方案一: 通过ExinCore API进行币币交易
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.
预备知识:
你先需要创建一个机器人, 方法在 教程一.
安装依赖包
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充币到 Mixin Network, 并读出它的余额.
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查询ExinCore市场的价格信息
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)endif cmd == "9" Utils.ExinCoreMarketPriceRequest(BTC_ASSET_ID)enddef 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交易前，创建一个Memo!
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","")币币交易的完整流程
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 transInfoend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 transInfoend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"-------------------------------------------------------------------------读取币的余额
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源代码执行
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