golang从json仅获取一个统计信息

Question

i tried to get one stat from web api request in json. This is what called https://api.coinmarketcap.com/v1/ticker/ethereum/

I use this github code example // Get info about coin

coinInfo, err := coinApi.GetCoinData("ethereum")
if err != nil {
    log.Println(err)
} else {
    fmt.Println(coinInfo)
}

My result in log says

{ethereum Ethereum ETH 2 830.48 0.100287 3.23573e+09 8.0977392218e+10 9.7506734e+07 9.7506734e+07 0.61 -0.65 -7.36 1518176353}

But i want only the price_usd if you look at the api domain. Why cannot get only price? Already tried coinInfo['price_usd'] but its all not working

Here you find the functions to run the GetCoinData https://github.com/miguelmota/go-coinmarketcap/blob/master/coinmarketcap.go

Can someone help me to get only the price_usd from api in golang?

Answer 1

According to the docs, you can use the PriceUsd field of the Coin type for this.