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REF: estimates

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Overtorment 2019-07-19 01:22:26 +01:00
parent 1ab763ffeb
commit b0dd59f269
3 changed files with 25 additions and 0 deletions
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20
BlueElectrum.js
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@ -3,6 +3,7 @@ import { AppStorage } from './class';
const ElectrumClient = require('electrum-client'); const ElectrumClient = require('electrum-client');
let bitcoin = require('bitcoinjs-lib'); let bitcoin = require('bitcoinjs-lib');
let reverse = require('buffer-reverse'); let reverse = require('buffer-reverse');
let BigNumber = require('bignumber.js');
const storageKey = 'ELECTRUM_PEERS'; const storageKey = 'ELECTRUM_PEERS';
const defaultPeer = { host: 'electrum1.bluewallet.io', tcp: '50001' }; const defaultPeer = { host: 'electrum1.bluewallet.io', tcp: '50001' };
@ -351,6 +352,25 @@ module.exports.estimateFees = async function() {
return { fast, medium, slow }; return { fast, medium, slow };
}; };
/**
* Returns the estimated transaction fee to be confirmed within a certain number of blocks
*
* @param numberOfBlocks {number} The number of blocks to target for confirmation
* @returns {Promise<number>} Satoshis per byte
*/
module.exports.estimateFee = async function(numberOfBlocks) {
if (!mainClient) throw new Error('Electrum client is not connected');
numberOfBlocks = numberOfBlocks || 1;
let coinUnitsPerKilobyte = await mainClient.blockchainEstimatefee(numberOfBlocks);
if (coinUnitsPerKilobyte === -1) return 1;
return Math.round(
new BigNumber(coinUnitsPerKilobyte)
.dividedBy(1024)
.multipliedBy(100000000)
.toNumber(),
);
};
module.exports.broadcast = async function(hex) { module.exports.broadcast = async function(hex) {
if (!mainClient) throw new Error('Electrum client is not connected'); if (!mainClient) throw new Error('Electrum client is not connected');
try { try {

1
screen/send/details.js
View file

@ -143,6 +143,7 @@ export default class SendDetails extends Component {
}; };
async componentDidMount() { async componentDidMount() {
console.log('send/details - componentDidMount');
StatusBar.setBarStyle('dark-content'); StatusBar.setBarStyle('dark-content');
this.keyboardDidShowListener = Keyboard.addListener('keyboardDidShow', this._keyboardDidShow); this.keyboardDidShowListener = Keyboard.addListener('keyboardDidShow', this._keyboardDidShow);
this.keyboardDidHideListener = Keyboard.addListener('keyboardDidHide', this._keyboardDidHide); this.keyboardDidHideListener = Keyboard.addListener('keyboardDidHide', this._keyboardDidHide);

4
tests/integration/Electrum.test.js
View file

@ -27,6 +27,10 @@ describe('Electrum', () => {
assert.ok(await BlueElectrum.testConnection('electrum1.bluewallet.io', '50001')); assert.ok(await BlueElectrum.testConnection('electrum1.bluewallet.io', '50001'));
}); });
it('ElectrumClient can estimate fees', async () => {
assert.ok((await BlueElectrum.estimateFee(1)) > 1);
});
it('ElectrumClient can connect and query', async () => { it('ElectrumClient can connect and query', async () => {
const ElectrumClient = require('electrum-client'); const ElectrumClient = require('electrum-client');