import { get } from 'svelte/store'; import { rate, user, token, invoicePaid, preferredCurrency } from '$lib/store'; let interval, socket; export const auth = () => { let t = get(token); if (t) send('login', t); }; export const send = (type, data) => { socket?.readyState === 1 && socket.send(JSON.stringify({ type, data })); }; export const messages = (data) => ({ rate() { rate.set(data); }, payment() { invoicePaid.set(true); }, connected: auth, login() { user.set(data); preferredCurrency.set(data.currency); } }); const initialReconnectDelay = 1000; const maxReconnectDelay = 16000; let currentReconnectDelay = initialReconnectDelay; export function connect() { clearInterval(interval); if (socket) return auth(); socket = new WebSocket('ws://localhost:3119/ws'); socket.addEventListener('open', onWebsocketOpen); socket.addEventListener('close', onWebsocketClose); socket.addEventListener('message', onWebsocketMessage); interval = setInterval(() => send('heartbeat'), 5000); } export function close() { if (socket) socket.close(); } function onWebsocketMessage(msg) { let { type, data } = JSON.parse(msg.data); messages(data)[type] && messages(data)[type](); } function onWebsocketOpen() { currentReconnectDelay = initialReconnectDelay; } function onWebsocketClose() { socket = null; setTimeout(() => { reconnectToWebsocket(); }, currentReconnectDelay + Math.floor(Math.random() * 3000)); } function reconnectToWebsocket() { if (currentReconnectDelay < maxReconnectDelay) { currentReconnectDelay *= 2; } connect(); } >no-challenge coinos server — legacy coinos.io backend (Lightning, on-chain, Liquid)coinos
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