3f0053f884
- checkIfTxFailed & waitForBlockConfirmations are both general-purpose - checkIfVerified, checkIfRequested & postToServer are sms verification-specific
45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
// Copyright 2015, 2016 Ethcore (UK) Ltd.
|
|
// This file is part of Parity.
|
|
|
|
// Parity is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// Parity is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
const isValidReceipt = (receipt) => {
|
|
return receipt && receipt.blockNumber && receipt.blockNumber.gt(0);
|
|
};
|
|
|
|
const waitForConfirmations = (api, tx, confirmations) => {
|
|
return new Promise((resolve, reject) => {
|
|
api.pollMethod('eth_getTransactionReceipt', tx, isValidReceipt)
|
|
.then((receipt) => {
|
|
let subscription;
|
|
api.subscribe('eth_blockNumber', (err, block) => {
|
|
if (err) {
|
|
reject(err);
|
|
} else if (block.minus(confirmations - 1).gte(receipt.blockNumber)) {
|
|
if (subscription) {
|
|
api.unsubscribe(subscription);
|
|
}
|
|
resolve();
|
|
}
|
|
})
|
|
.then((_subscription) => {
|
|
subscription = _subscription;
|
|
})
|
|
.catch(reject);
|
|
});
|
|
});
|
|
};
|
|
|
|
export default waitForConfirmations;
|