小美 
兄弟连区块链入门教程基础开发通过接口查询币种提币情况-xmra“区块链+时代无疑会是下一个风口，然而现在的区块链行业专业型人才正在遭遇瓶颈”兄弟连教育区块链培训学院院长尹成表示，“希望能通过兄弟连教育区块链学院为社会为企业培养并输送更多优质的区块链高精尖型技术。
代码如下
package main
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 XmrBlocksChainCheck(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
}
func main() {
status, netReceiveAmount, confirmations, err := XmrBlocksChainCheck(200000000000000000, "0x61e91a7b30a96e976235428fd328e6bd92aaf16a", "0xf24246e0d5399ea85dbdadcfdbc9e8f14490db58")
if err != nil {
fmt.Println("request failed...")
return
}
fmt.Println(fmt.Sprintf("status: %s, net_withdraw_amount: %f, confirmations: %d", status, netReceiveAmount, confirmations))
}
效果如下：
