An example of how to generate Google Analytics reports from node.js (with custom dimensions).

google-analytics-node.js

var GA = require('googleanalytics'),
    Table = require('cli-table'),
    util = require('util');

// API client.
// You may need to enable API access to analytics for your account
// here: https://code.google.com/apis/console
var ga = new GA.GA({
  "user": "[email protected]",
  "password": "mysupersecretpassword"
});

// What we call the custom dimension.
var cvdimensions = {
  'ga:dimension1': 'installation',
  'ga:dimension2': 'creative',
  'ga:dimension3': 'variant',
  'ga:dimension4': 'merchant',
  'ga:dimension5': 'product'
};

// Which metrics & dimensions we want.
var metrics = [ 'ga:pageviews' ];
var dimensions = [
  'ga:pagePath',
  'ga:dimension1',
  'ga:dimension2',
  'ga:dimension3',
  'ga:dimension4',
  'ga:dimension5',
];

// Options (make sure you set the 'view id' and start & end dates)
// You can find the id you need in the analytics web console under:
// 'Admin' (top right) -> 'VIEW (PROFILE)' (far right column) ->
// 'View Settings' (first option) -> 'View ID'.
// NOTE: IT IS NOT THE 'UA-xxx' ONE!
var options = {
  'ids': 'ga:79670027',
  'start-date': '2013-01-01',
  'end-date': '2014-01-01',
  'dimensions': dimensions.join(','),
  'metrics': metrics.join(','),
  'sort': '-ga:pagePath'
};

ga.login(function(err, token) {

  ga.get(options, function(err, entries) {
    
    if( err ) throw new Error(err);

    // headings
    var headers = [""].concat( metrics );
    dimensions.forEach( function( dim ){
      headers.push( ( dim in cvdimensions ) ? cvdimensions[dim] : dim );
    });

    var table = new Table({ head: headers });

    entries.map( function( entry ){

      // console.log( entry );
      var row = {}, cols = [];

      // metrics
      for( var metric in entry.metrics[0] ){
        cols.push( entry.metrics[0][metric] );
      }

      // dimensions
      for( var dimension in entry.dimensions[0] ){
        cols.push( entry.dimensions[0][dimension] );
      }

      row[entry.dimensions[0]['ga:pagePath']] = cols;
      table.push( row );
    });

    console.log( table.toString() );
  });

});