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PHP比特币开发教程在去中心化交易所OceanOne上挂单买卖比特币


上一章介绍了 Exincore,你可以 1 秒完成资产的市价买卖。如果你想限定价格买卖,或者买卖一些 exincore 不支持的资产,你需要 OceanOne。

方案二: 挂单 Ocean.One 交易所

Ocean.one 是基于 Mixin Network 的去中心化交易所,它性能一流。
你可以在 OceanOne 上交易任何资产,只需要将你的币转给 OceanOne, 将交易信息写在交易的 memo 里,OceanOne 会在市场里列出你的交易需求,
交易成功后,会将目标币转入到你的 MixinNetwork 帐上,它有三大特点与优势:

  • 不需要在 OceanOne 注册
  • 不需要存币到交易所
  • 支持所有 Mixin Network 上能够转账的资产,所有的 ERC20 EOS 代币。

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-sdk-php, 你应该已经先安装过它了.

安装依赖的库

第四课, 在上一课中已经安装好了.

充币到 Mixin Network, 并读出它的余额.

此处演示用 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)。

比特币与 USDT 的充值地址是一样的。

  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";

  $mixinSdk_eachAccountInstance = new MixinSDK(GenerateConfigByCSV($data));
  $asset_info = $mixinSdk_eachAccountInstance->Wallet()->readAsset(BTC_ASSET_ID);
  print_r("Bitcoin wallet address is :".$asset_info["public_key"]."\n");
  print_r("Bitcoin wallet balance is :".$asset_info["balance"]."\n");

取得 Ocean.one 的市场价格信息

如何来查询 Ocean.one 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 ($ocmd == '1') {getOceanOneMarketInfos(XIN_ASSET_ID,USDT_ASSET_ID);}
function getOceanOneMarketInfos($targetCoin, $baseCoin)  {$client = new GuzzleHttp\Client();
  $baseUrl = "https://events.ocean.one/markets/".$targetCoin."-".$baseCoin."/book";
  $res = $client->request('GET', $baseUrl, []);
  if ($res->getStatusCode() == "200") {// echo $res->getStatusCode() . PHP_EOL;
    $resInfo = json_decode($res->getBody(), true);
    echo "Side | Price | Amount | Funds" . PHP_EOL;
    foreach ($resInfo["data"]["data"]["asks"] as $key => $exchange) {echo $exchange["side"] . "" . $exchange["price"] ." ". $exchange["amount"] ." ". $exchange["funds"] . PHP_EOL;
    }
    foreach ($resInfo["data"]["data"]["bids"] as $key => $exchange) {echo $exchange["side"] . "" . $exchange["price"] ." ". $exchange["amount"] ." ". $exchange["funds"] . PHP_EOL;
    }
  }
}

交易前,创建一个 Memo!

在第二章里, 基于 Mixin Network 的 PHP 比特币开发教程: 机器人接受比特币并立即退还用户, 我们学习过转帐,这儿我们介绍如何告诉 Ocean.one,我们给它转帐的目的是什么,信息全部放在 memo 里.

  • side 方向,”B” 或者 “A”, “B” 是购买, “A” 是出售.
  • asset 目标虚拟资产的 UUID.
  • price 价格,如果操作方向是 ”B”, 价格就是 AssetUUID 的价格; 如果操作方向是 ”B”, 价格就是转给 Ocean.one 币的价格.
function GenerateOrderMemo($side, $asset, $price) :string {
  $memo = base64_encode(MessagePack::pack([
                       'S' => $side,
                       'A' => Uuid::fromString($asset)->getBytes(),
                       'P' => $price,
                       'T' => 'L',
                       ]));
  return $memo;
}

出售 XIN 的例子

转打算出售的 XIN 给 Ocean.one(OCEANONE_BOT), 将你打算换回来的目标虚拟资产的 UUID 放入 memo.

const OCEANONE_BOT     = "aaff5bef-42fb-4c9f-90e0-29f69176b7d4";
const USDT_ASSET_ID    = "815b0b1a-2764-3736-8faa-42d694fa620a";
const XIN_ASSET_ID     = "c94ac88f-4671-3976-b60a-09064f1811e8";

if ($ocmd == 's1') {$p = readline("Input the Price of XIN/USDT:");
  $a = readline("Input the Amount of XIN:");
  $tMemo = GenerateOrderMemo("A",USDT_ASSET_ID,$p);
  echo $tMemo .  PHP_EOL;
  $mixinSdk_WalletInstance = GenerateWalletSDKFromCSV();
  $asset_info = $mixinSdk_WalletInstance->Wallet()->readAsset(XIN_ASSET_ID);
  print_r($asset_info);
  if ((float) $asset_info["balance"] >= (float) $a ) {$transInfos = $mixinSdk_WalletInstance->Wallet()->transfer(XIN_ASSET_ID,OCEANONE_BOT,
                                                $mixinSdk_WalletInstance->getConfig()['default']['pin'],
                                                $a,
                                                $tMemo);
    print_r($transInfos);
    echo "The Order ID (trace_id) is:" . $transInfos["trace_id"] . PHP_EOL;
  } else {echo "Not enough XIN!\n";}
}

如果你是打算买 XIN, 操作如下:

if ($ocmd == 'b1') {$p = readline("Input the Price of XIN/USDT:");
  $a = readline("Input the Amount of USDT:");
  $tMemo = GenerateOrderMemo("B",XIN_ASSET_ID,$p);
  echo $tMemo .  PHP_EOL;
  $mixinSdk_WalletInstance = GenerateWalletSDKFromCSV();
  $asset_info = $mixinSdk_WalletInstance->Wallet()->readAsset(USDT_ASSET_ID);

  print_r($asset_info);
  if (((float) $asset_info["balance"] >= 1) && ((float) $asset_info["balance"] >= (float) $a ) ) {$transInfos = $mixinSdk_WalletInstance->Wallet()->transfer(USDT_ASSET_ID,OCEANONE_BOT,
                                                $mixinSdk_WalletInstance->getConfig()['default']['pin'],
                                                $a,
                                                $tMemo);
    print_r($transInfos);
    echo "The Order ID (trace_id) is:" . $transInfos["trace_id"] . PHP_EOL;
  } else {echo "Not enough USDT!\n";}
}

一个成功的挂单如下:

Input the Price of XIN/USDT: 112
Input the Amount of USDT: 1
hKFToUKhQcQQyUrIj0ZxOXa2CgkGTxgR6KFQozExMqFUoUw=
client id is:26b20aa5-40c0-3e00-9de0-666cfb6f2daa
Array
([type] => asset
    [asset_id] => 815b0b1a-2764-3736-8faa-42d694fa620a
    [chain_id] => c6d0c728-2624-429b-8e0d-d9d19b6592fa
    [symbol] => USDT
    [name] => Tether USD
    [icon_url] => https://images.mixin.one/ndNBEpObYs7450U08oAOMnSEPzN66SL8Mh-f2pPWBDeWaKbXTPUIdrZph7yj8Z93Rl8uZ16m7Qjz-E-9JFKSsJ-F=s128
    [balance] => 1
    [public_key] => 17z1Rq3VsyvvXvGWiHT8YErjBoFgnhErB8
    [account_name] =>
    [account_tag] =>
    [price_btc] => 0.00019038
    [price_usd] => 1.00036293
    [change_btc] => 0.013486479778200063
    [change_usd] => 0.005376748815937048
    [asset_key] => 815b0b1a-2764-3736-8faa-42d694fa620a
    [confirmations] => 6
    [capitalization] => 0
)
Array
([type] => transfer
    [snapshot_id] => f4b1f8d6-004a-4d2b-997d-4d0acf1096cd
    [opponent_id] => aaff5bef-42fb-4c9f-90e0-29f69176b7d4
    [asset_id] => 815b0b1a-2764-3736-8faa-42d694fa620a
    [amount] => -1
    [trace_id] => b12eed67-6cf4-481f-b25b-dd41f28e1984
    [memo] => hKFToUKhQcQQyUrIj0ZxOXa2CgkGTxgR6KFQozExMqFUoUw=
    [created_at] => 2019-04-30T01:17:02.206240549Z
    [counter_user_id] => aaff5bef-42fb-4c9f-90e0-29f69176b7d4
)
The Order ID (trace_id) is: b12eed67-6cf4-481f-b25b-dd41f28e1984

取消挂单

Ocean.one 将 trace_id 当做订单,比如上面的例子,b12eed67-6cf4-481f-b25b-dd41f28e1984 就是订单号,我们用他来取消订单。

if ($ocmd == 'c') {$mixinSdk_WalletInstance = GenerateWalletSDKFromCSV();
  $asset_info = $mixinSdk_WalletInstance->Wallet()->readAsset(CNB_ASSET_ID);
  if (((float) $asset_info["balance"] == 0) ) {echo "Please deposit some CNB to this Wallet!" . PHP_EOL;} else {$orderid = readline("Input the Order id ( trace_id):");
     $cMemo =  base64_encode(MessagePack::pack(['O' => Uuid::fromString($orderid)->getBytes(),]));
     $transInfos = $mixinSdk_WalletInstance->Wallet()->transfer(CNB_ASSET_ID,OCEANONE_BOT,
                                                 $mixinSdk_WalletInstance->getConfig()['default']['pin'],
                                                 "0.00000001",
                                                 $cMemo);
     print_r($transInfos);
  }
}

通过读取资产余额,来确认到帐情况

Check the wallet’s balance.

if ($line == 'aw') {$mixinSdk_eachAccountInstance = GenerateWalletSDKFromCSV();
  $asset_info = $mixinSdk_eachAccountInstance->Wallet()->readAssets();
  foreach ($asset_info as $key => $asset) {echo  $asset["symbol"] . "" . $asset["asset_id"] ."   ". $asset["balance"] ."   ". $asset["public_key"].PHP_EOL;
  }
}

源代码执行

运行就可以开始交易了.

  • php bitcoin_wallet.php 运行项目

本代码执行时的命令列表:

  • o: Ocean.One Exchange
  • q: Exit

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

  • 1: Fetch XIN/USDT orders
  • s1: Sell XIN/USDT
  • b1: Buy XIN/USDT
  • 2: Fetch ERC20(Benz)/USDT orders
  • s2: Sell Benz/USDT
  • b2: Buy Benz/USDT
  • q: Exit

完整代码

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