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在上一课中，我们介绍了如何在 OceanOne 交易比特币。OceanOne 支持交易任何 Mixin Network 上的 token，包括所有的 ERC20 和 EOS token，不需要任何手续和费用，直接挂单即可。下面介绍如何将将一个 ERC20 token 挂上 OceanOne 交易。掌握了 ERC20 代币的交易方法，就可以交易任何其他 Mixin Network 代币了。
此处我们用一个叫做 Benz 的 ERC20 token 为例。这个 token 已经被充值进 Mixin Network，你可以在区块链浏览器看到这个 token 在 Mixin Network 内部的总数和交易
预备知识:
先将 Ben 币存入你的钱包，然后使用 getAssets API 读取它的 UUID.
取得该币的 UUID
调用 getAssets API 会返回 json 数据, 如:
- asset_id 币的 UUID.
- public_key 该币的当前钱包的地址.
- symbol 币的名称. 如: Benz.
if (args.type === TYPE_WALLET_ASSETS_INFO) {const assetsInfo = await newUserClient.getUserAssets();
console.log("-AssetID--Asset--Balance--public_key--");
assetsInfo.forEach(function(element) {
console.log(element.asset_id + " " +
element.symbol + " " +
element.balance + " " +
element.public_key + " " +
element.account_name + " " +
element.account_tag
);
});
// console.log(assetsInfo);
}调用 getUserAssets API 的完整输出如下:
Make your choose aw: Read Wallet All Asssets Information
You choice to : {type: 'aw: Read Wallet All Asssets Information'}
You wallet is : 0b10471b-1aed-3944-9eda-5ab947562761
-AssetID--Asset--Balance--public_key--
2b9c216c-ef60-398d-a42a-eba1b298581d Benz 99.9 0xA35722B0a5Ab20f2d2276999F5b18D42C71Ba688
6cfe566e-4aad-470b-8c9a-2fd35b49c68d EOS 0 eoswithmixin 30f0c36057b9b22151173b309bd0d79c
965e5c6e-434c-3fa9-b780-c50f43cd955c CNB 999.99999993 0xA35722B0a5Ab20f2d2276999F5b18D42C71Ba688
c6d0c728-2624-429b-8e0d-d9d19b6592fa BTC 0 15MySY7UnA827TRMQWuCKGiogCYXUmt21M限价挂单
- 挂限价买单 低于或者等于市场价的单.
- 挂限价卖单 高于或者是等于市场价的单.
OceanOne 支持三种基类价格: USDT, XIN, BTC, 即: Benz/USDT, Benz/XIN, Benz/BTC, 这儿示范 Benz/USDT.
限价挂卖单.
新币挂单后, 需要等一分钟左右，等 OceanOne 来初始化新币的相关数据.
else if (args.type === TYPE_OO_SELL_ERC_USDT) {
var prompts = [
{
name: 'price',
type: 'input',
message: "Input the price of ERC(Benz)/USDT:",
},
];
price = await inquirer.prompt(prompts);
var prompts = [
{
name: 'amount',
type: 'input',
message: "Input the amount of ERC20(Benz):",
},
];
amount = await inquirer.prompt(prompts);
console.log(price);
console.log(amount);
const memo = GenerateOceanMemo(USDT_ASSET_ID,"A",price.price);
const assetInfo = await newUserClient.getUserAsset(ERC20_BENZ);
console.log("The Wallet's USDT balance is ", assetInfo.balance);
if (assetInfo.balance >= amount.amount) {
const Obj = {
assetId: ERC20_BENZ,
recipientId: OCEANONE_BOT,
traceId: newUserClient.getUUID(),
amount: amount.amount,
memo: memo,
}
const transInfo = await newUserClient.transferFromBot(Obj);
console.log(transInfo);
console.log("The Order id is" + transInfo.trace_id + "It is needed to cancel the order!");
} else {console.log("Not enough ERC20_BENZ!");
}
}限价挂买单.
新币挂单后, 需要等一分钟左右，等 OceanOne 来初始化新币的相关数据.
else if (args.type === TYPE_OO_BUY_ERC_USDT) {
var prompts = [
{
name: 'price',
type: 'input',
message: "Input the price of ERC20(Benz)/USDT:",
},
];
price = await inquirer.prompt(prompts);
var prompts = [
{
name: 'amount',
type: 'input',
message: "Input the amount of USDT:",
},
];
amount = await inquirer.prompt(prompts);
console.log(price);
console.log(amount);
const memo = GenerateOceanMemo(ERC20_BENZ,"B",price.price);
const assetInfo = await newUserClient.getUserAsset(USDT_ASSET_ID);
console.log("The Wallet's USDT balance is ", assetInfo.balance);
if (assetInfo.balance >= amount.amount && assetInfo.balance >= 1) {
const Obj = {
assetId: USDT_ASSET_ID,
recipientId: OCEANONE_BOT,
traceId: newUserClient.getUUID(),
amount: amount.amount,
memo: memo,
}
const transInfo = await newUserClient.transferFromBot(Obj);
console.log(transInfo);
console.log("The Order id is" + transInfo.trace_id + "It is needed to cancel the order!");
} else {console.log("Not enough USDT!");
}
}读取币的价格列表
读取币的价格列表，来确认挂单是否成功!
else if (args.type === TYPE_OO_FETCH_ERC_USDT) {FetchOceanOneMarketInfos(ERC20_BENZ, USDT_ASSET_ID);
}
function FetchOceanOneMarketInfos(asset_id, base_asset) {
var instance = axios.create({
baseURL: "https://events.ocean.one/markets/" + asset_id + "-" + base_asset + "/book",
timeout: 3000,
headers: {'X-Custom-Header': 'foobar'}
});
instance.get()
.then(function(response) {console.log("--Price--Amount--Funds--Side")
response.data.data.data.asks.forEach(function(element) {
console.log(element.price + " " +
element.amount + " " +
element.funds + " " +
element.side);
});
response.data.data.data.bids.forEach(function(element) {
console.log(element.price + " " +
element.amount + " " +
element.funds + " " +
element.side);
});
// console.log(response.data.data.data.asks);
});
}ERC20 相关的操作指令
Commands list of this source code:
- 21: Fetch ERC20/USDT order book
- 24: Sell ERC20/USDT
- 27: Buy ERC20/USDT
- 28: Cancel the order
- q: Exit
完整的代码
正文完
