examples-nodejs-energy-chart's Introduction

examples-nodejs-energy-chart

node.js application that fetches energy data and plot them on a color bar chart in the terminal.

It gets the data from Pulse Energy Platform

Usage: node chart.js <space_id>

Example

Output after running the app as follows:

node chart.js 388

Dependencies

This app depends on these node.js modules. Use npm to install them (npm install module_name):

async - asynchronous control flow (waterfall)
cli-chart - draw ansi color bar charts in a terminal
cli-spinner - display spinner when interacting with server
dateformat - show date in a readable format
request - simplied http request

Below are the config params to the PEChart class:

// from command line
var space_id = process.argv.splice(2)[0];

// config params
var url = 'https://api.pulseenergy.com/pulse';
var params = {
    // for detail info, see http://developer.pulseenergy.com/
         key: '9C3B13239D75E73FDE883C934FF647A1',
    resource: 'Total',
    interval: 'Week',
    quantity: 'Energy'
};
var graph = {
     interval: params.interval,
    // these ones below are optional parameters
       normal: { color: 'blue' },
    threshold: { percent: 2, color: 'yellow' }, // ie within 2% of max
          min: { color: 'green' },
          max: { color: 'red' }
};
var config = {
       params: params,
     data_url: url + '/1/spaces/'+space_id,
   spaces_url: url + '/1/spaces.json?key='+params.key,
        graph: graph
};

var pechart = new PEChart(config);
pechart.fetchDraw(space_id);

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