://plotly.com/nodejs/getting-started
// Find your api_key here: https://plotly.com/settings/api

require('plotly')(username, api_key);

var trace1 = {
  x: [0, 1, 2, 3, 4, 5, 6, 7, 8],
  y: [8, 7, 6, 5, 4, 3, 2, 1, 0],
  type: "scatter"
};
var trace2 = {
  x: [0, 1, 2, 3, 4, 5, 6, 7, 8],
  y: [0, 1, 2, 3, 4, 5, 6, 7, 8],
  type: "scatter"
};
var data = [trace1, trace2];
var layout = {
  xaxis: {
    type: "log",
    autorange: true
  },
  yaxis: {
    type: "log",
    autorange: true
  }
};
var graphOptions = {layout: layout, filename: "plotly-log-axes", fileopt: "overwrite"};
plotly.plot(data, graphOptions, function (err, msg) {
    console.log(msg);
});