电商交易

 

流程：

下单-支付-履约

 

订单

1.创建订单，交易会提供一个创建订单接口，统一下单

  下单的动作，是前台负责下单按钮的业务方，

2.金额计算，按金额占比，计算商品行价格。交易负责

3.优惠核销，红包、券、积分。营销系统负责

 

 

支付

履约

 

[How we store and process millions of orders daily](https://engineering.grab.com/how-we-store-millions-orders)

 

[Search architecture revamp](https://engineering.grab.com/search-architecture-revamp)

 

[Supporting large campaigns at scale](https://engineering.grab.com/supporting-large-campaigns-at-scale)