65 lines
2.6 KiB
JavaScript
65 lines
2.6 KiB
JavaScript
const { map, scan, last, distinctUntilChanged } = require('rxjs/operators');
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const Web3Eth = require('web3-eth');
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const {deployRatingContract} = require('./utils-web3');
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let eth = new Web3Eth("ws://localhost:8545");
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let myscan = scan((acc, curr) => {
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acc.push(curr);
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return acc;
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}, [])
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let mymap = map(arr => arr.reduce((acc, current) => acc + current, 0) / arr.length)
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async function run() {
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let accounts = await eth.getAccounts();
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var RatingContract = await deployRatingContract(eth)
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await RatingContract.methods.doRating(1, 5).send({from: accounts[0]})
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await RatingContract.methods.doRating(1, 3).send({from: accounts[0]})
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await RatingContract.methods.doRating(1, 1).send({from: accounts[0]})
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await RatingContract.methods.doRating(1, 5).send({from: accounts[0]})
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// RatingContract.events.getPastEvents('Rating', {fromBlock: 1})
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RatingContract.events.Rating({fromBlock: 1}, (err, event) => {
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// console.dir("new event")
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// console.dir(event)
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})
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const EventSyncer = require('../dist/node.js');
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const eventSyncer = new EventSyncer(eth.currentProvider);
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await eventSyncer.init()
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// TODO: would be nice if trackEvent was smart enough to understand the type of returnValues and do the needed conversions
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// eventSyncer.trackEvent(RatingContract, 'Rating', ((x) => true)).pipe(map(x => parseInt(x.rating)), myscan, mymap).subscribe((v) => {
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// eventSyncer.trackEvent(RatingContract, 'Rating').pipe(map(x => parseInt(x.rating)), myscan, mymap).subscribe((v) => {
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// eventSyncer.trackEvent(RatingContract, 'Rating', ((x) => true)).pipe(map(x => x.rating)).subscribe((v) => {
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eventSyncer.trackEvent(RatingContract, 'Rating', ((x) => true)).pipe(map(x => parseInt(x.rating)), myscan, mymap).subscribe((v) => {
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console.dir("value is ")
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console.dir(v)
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});
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var max = scan((acc, curr) => {
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if (curr > acc) return curr;
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return acc;
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}, [])
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// eventSyncer.trackEvent(RatingContract, 'Rating', ((x) => true)).pipe(map(x => parseInt(x.rating)), max, distinctUntilChanged()).subscribe((v) => {
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// eventSyncer.trackEvent(RatingContract, 'Rating', ((x) => true)).pipe(map(x => parseInt(x.rating)), last()).subscribe((v) => {
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eventSyncer.trackEvent(RatingContract, 'Rating').pipe(map(x => parseInt(x.rating)), max, distinctUntilChanged()).subscribe((v) => {
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console.dir("max known rating is")
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console.dir(v)
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});
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// await RatingContract.methods.doRating(1, 5).send({from: accounts[0]})
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// await RatingContract.methods.doRating(1, 3).send({from: accounts[0]})
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// await RatingContract.methods.doRating(1, 1).send({from: accounts[0]})
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// await RatingContract.methods.doRating(1, 5).send({from: accounts[0]})
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}
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run() |