cal_croi

func FetchHistoricalPrice ¶

func FetchHistoricalPrice(tokenSymbol string, timeStamp int64) (*big.Int, error)

FetchHistoricalPrice fetch token historical price (USD) * 10^6

func GetCurrentHeight ¶

func GetCurrentHeight() (int64, error)

GetCurrentHeight return current height of ethereum

func GetUniswapV2ROI ¶

func GetUniswapV2ROI(fromTokenName, toTokenName string, poolAddr common.Address) (*big.Int, *big.Int, error)

返回$ ROI & NET ROI 百分比，结果*10^6

func MinBigInt ¶

func MinBigInt(a, b *big.Int) *big.Int

MinBigInt get the smallest one

if a <= b: return a; else return b

func TokenDecimial ¶

func TokenDecimial(tokenSymbol string) *big.Int

TokenDecimial return token's decimial

when tokenDecimial is 10*6
will return: *big.NewInt(1000000)

func TwoTokenWorth ¶

func TwoTokenWorth(token0Amount, token1Amount, token0Price, token1Price *big.Int, token0Symbol, token1Symbol string) *big.Int

TwoTokenWorth return two token's worth in USD

tokenPrice should be 10^6 decimial in USD