Injective Protocol官方文档翻译(十) -预言机(Oracle)

一、预言机(Oracle)

1. 一般概念

Oracle有一个功能：

更新资产的指数价格

1. 更新指数价格
   指数价格用于计算头寸的净现值。它将由Oracle定期更新。

2. 资金费 （Funding Fee）

The funding fee is a critical piece to ensure convergence of market prices to the real underlying asset price. It consists of two components:
融资费用是确保市场价格与实际基础资产价格趋同的关键因素。它由两个部分组成：

1. Index Price: The price provided by the oracle.
   预言机 提供的价格
2. Futures VWAP: The VWAP (Volume Weighted Average Price), which emerges from the trades in injective futures and the indexPrice. It is same with VWAP if the price is changed to (futuresPrice - indexPrice) / indexPrice.
   期货VWAP：