Node.js買賣比特幣教程

Airy 發布于2019-06-27 19:13 / 2123人閱讀

摘要：完整的步驟如下檢查比特幣或的余額，錢包地址。比特幣的到帳時間是個區塊的高度，約分鐘。

通過 Nodejs 買賣Bitcoin

Github Repo

方案一: 通過ExinCore API進行幣幣交易

Exincore 提供了基于Mixin Network的幣幣交易API.

你可以支付USDT給ExinCore, ExinCore會以最低的價格，最優惠的交易費將你購買的比特幣轉給你, 每一幣交易都是匿名的，并且可以在區塊鏈上進行驗證，交易的細節只有你與ExinCore知道！

ExinCore 也不知道你是誰，它只知道你的UUID.

預備知識:

你先需要創建一個機器人, 方法在教程一.

安裝依賴包

正如教程一里我們介紹過的，我們需要依賴 mixin-node-client, 你應該先安裝過它了，這兒我們再安裝其它的軟件包.

  yarn add fast-csv inquirer msgpack5 path pem-file

  npm i fast-csv inquirer msgpack5 path pem-file

充幣到 Mixin Network, 并讀出它的余額.

通過ExinCore API, 可以進行BTC, USDT, EOS, ETH 等等交易，此處演示用 USDT購買BTC 或者用BTC購買USDT。交易前，先檢查一下錢包地址。
完整的步驟如下:

檢查比特幣或USDT的余額，錢包地址。并記下錢包地址。

從第三方交易所或者你的冷錢包中，將幣充到上述錢包地址。

再檢查一下幣的余額，看到帳與否。(比特幣的到帳時間是5個區塊的高度，約100分鐘)。

比特幣與USDT的充值地址是一樣的。

  let aesKey = "";
  const privateKeyBytes = pem.decode(Buffer.from(data[0]));
  const aesKeyBuffer = await oaepDecrypt(
    Buffer.from(data[1], "base64"),
    privateKeyBytes,
    "SHA-256",
    Buffer.from(data[2])
  );
  aesKey = Buffer.from(aesKeyBuffer).toString("base64");
  // console.log(aesKey);
  const newUserConfig = {clientId: data[3], aesKey: aesKey,
                         privateKey: data[0], sessionId: data[2],
                         clientSecret: "do not need", assetPin: data[4]};
  // console.log(newUserConfig);
  const newUserClient = new HttpClient(newUserConfig);
  if ( args.type === TYPE_ASSETS_INFO ) {
    const assetsInfo = await newUserClient.getUserAssets();
    console.log(assetsInfo);
  } else if (args.type === TYPE_BITCOIN_INFO) {
     // console.log("You choice to 1:", args);
     const assetInfo = await newUserClient.getUserAsset(BTC_ASSET_ID);
     console.log("Bitcoin address is ", assetInfo.public_key);
     console.log("Bitcoin balance is ", assetInfo.balance);
     console.log("Bitcoin price is (USD) ", assetInfo.price_usd);

查詢ExinCore市場的價格信息

如何來查詢ExinCore市場的價格信息呢？你要先了解你交易的基礎幣是什么，如果你想買比特幣，賣出USDT,那么基礎貨幣就是USDT;如果你想買USDT,賣出比特幣，那么基礎貨幣就是比特幣.

  if (  args.type === TYPE_FETCH_USDT_MARKETINFO ) {
   // Make a request
   var instance = axios.create({
   baseURL: "https://exinone.com/exincore/markets",
   timeout: 3000,
   headers: {"X-Custom-Header": "foobar"}
   });
   instance.get("?base_asset=" + USDT_ASSET_ID)
   .then(function(response) {
     console.log(response.data.data);
   });
  } else if (  args.type === TYPE_FETCH_BTC_MARKETINFO ) {
  var instance = axios.create({
  baseURL: "https://exinone.com/exincore/markets",
  timeout: 3000,
  headers: {"X-Custom-Header": "foobar"}
  });
  instance.get("?base_asset=" + BTC_ASSET_ID)
  .then(function(response) {
    console.log(response.data.data);
  });
  }

交易前，創建一個Memo!

在第二章里,基于Mixin Network的 Nodejs 比特幣開發教程: 機器人接受比特幣并立即退還用戶, 我們學習過退還用戶比特幣，在這里，我們除了給ExinCore支付幣外，還要告訴他我們想購買的幣是什么，即將想購買的幣存到memo里。

const bytes = Buffer.from(
  BTC_ASSET_ID.replace(/-/g, ""),
  "hex"
);
const memo = msgpack
  .encode({
    A: bytes,
  })
  .toString("base64");

console.log(memo);

幣幣交易的完整流程

轉幣給ExinCore時，將memo寫入你希望購買的幣，否則，ExinCore會直接退幣給你！
如果你想賣出比特幣買入USDT,調用方式如下：

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";

//change to your third exchange/cold  btc wallet address
const BTC_WALLET_ADDR  =    "14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C";
const EOS_WALLET_NAME  =    "huobideposit";
const EOS_WALLET_TAG   =    "1872050";
//change to your mixin messenger account "s uuid
const MASTER_UUID      =    "0b4f49dc-8fb4-4539-9a89-fb3afc613747";

else if ( args.type === TYPE_EXCHANGE_BTC_USDT ) {
  // Pack memo
  const bytes = Buffer.from(
    USDT_ASSET_ID.replace(/-/g, ""),
    "hex"
  );
  const memo = msgpack
    .encode({
      A: bytes,
    })
    .toString("base64");

  console.log(memo); // gaFBxBDG0McoJiRCm44N2dGbZZL6
  const assetInfo = await newUserClient.getUserAsset(BTC_ASSET_ID);
  console.log("The Wallet "s BTC balance is ", assetInfo.balance);
  if ( assetInfo.balance >= 0.0001 ) {
    const Obj = {
      assetId: BTC_ASSET_ID,
      recipientId: EXIN_BOT,
        traceId: newUserClient.getUUID(),
        amount: "0.0001",
        memo: memo,
      }
      console.log(Obj);
      newUserClient.transferFromBot(Obj);
  } else {
    console.log("Not enough BTC!");
  }
}

如果你想賣出USDT買入比特幣,調用方式如下：

else if ( args.type === TYPE_EXCHANGE_USDT_BTC ) {
 // Pack memo
 const bytes = Buffer.from(
   BTC_ASSET_ID.replace(/-/g, ""),
   "hex"
 );
 const memo = msgpack
   .encode({
     A: bytes,
   })
   .toString("base64");

 console.log(memo);
 const assetInfo = await newUserClient.getUserAsset(USDT_ASSET_ID);
 console.log("The Wallet "s BTC balance is ", assetInfo.balance);
 if ( assetInfo.balance >= 1 ) {
   const Obj = {
     assetId: USDT_ASSET_ID,
     recipientId: EXIN_BOT,
       traceId: newUserClient.getUUID(),
       amount: "1",
       memo: memo,
     }
     console.log(Obj);
     newUserClient.transferFromBot(Obj);
 } else {
   console.log("Not enough USDT!");
 }
}

交易完成后，Exincore會將你需要的幣轉到你的帳上，同樣，會在memo里，記錄成交價格，交易費用等信息！你只需要按下面的方式解開即可！

getSnapshots 讀取錢包的交易記錄。

if ( args.type === TYPE_READ_SNAPSHOTS ) {
  const prompts = [
    {
      name: "datetime",
      type: "input",
      message: "Input iso8601 datetime: ",
    },
  ];
 const answers = await inquirer.prompt(prompts);
 console.log(answers);
 console.log(encodeURIComponent(answers.datetime));
 const snapshots = await newUserClient.getSnapshots({ limit: 10, asset: USDT_ASSET_ID, offset: answers.datetime, order: "ASC"});
 // console.log(snapshots);
 snapshots.forEach(function(element) {
   if ( element.amount > 0) {
     if ( element.data != null ) {
        console.log(element.amount);
        console.log(element.data);
        const buf = Buffer.from(element.data, "base64");
        console.log(msgpack.decode(buf));
        const codeInt = msgpack.decode(buf).C;
        if ( codeInt === 1000 ) {
          console.log("Successful Exchange");
        } else { console.log("Go to there get more info https://github.com/exinone/exincore#code error code: " + codeStr);}

        const hexStr = Buffer.from(msgpack.decode(buf).FA).toString("hex");
        const uuid = `${hexStr.slice(0,8)}-${hexStr.slice(8,12)}-${hexStr.slice(12,16)}-${hexStr.slice(16,20)}-${hexStr.slice(20)}`;
        console.log("Asset uuid is :" + uuid);
        const priceStr = msgpack.decode(buf).P;
        console.log("Price is :" + priceStr);
        const feeStr = msgpack.decode(buf).F;
        console.log("Fee is :" + feeStr);
        console.log("percent of Fee is :" + (feeStr/element.amount)* 100 + " %");
        const tStr = msgpack.decode(buf).T;
        console.log("T is :" + tStr);
     }
   }
 });
}

一次成功的交易如下：

Make your choose 16: Read snapshots
You choice to : { type: "16: Read snapshots" }
You wallet is : 0b10471b-1aed-3944-9eda-5ab947562761
? Input iso8601 datetime:  2019-04-08T05:16:33.615253Z
{ datetime: "2019-04-08T05:16:33.615253Z" }
2019-04-08T05%3A16%3A33.615253Z
0.5228004
hqFDzQPooVCnNTI0OC45OKFGqTAuMDAxMDQ5OKJGQcQQgVsLGidkNzaPqkLWlPpiCqFUoVKhT8QQeJyt3MrqSGOpbqzFXy5JUw==
{ C: 1000,
  P: "5248.98",
  F: "0.0010498",
  FA: ,
  T: "R",
  O:  }
Successful Exchange
Asset uuid is :815b0b1a-2764-3736-8faa-42d694fa620a
Price is :5248.98
Fee is :0.0010498
percent of Fee is :0.2008032128514056 %
T is :R
 You select the : 0b10471b-1aed-3944-9eda-5ab947562761
You select the wallet 0b10471b-1aed-3944-9eda-5ab947562761

讀取幣的余額

通過讀取幣的余額，來確認交易情況！

if (args.type === TYPE_BITCOIN_INFO) {
   // console.log("You choice to 1:", args);
   const assetInfo = await newUserClient.getUserAsset(BTC_ASSET_ID);
   console.log("Bitcoin address is ", assetInfo.public_key);
   console.log("Bitcoin balance is ", assetInfo.balance);
   console.log("Bitcoin price is (USD) ", assetInfo.price_usd);
}

源代碼執行

編譯執行，即可開始交易了.

[x] node bitcoin-wallet-nodejs.js 編譯項目.

本代碼執行時的命令列表:

Make your choose(select the uuid for open the specified wallet): 0b10471b-1aed-3944-9eda-5ab947562761
You select the : 0b10471b-1aed-3944-9eda-5ab947562761
You select the wallet 0b10471b-1aed-3944-9eda-5ab947562761
?
Make your choose (Use arrow keys)

0: Read All Asssets Balance

1: Read Bitcoin Balance & Address

2: Read USDT Balance & Address

3: Read EOS Balance & Address

4: Transfer BTC from Bot to Wallet

5: Transfer EOS from Bot to Wallet

6: Transfer BTC from Wallet to Master

7: Transfer EOS from Wallet to Master

8: Verify Wallet PIN

9: BTC withdraw

10: EOS withdraw

11: Fetch BTC withdrawal info

12: Fetch EOS withdrawal info

13: Fetch USDT Market info

14: Fetch BTC Market info

14: Transfer 0.0001 BTC buy USDT

15: Transfer USDT $1 buy BTC

16: Read snapshots

Exit

完整代碼

Solution Two: List your order on Ocean.One exchange

GPU云服務器云服務器 node.js教程以太幣和比特幣比特幣比特幣勒索

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