Brother even the blockchain starter to master tutorial Basic development through the interface query XRP coin situation

Package Mainimport ("Errors" "FMT" "Math" "StrConv" "Strings" "Github.com/buger/jsonparser" "github.com/levigross/ Grequests ") Const MIN = 0.000000000001func isequal (f1, F2 float64) bool {if F1 < F2 {return isequal (F2, F1)} return M Ath. 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 = = $ {response = Httpresponse.bytes ()}} return}// Xmrblockschaincheck according to the number of coins, the address of the coin and the destination address to check whether the coin has been confirmed.//return value of two: the status of the coin and the number of coins received (minus the handling fee) 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, +) sts: = String (_txreceiptstatus) SGP: = String (_gasprice) IGP, _: = StrConv. Parsefloat (SGP) SGU: = String (_gasused) Igu, _: = StrConv. Parsefloat (SGU) 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)//The number of coins completed, without deduction of the fee for the withdrawal of the currency FMT. Println ("Gas:", Igp*igu)//The actual number of coins received, minus the handling fee of the NZD FMT. Println ("Net_receive_amount:", iv) if STS = = "" | | STS = = "1" {status = "confirmed"} else {status = "online"} Netwithdrawamount = IV confirmations, _ = StrConv. parseint (SC, ten, Max)} else {e = errors. New ("This is a new error")}) Return}func Main () {status, Netreceiveamount, confirmations, err: = Xrpblockschaincheck (5 3000000000000000, "0x8a62f1bad85d968c218abf0f44156a48f4b5512c", "0xf24246e0d5399ea85dbdadcfdbc9e8f14490db58") if Err! = Nil {fmt. PRINTLN ("Request failed ...") return} FMT. Println (FMT. Sprintf ("Status:%s, Net_withdraw_amount:%f, confirmations:%d", status, Netreceiveamount, confirmations)}

The effect is as follows:

Brother even the blockchain starter to master tutorial Basic development through the interface query XRP coin situation