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57 lines
1.4 KiB
57 lines
1.4 KiB
const ObservableStore = require('obs-store')
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const extend = require('xtend')
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const recentBlacklist = require('etheraddresslookup/blacklists/domains.json')
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// every ten minutes
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const POLLING_INTERVAL = 300000
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class InfuraController {
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constructor (opts = {}) {
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const initState = extend({
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infuraNetworkStatus: {},
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blacklist: recentBlacklist,
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}, opts.initState)
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this.store = new ObservableStore(initState)
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}
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//
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// PUBLIC METHODS
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//
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// Responsible for retrieving the status of Infura's nodes. Can return either
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// ok, degraded, or down.
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checkInfuraNetworkStatus () {
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return fetch('https://api.infura.io/v1/status/metamask')
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.then(response => response.json())
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.then((parsedResponse) => {
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this.store.updateState({
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infuraNetworkStatus: parsedResponse,
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})
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return parsedResponse
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})
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}
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updateLocalBlacklist () {
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return fetch('https://api.infura.io/v1/blacklist')
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.then(response => response.json())
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.then((parsedResponse) => {
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this.store.updateState({
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blacklist: parsedResponse,
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})
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return parsedResponse
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})
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}
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scheduleInfuraNetworkCheck () {
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if (this.conversionInterval) {
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clearInterval(this.conversionInterval)
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}
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this.conversionInterval = setInterval(() => {
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this.checkInfuraNetworkStatus()
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this.updateLocalBlacklist()
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}, POLLING_INTERVAL)
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}
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}
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module.exports = InfuraController
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