ruby Sinatra演示应用程序 - 比特币价格
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require "sinatra"
require 'mechanize'
require 'json'
require 'hashie'
require 'bigdecimal'
require "sqlite3"
require "active_record"
ActiveRecord::Base.establish_connection(
adapter: 'sqlite3',
database: 'database.db')
API_URL = 'http://www.cryptocoincharts.info/v2/api'
ActiveRecord::Schema.define do
unless ActiveRecord::Base.connection.tables.include? 'pricings'
create_table :pricings do |t|
t.column :coin, :string
t.column :price, :decimal
t.column :price_before_24h, :decimal
t.column :volume_first, :decimal
t.column :volume_second, :decimal
t.column :volume_btc, :decimal
t.column :best_market, :string
end
end
end
class Pricings < ActiveRecord::Base
end
get "/" do
response = JSON.parse(Mechanize.new.post(
"#{API_URL}/tradingPairs",
{:pairs => "btc_usd,doge_usd,drk_usd" }).body
)
last_responses = []
response.each {|pricing| last_responses << Pricings.create({coin: pricing["id"],
price: pricing["price"],
price_before_24h: pricing["price_before_24h"],
volume_first: pricing["volume_first"],
volume_second: pricing["volume_second"],
volume_btc: pricing["volume_btc"],
best_market: pricing["best_market"]}
)}
html = '<!doctype html>
<head>
<meta http-equiv="refresh" content="60">
</head>
<body>
'
last_responses
.each do |pricing|
html += "<div id=#{pricing.id}>#{pricing.id}. #{pricing.coin} -- #{pricing.price}</div>"
end
html += "</body>"
html
end
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