提示卖出失败
User System
交易失败【订单状态：交易失败】
CyraMeta User
CyraMeta
Yes
选择卖出币种
Enter transaction password
快捷买入沙丘
Top up e-wallet
提示卖出成功
Visit trading page
输入支付密码
结束
是否卖出成功
DoneKYC?
CyraMeta用户端
Calculate the total price of the purchase price/the total price paid
是
Enter the purchase quantity/amount
静默开户，用户无感知，只要KYC成功就马上开通交易账户
默认用户已开户
Do KYC Process
Select a currency to purchase
访问快捷买币页面（卖出）
点击卖出
快捷卖出-沙丘
No
Update user assets
End
创建卖出订单【订单状态：打款中】
输入卖出数量
Whether the user's e-wallet balance is greater than the user's total purchase price
Log in / Register
Binance API
Is the transaction password correct?
重新输入
返回已冻结资产
Call buy APIcreate buy order
Go Trading
冻结卖出部分资产
订单服务
Re-enter the password
卖出币种余额是否大于输入数量
否
更扣减已冻结资产
沙丘开户-开通Binance子账户
Binance买入计算公式：买入单价为x，y为买入个数；卖入手续费：< 5jt: ？？5jt - 1m: ？？1m - 2m: ？？> 2m: ？？卖入税费：？？实付（示例）=y*[x+x*0.001+x*0.0011]
Order Service
Asset Wallet
Unable to buy
用户系统
密码是否正确
Pop up notification : Buy successfuly
Visit quick buy page (buy)
快捷买卖服务
Whether the purchase is successful?
Trading order can only be closed/failed after two failed retries on entering the password
1. The minimum limit configured in the console 2. Do you need to set the maximum purchase limit?
买入单价为x，y为卖出个数；卖出手续费：< 10jt: ？？10jt - 50jt: ？？> 50jt: ？？卖出税费：sell ？？实收（示例）=y*[x-x*手续费-x*税费]
开始
Create transaction order
Transaction Service
Binance
Click buy
系统转款到用户电子钱包（默认转款成功）
交易成功【订单状态：卖出成功】
Open Binance account
Start
Click trading button
调用卖出接口
User-submitted prices are locked at this point (to be determined)
log in?
Payment System
Pop up notification: failed to buy
沙丘资产账户
计算卖出总价
Whether the input quantity/amount is greater than the limit？
