如何用-Ruby-买卖Bitcoin

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Exincore 提供了基于 Mixin Network 的币币交易 API.

你可以支付 USDT 给 ExinCore, ExinCore 会以最低的价格，最优惠的交易费将你购买的比特币转给你, 每一币交易都是匿名的，并且可以在区块链上进行验证，交易的细节只有你与 ExinCore 知道！

ExinCore 也不知道你是谁，它只知道你的 UUID.

你先需要创建一个机器人, 方法在教程一.

正如教程一里我们介绍过的，我们需要依赖 mixin-bot, 你应该先安装过它了，这儿我们再安装 easy-uuid, msgpack 两个软件包.

 gem install msgpack
 gem install easy-uuid

ExinCore 可以进行 BTC, USDT, EOS, ETH 等等交易，这儿演示如果用 USDT 购买 BTC 或者用 BTC 购买 USDT, 交易前，先检查一下钱包地址！
完整的步骤如下:

检查比特币或 USDT 的余额，钱包地址。并记下钱包地址。
从第三方交易所或者你的冷钱包中，将币充到上述钱包地址。
再检查一下币的余额，看到帐与否。(比特币的到帐时间是 5 个区块的高度，约 100 分钟)。

请注意，比特币与 USDT 的地址是一样的。

if cmd == "aw"
  assetsInfo = walletAccount.read_assets()
  p "--------The Wallet Assets List-----------------"
  assetsInfo["data"].each {|x| puts x["symbol"] + " " +
                              x["balance"] + "" + x["public_key"] +
                              x["account_name"] + "" + x["account_tag"]}
  p "----------End of Wallet Assets --------------"
end

如果来查询 ExinCore 市场的价格信息呢？你要先了解你交易的基础币是什么，如果你想买比特币，卖出 USDT, 那么基础货币就是 USDT; 如果你想买 USDT, 卖出比特币，那么基础货币就是比特币.

if cmd == "8"
  Utils.ExinCoreMarketPriceRequest(USDT_ASSET_ID)
end
if cmd == "9"
  Utils.ExinCoreMarketPriceRequest(BTC_ASSET_ID)
end

def self.ExinCoreMarketPriceRequest(asset_id)
  full_url = "https://exinone.com/exincore/markets?base_asset=" + asset_id
  p full_url
  data = HTTP.get(full_url).body
  body = ""
  redData = data.readpartial
  while  redData != nil
    body = body + redData
    redData = data.readpartial
  end
  result = ActiveSupport::JSON.decode(body).with_indifferent_access
  result["data"].each { |x|
        puts x["exchange_asset_symbol"] +  "/" +  x["base_asset_symbol"] + " " +
             x["price"] + "" + x["minimum_amount"] +" "+ x["maximum_amount"] +" "+ x["exchanges"][0]
      }
end

在第二章里, 基于 Mixin Network 的 Ruby 比特币开发教程: 机器人接受比特币并立即退还用户, 我们学习过退还用户比特币，在这里，我们除了给 ExinCore 支付币外，还要告诉他我们想购买的币是什么，即将想购买的币存到 memo 里。

memo1 = Base64.encode64(MessagePack.pack({'A' => UUID.parse(USDT_ASSET_ID).to_raw
}))
memo = memo1.sub("\n","")

转币给 ExinCore 时，将 memo 写入你希望购买的币, 这个 memo 别错了，否则，ExinCore 需要人工操作来退币！
如果你想卖出比特币买入 USDT, 调用方式如下：

const EXIN_BOT        = "61103d28-3ac2-44a2-ae34-bd956070dab1";
const BTC_ASSET_ID    = "c6d0c728-2624-429b-8e0d-d9d19b6592fa";
const EOS_ASSET_ID    = "6cfe566e-4aad-470b-8c9a-2fd35b49c68d";
const USDT_ASSET_ID   = "815b0b1a-2764-3736-8faa-42d694fa620a";
if cmd == "5"
  memo1 = Base64.encode64(MessagePack.pack({'A' => UUID.parse(USDT_ASSET_ID).to_raw
  }))
  memo = memo1.sub("\n","")
  p memo
  transInfo = walletAccount.create_transfer(walletAccount.encrypt_pin(DEFAULT_PIN),
                                    {
                                      asset_id: BTC_ASSET_ID,
                                      opponent_id: EXIN_BOT,
                                      amount: "0.0001",
                                      trace_id: SecureRandom.uuid,
                                      memo: memo
                                    })
   p transInfo
end

如果你想卖出 USDT 买入比特币, 调用方式如下：

if cmd == "6"
  memo1 = Base64.encode64(MessagePack.pack({'A' => UUID.parse(BTC_ASSET_ID).to_raw
  }))
  memo = memo1.sub("\n","")
  p memo
  transInfo = walletAccount.create_transfer(walletAccount.encrypt_pin(DEFAULT_PIN),
                                    {
                                      asset_id: USDT_ASSET_ID,
                                      opponent_id: EXIN_BOT,
                                      amount: "1",
                                      trace_id: SecureRandom.uuid,
                                      memo: memo
                                    })
   p transInfo
end

交易完成后，Exincore 会将你需要的币转到你的帐上，同样，会在 memo 里，记录成交价格，交易费用等信息！你只需要按下面的方式解开即可！

read_snapshots 读取钱包的交易记录。

if cmd == "7"
  if wallet_userid == "5e4ad097-21e8-3f6b-98f7-9dc74dd99f77"
    dt = "2019-05-23T09:48:04.582099Z"
  else
    puts "Input the snapshots datetime:"
    dt = gets.chomp
  end
  p CGI.escape(dt)
  snaps = walletAccount.read_snapshots({
                                      limit: "10",
                                      offset: CGI.escape(dt),
                                      asset: BTC_ASSET_ID,
                                      order: "ASC"
                                      })
  snaps["data"].each { |x|
                      if x["amount"].to_f > 0
                        if x["data"] != nil
                          uData = MessagePack.unpack(Base64.decode64(x["data"]))
                          p uData
                          p "The code is" + uData["C"].to_s + "Price is" + uData["P"] + "Fee is" +
                            uData["F"]
                          p "Fee is Asset UUID is" + UUID.parse(uData["FA"]).to_s
                          p "Order id is" + UUID.parse(uData["O"]).to_s
                        end
                      end
                      }
end

一次成功的交易如下：

Make your choose(eg: q for Exit!):
7
"2019-05-23T09%3A48%3A04.582099Z"
{"C"=>1000, "P"=>"7562.91", "F"=>"0.000000264", "FA"=>"\xC6\xD0\xC7(&$B\x9B\x8E\r\xD9\xD1\x9Be\x92\xFA", "T"=>"R", "O"=>"\xC4\x00*\a\xF1\xB1C9\xBC\xCE%\xC3C\x88^R"}
"The code is 1000 Price is 7562.91 Fee is 0.000000264"
"Fee is Asset UUID is c6d0c728-2624-429b-8e0d-d9d19b6592fa"
"Order id is  c4002a07-f1b1-4339-bcce-25c343885e52"
-------------------------------------------------------------------------

通过读取币的余额，来确认交易情况！

if cmd == "aw"
  assetsInfo = walletAccount.read_assets()
  p "--------The Wallet Assets List-----------------"
  assetsInfo["data"].each {|x| puts x["symbol"] + " " +
                              x["balance"] + "" + x["public_key"] +
                              x["account_name"] + "" + x["account_tag"]}
  p "----------End of Wallet Assets --------------"
end

执行 ruby bitcoin_wallet-ruby.rb 即可开始交易了.

1: Create Bitcoin Wallet and update PIN
2: Read Bitcoin balance & address
3: Read USDT balance & address
4: Read EOS balance & address
tbb:Transfer BTC from Bot to Wallet
tbm:Transfer BTC from Wallet to Master
teb:Transfer EOS from Bot to Wallet
tem:Transfer EOS from Wallet to Master
tub:Transfer USDT from Bot to Wallet
tum:Transfer USDT from Wallet to Master
tcb:Transfer CNB from Bot to Wallet
tcm:Transfer CNB from Wallet to Master
5: Pay 0.0001 BTC to ExinCore buy USDT
6: Pay $1 USDT to ExinCore buy BTC
7: Read Snapshots
8: Fetch market price(USDT)
9: Fetch market price(BTC)
ab: Read Bot Assets
aw: Read Wallet Assets
q: Exit

Make your choose(eg: q for Exit!):

完整代码

方案一: 通过 ExinCore API 进行币币交易

预备知识:

安装依赖包

充币到 Mixin Network, 并读出它的余额.

查询 ExinCore 市场的价格信息

交易前，创建一个 Memo!

币币交易的完整流程

读取币的余额

源代码执行

Solution Two: List your order on Ocean.One exchange

Just My Socks（注册教程内含优惠码）