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transaction.go

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/*

* Copyright (c) 2018 LI Zhennan

*

* Use of this work is governed by a MIT License.

* You may find a license copy in project root.

*/

package etherscan

import "errors"

// ErrPreByzantiumTx transaction before 4,370,000 does not support receipt status check

var ErrPreByzantiumTx = errors.New("pre-byzantium transaction does not support receipt status check")

// ExecutionStatus checks contract execution status (if there was an error during contract execution)

//

// note on IsError: 0 = pass, 1 = error

func (c *Client) ExecutionStatus(txHash string) (status ExecutionStatus, err error) {

param := M{

"txhash": txHash,

}

err = c.call("transaction", "getstatus", param, &status)

return

}

// ReceiptStatus checks transaction receipt status

//

// only applicable for post byzantium fork transactions, i.e. after block 4,370,000

//

// An special err ErrPreByzantiumTx raises for the transaction before byzantium fork.

//

// Note: receiptStatus: 0 = Fail, 1 = Pass.

func (c *Client) ReceiptStatus(txHash string) (receiptStatus int, err error) {

param := M{

"txhash": txHash,

}

var rawStatus = struct {

Status string `json:"status"`

}{}

err = c.call("transaction", "gettxreceiptstatus", param, &rawStatus)

if err != nil {

return

}

switch rawStatus.Status {

case "0":

receiptStatus = 0

case "1":

receiptStatus = 1

default:

receiptStatus = -1

err = ErrPreByzantiumTx

}

return

}