readme.md

This pulls a BTC spot rate from GDAX.

#Usage

smashing install 0c55127fa4b3b4627d95f47cee73cfb7

Copy this into your dashboard

    <li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
      <div data-id="btcprice" data-view="Btcprice" data-btcprice="" data-suffix="€"></div>
    </li>

btcprice.coffee

class Dashing.Btcprice extends Dashing.Widget
  @accessor 'value', Dashing.AnimatedValue
  @accessor 'btcprice', ->
    if @get('value')
      price = parseFloat(@get('value'))

btcprice.html

<img src="http://logok.org/wp-content/uploads/2016/10/Bitcoin-Logo-640x480.png" class="btc_logo" alt="" style="">
<h3 data-bind="btcprice | append suffix" class="price value"></h3>
<p class="updated-at" data-bind="updatedAtMessage"></p>

btcprice.scss

// ----------------------------------------------------------------------------
// Sass declarations
// ----------------------------------------------------------------------------
$background-color:  #3498db;

$title-color:       rgba(255, 255, 255, 0.7);
$moreinfo-color:    rgba(255, 255, 255, 0.7);

// ----------------------------------------------------------------------------
// Widget-text styles
// ----------------------------------------------------------------------------
.widget-btcprice {

  background-color: $background-color;

  .title {
    color: $title-color;
  }

  .btc_logo {
    position: relative; /* Declared position allows for location changes */
    top: -20px; /* Moves the image 2px closer to the top of the page */
  }

  .more-info {
    color: $moreinfo-color;
  }

  .updated-at {
    color: rgba(255, 255, 255, 0.7);
  }
  .price {
    font-size: 3em;
    position: relative; /* Declared position allows for location changes */
    bottom: 38px; /* Moves the image 2px closer to the top of the page */
  }
}

gdax-btc.rb

require 'net/http'
require 'json'
require 'uri'

SCHEDULER.every '1m', allow_overlapping: false do
  uri = URI.parse('https://api.coinbase.com/v2/prices/BTC-EUR/spot')
  http = Net::HTTP.new(uri.host, uri.port)
  http.use_ssl = true
  request = Net::HTTP::Get.new(uri.request_uri)
  response = http.request(request)
  json_response = JSON.parse(response.body)
  btc_price = json_response['data']['amount']
  btc_price = '%.2f' % btc_price.delete(',').to_f
  send_event('btcprice', { value: btc_price.to_f} )
end