class Kaesen::Zaif

Zaif Wrapper Class corp.zaif.jp/api-docs/

Public Class Methods

new(options = {}) { |self| ... } click to toggle source
Calls superclass method Kaesen::Market::new
# File lib/kaesen/zaif.rb, line 15
def initialize(options = {})
  super()
  @name        = "Zaif"
  @api_key     = ENV["ZAIF_KEY"]
  @api_secret  = ENV["ZAIF_SECRET"]
  @url_public  = "https://api.zaif.jp/api/1"
  @url_private = "https://api.zaif.jp/tapi"

  options.each do |key, value|
    instance_variable_set("@#{key}", value)
  end
  yield(self) if block_given?
end

Public Instance Methods

balance() click to toggle source

Get account balance. @abstract @return [hash] account_balance_hash

jpy: [hash]
   amount: [BigDecimal] 総日本円
   available: [BigDecimal] 取引可能な日本円
btc [hash]
   amount: [BigDecimal] 総BTC
   available: [BigDecimal] 取引可能なBTC
ltimestamp: [int] ローカルタイムスタンプ
# File lib/kaesen/zaif.rb, line 90
def balance
  have_key?
  address = @url_private
  body = { "method" => "get_info" }
  h = post_ssl(address, body)
  {
    "jpy"        => {
      "amount"    => BigDecimal.new(h["return"]["deposit"]["jpy"].to_s),
      "available" => BigDecimal.new(h["return"]["funds"]["jpy"].to_s),
    },
    "btc"        => {
      "amount"    => BigDecimal.new(h["return"]["deposit"]["btc"].to_s),
      "available" => BigDecimal.new(h["return"]["funds"]["btc"].to_s),
    },
    "ltimestamp" => Time.now.to_i,
  }
end
buy(rate, amount=BigDecimal.new(0)) click to toggle source

Bought the amount of Bitcoin at the rate. 指数注文 買い. Abstract Method. @param [BigDecimal] rate @param [BigDecimal] amount @return [hash] history_order_hash

success: [String] "true" or "false"
id: [String] order id at the market
rate: [BigDecimal] rate should be 5 multiples
amount: [BigDecimal] minimal amount is 0.0001 BTC
order_type: [String] "sell" or "buy"
ltimestamp: [int] ローカルタイムスタンプ
# File lib/kaesen/zaif.rb, line 149
def buy(rate, amount=BigDecimal.new(0))
  have_key?
  address = @url_private
  rate = (rate.to_i / 5) * 5
  body = {
    "method"        => "trade",
    "currency_pair" => "btc_jpy",
    "action"        => "bid",
    "price"         => rate,
    "amount"        => amount.to_f.round(4)
  }
  h = post_ssl(address, body)
  result = h["success"].to_i == 1 ? "true" : "false"
  {
    "success"    => result,
    "id"         => h["return"]["order_id"].to_s,
    "rate"       => BigDecimal.new(rate.to_s),
    "amount"     => BigDecimal.new(amount.to_s),
    "order_type" => "sell",
    "ltimestamp" => Time.now.to_i,
  }
end
cancel(id) click to toggle source

Cancel an open order @abstract @param [int or string] order id @return [hash]

success: [bool] status
# File lib/kaesen/zaif.rb, line 280
def cancel(id)
  have_key?
  address = @url_private
  body = {
    "method"        => "cancel_order",
    "currency_pair" => "btc_jpy",
    "order_id" => id,
  }
  h = post_ssl(address, body)
  {
    "success" => h["success"]==1,
  }
end
cancel_all() click to toggle source

Cancel all open orders @abstract @return [array]

success: [bool] status
# File lib/kaesen/zaif.rb, line 298
def cancel_all
  have_key?
  opens.collect{|h|
    cancel(h["id"])
  }
end
depth() click to toggle source

Get order book. @abstract @return [hash] array of market depth

asks: [Array] 売りオーダー
   price : [BigDecimal]
   size : [BigDecimal]
bids: [Array] 買いオーダー
   price : [BigDecimal]
   size : [BigDecimal]
ltimestamp: [int] ローカルタイムスタンプ
# File lib/kaesen/zaif.rb, line 67
def depth
  h = get_ssl(@url_public + "/depth/btc_jpy")
  {
    "asks"       => h["asks"].map{|a,b| [BigDecimal.new(a.to_s), BigDecimal.new(b.to_s)]}, # to_s でないと誤差が生じる
    "bids"       => h["bids"].map{|a,b| [BigDecimal.new(a.to_s), BigDecimal.new(b.to_s)]}, # to_s でないと誤差が生じる
    "ltimestamp" => Time.now.to_i,
  }
end
market_buy(amount=BigDecimal.new("0.0")) click to toggle source

Buy the amount of Bitcoin from the market. 成行注文 買い. @abstract @param [BigDecimal] amount @return [hash] history_order_hash

success: [bool]
id: [String] order id in the market
rate: [BigDecimal]
amount: [BigDecimal]
order_type: [String] "sell" or "buy"
ltimestamp: [int] Local Timestamp
# File lib/kaesen/zaif.rb, line 183
def market_buy(amount=BigDecimal.new("0.0"))
  have_key?
  address = @url_private
  rate = (rate.to_i / 5) * 5
  body = {
    "method"        => "trade",
    "currency_pair" => "btc_jpy",
    "action"        => "bid",
    "price"         => 100000,
    "amount"        => amount.to_f.round(4)
  }
  h = post_ssl(address, body)
  result = h["success"].to_i == 1 ? "true" : "false"
  {
    "success"    => result,
    "id"         => h["return"]["order_id"].to_s,
    "rate"       => BigDecimal.new(rate.to_s),
    "amount"     => BigDecimal.new(amount.to_s),
    "order_type" => "sell",
    "ltimestamp" => Time.now.to_i,
  }
end
market_sell(amount=BigDecimal.new("0.0")) click to toggle source

Sell the amount of Bitcoin to the market. 成行注文 売り. @abstract @param [BigDecimal] amount @return [hash] history_order_hash

success: [bool]
id: [String] order id in the market
rate: [BigDecimal]
amount: [BigDecimal]
order_type: [String] "sell" or "buy"
ltimestamp: [int] Local Timestamp
# File lib/kaesen/zaif.rb, line 252
def market_sell(amount=BigDecimal.new("0.0"))
  have_key?
  address = @url_private
  rate = (rate.to_i / 5) * 5
  body = {
    "method"        => "trade",
    "currency_pair" => "btc_jpy",
    "action" => "ask",
    "price" => 5,
    "amount" => amount.to_f.round(4),
  }
  h = post_ssl(address, body)
  result = h["success"].to_i == 1 ? "true" : "false"
  {
    "success"    => result,
    "id"         => h["return"]["order_id"].to_s,
    "rate"       => BigDecimal.new(rate.to_s),
    "amount"     => BigDecimal.new(amount.to_s),
    "order_type" => "sell",
    "ltimestamp" => Time.now.to_i,
  }
end
opens() click to toggle source

Get open orders. @abstract @return [Array] open_orders_array

@return [hash] history_order_hash
  success: [bool]
  id: [String] order id in the market
  rate: [BigDecimal]
  amount: [BigDecimal]
  order_type: [String] "sell" or "buy"
  order_status: [String] "active", "completed" or "canceled"
ltimestamp: [int] Local Timestamp
# File lib/kaesen/zaif.rb, line 119
def opens
  have_key?
  address = @url_private
  body = { "method" => "active_orders" }
  h = post_ssl(address, body)
  h["return"].map{|key, value|
    order_type = "buy" # when value["action"] is "bid"
    order_type = "sell" if value["action"] == "ask"
    {
      "success"    => "true",
      "id"         => key,
      "rate"       => BigDecimal.new(value["price"].to_s),
      "amount"     => BigDecimal.new(value["amount"].to_s),
      "order_type" => order_type,
    }
  }
end
sell(rate, amount=BigDecimal.new(0)) click to toggle source

Sell the amount of Bitcoin at the rate. 指数注文 売り. Abstract Method. @param [BigDecimal] rate @param [BigDecimal] amount @return [hash] history_order_hash

success: [String] "true" or "false"
id: [String] order id at the market
rate: [BigDecimal] rate should be 5 multiples
amount: [BigDecimal] minimal amount is 0.0001 BTC
order_type: [String] "sell" or "buy"
ltimestamp: [int] ローカルタイムスタンプ
# File lib/kaesen/zaif.rb, line 218
def sell(rate, amount=BigDecimal.new(0))
  have_key?
  address = @url_private
  rate = (rate.to_i / 5) * 5
  body = {
    "method"        => "trade",
    "currency_pair" => "btc_jpy",
    "action" => "ask",
    "price" => rate,
    "amount" => amount.to_f.round(4),
  }
  h = post_ssl(address, body)
  result = h["success"].to_i == 1 ? "true" : "false"
  {
    "success"    => result,
    "id"         => h["return"]["order_id"].to_s,
    "rate"       => BigDecimal.new(rate.to_s),
    "amount"     => BigDecimal.new(amount.to_s),
    "order_type" => "sell",
    "ltimestamp" => Time.now.to_i,
  }
end
ticker() click to toggle source

Get ticker information. @return [hash] ticker

ask: [BigDecimal] 最良売気配値
bid: [BigDecimal] 最良買気配値
last: [BigDecimal] 最近値(?用語要チェック), last price
high: [BigDecimal] 高値
low: [BigDecimal] 安値
volume: [BigDecimal] 取引量
ltimestamp: [int] ローカルタイムスタンプ
vwap: [BigDecimal] 過去24時間の加重平均
# File lib/kaesen/zaif.rb, line 43
def ticker
  h = get_ssl(@url_public + "/ticker/btc_jpy")
  {
    "ask"        => BigDecimal.new(h["ask"].to_s),
    "bid"        => BigDecimal.new(h["bid"].to_s),
    "last"       => BigDecimal.new(h["last"].to_s),
    "high"       => BigDecimal.new(h["high"].to_s),
    "low"        => BigDecimal.new(h["low"].to_s),
    "volume"     => BigDecimal.new(h["volume"].to_s),
    "ltimestamp" => Time.now.to_i,
    "vwap"       => BigDecimal.new(h["vwap"].to_s)
  }
end

Private Instance Methods

get_nonce() click to toggle source
# File lib/kaesen/zaif.rb, line 339
def get_nonce
  pre_nonce = @@nonce
  next_nonce = Time.now.to_f

  if next_nonce <= pre_nonce
    @@nonce = pre_nonce + 1
  else
    @@nonce = next_nonce
  end

  return @@nonce
end
get_sign(req) click to toggle source
# File lib/kaesen/zaif.rb, line 352
def get_sign(req)
  secret = @api_secret
  text = req.body

  OpenSSL::HMAC::hexdigest(OpenSSL::Digest.new('sha512'), secret, text)
end
get_ssl(address) click to toggle source

Connect to address via https, and return json response.

# File lib/kaesen/zaif.rb, line 318
def get_ssl(address)
  uri = URI.parse(address)

  begin
    https = initialize_https(uri)
    https.start {|w|
      response = w.get(uri.request_uri)
      case response
        when Net::HTTPSuccess
          json = JSON.parse(response.body)
          raise JSONException, response.body if json == nil
          return json
        else
          raise ConnectionFailedException, "Failed to connect to #{@name}."
      end
    }
  rescue
    raise
  end
end
initialize_https(uri) click to toggle source
# File lib/kaesen/zaif.rb, line 307
def initialize_https(uri)
  https = Net::HTTP.new(uri.host, uri.port)
  https.use_ssl = true
  https.open_timeout = 5
  https.read_timeout = 15
  https.verify_mode = OpenSSL::SSL::VERIFY_PEER
  https.verify_depth = 5
  https
end
post_ssl(address, data={}) click to toggle source

Connect to address via https, and return json response.

# File lib/kaesen/zaif.rb, line 360
def post_ssl(address, data={})
  uri = URI.parse(address)
  data["nonce"] = get_nonce

  begin
    req = Net::HTTP::Post.new(uri)
    req.set_form_data(data)
    req["Key"] = @api_key
    req["Sign"] = get_sign(req)

    https = initialize_https(uri)
    https.start {|w|
      response = w.request(req)
      case response
        when Net::HTTPSuccess
          json = JSON.parse(response.body)
          raise JSONException, response.body if json == nil
          return json
        else
          raise ConnectionFailedException, "Failed to connect to #{@name}: " + response.value
      end
    }
  rescue
    raise
  end
end