address.py 文件源码

def leaseCancel(self, leaseId, txFee=pywaves.DEFAULT_LEASE_FEE, timestamp=0):
        if not self.privateKey:
            logging.error('Private key required')
        elif not pywaves.OFFLINE and self.balance() < txFee:
            logging.error('Insufficient Waves balance')
        else:
            if timestamp == 0:
                timestamp = int(time.time() * 1000)
            sData = b'\x09' + \
                    base58.b58decode(self.publicKey) + \
                    struct.pack(">Q", txFee) + \
                    struct.pack(">Q", timestamp) + \
                    base58.b58decode(leaseId)
            signature = crypto.sign(self.privateKey, sData)
            data = json.dumps({
                "senderPublicKey": self.publicKey,
                "txId": leaseId,
                "fee": txFee,
                "timestamp": timestamp,
                "signature": signature
            })
            req = pywaves.wrapper('/leasing/broadcast/cancel', data)
            if pywaves.OFFLINE:
                return req
            elif 'leaseId' in req:
                return req['leaseId']