kredits/hubot-kredits
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Use new ethers.js NonceManager to handle transaction nonces

Browse Source 
So far we have failed to globally handle the transaction nonces.
The new ethers.js v5 comes with a NonceManager that helps us handling
transaction nonces and automatically increases the nonce for each
transaction.
This commit is contained in:
bumi 2020-06-27 18:24:44 +02:00
parent 35f6acc150
commit b7ff55929c
4 changed files with 522 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
index.js
View File

@ -2,6 +2,7 @@ const fs = require('fs');
const util = require('util');
const fetch = require('node-fetch');
const ethers = require('ethers');
const NonceManager = require('@ethersproject/experimental').NonceManager;
const Kredits = require('kredits-contracts');
const walletPath = process.env.KREDITS_WALLET_PATH || './wallet.json';
@ -43,7 +44,7 @@ module.exports = async function(robot) {
} else {
ethProvider = new ethers.getDefaultProvider('rinkeby');
}
const signer = wallet.connect(ethProvider);
const signer = new NonceManager(wallet.connect(ethProvider));
//
// Kredits contracts setup

10
integrations/zoom.js
View File

@ -1,5 +1,9 @@
const fetch = require('node-fetch');
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
module.exports = async function(robot, kredits) {
function messageRoom(message) {
@ -13,9 +17,6 @@ module.exports = async function(robot, kredits) {
const zoomAccessToken = process.env.KREDITS_ZOOM_JWT;
const walletTransactionCount = await kredits.provider.getTransactionCount(kredits.signer.address);
let nonce = walletTransactionCount;
async function createContributionFor (displayName, meeting) {
const contributor = await getContributorByZoomDisplayName(displayName);
@ -35,7 +36,7 @@ module.exports = async function(robot, kredits) {
time: meeting.end_time.split('T')[1]
}
return Contribution.add(contribution, { nonce: nonce++ })
return Contribution.add(contribution)
.then(tx => {
robot.logger.info(`[hubot-kredits] Contribution created: ${tx.hash}`);
})
@ -78,6 +79,7 @@ module.exports = async function(robot, kredits) {
for (const displayName of names) {
await createContributionFor(displayName, meetingDetails);
await sleep(60000); // potentially to prevent too many transactions at the sametime. transactions need to be ordered because of the nonce. not sure though if this is needed.
};
}

543
package-lock.json generated
View File

@ -4,6 +4,423 @@
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3
package.json
View File

@ -12,7 +12,8 @@
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