兄弟连区块链入门到精通教程基础开发通过接口查询xrp提币情况

import (
"errors"
"fmt"
"math"
"strconv"
"strings"

"github.com/buger/jsonparser"
"github.com/levigross/grequests"
)

const min = 0.000000000001

func isEqual(f1, f2 float64) bool {
if f1 < f2 {
return isEqual(f2, f1)
}
return math.Dim(f1, f2) < min
}

func HTTPGet(url string, requestOptions *grequests.RequestOptions) (response []byte, err error) {
httpResponse, err := grequests.Get(url, requestOptions)
if err == nil {
if httpResponse.StatusCode == 200 {
response = httpResponse.Bytes()
}
}
return
}

// XmrBlocksChainCheck 根据提币的数量，提币方地址以及目标方地址来检查提币是否已经confirmed.
// 返回值有两个：提币状态以及已收到的提币数量（扣除手续费）
func XrpBlocksChainCheck(withdrawAmount float64, originalAddress string, targetAddress string) (status string, netWithdrawAmount float64, confirmations int64, err error) {
url := fmt.Sprintf("http://api.etherscan.io/api?module=account&action=txlist&address=%s&startblock=0&endblock=99999999", targetAddress)
bData, err := HTTPGet(url, nil)
if err != nil {
return
}
transactions, _, _, err := jsonparser.Get(bData, "result")
_, err = jsonparser.ArrayEach(transactions, func(value []byte, dataType jsonparser.ValueType, offset int, e error) {
_from, _, _, e := jsonparser.Get(value, "from")
_to, _, _, e := jsonparser.Get(value, "to")
_value, _, _, e := jsonparser.Get(value, "value")
_txreceiptStatus, _, _, e := jsonparser.Get(value, "txreceipt_status")
_gasPrice, _, _, e := jsonparser.Get(value, "gasPrice")
_gasUsed, _, _, e := jsonparser.Get(value, "gasUsed")
_confirmations, _, _, e := jsonparser.Get(value, "confirmations")

sf := strings.ToLower(string(_from))
st := strings.ToLower(string(_to))
sv := strings.ToLower(string(_value))
iv, _ := strconv.ParseFloat(sv, 64)
sts := string(_txreceiptStatus)
sgp := string(_gasPrice)
igp, _ := strconv.ParseFloat(sgp, 64)
sgu := string(_gasUsed)
igu, _ := strconv.ParseFloat(sgu, 64)
sc := string(_confirmations)

if sf == strings.ToLower(originalAddress) && st == strings.ToLower(targetAddress) && isEqual(iv, withdrawAmount) {
// fmt.Println(sf, st, sv, iv, sgp, igp, sgu, igu, sc)

// 已完成的提币数量，未扣除提币的手续费
fmt.Println("gas:", igp*igu)
// 已收到币的实际数量，扣除了提币的手续费
fmt.Println("net_receive_amount:", iv)
if sts == "" || sts == "1" {
status = "confirmed"
} else {
status = "online"
}
netWithdrawAmount = iv
confirmations, _ = strconv.ParseInt(sc, 10, 64)
} else {
e = errors.New("this is a new error")
}
})
return
}