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index.js
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index.js
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const Koa = require('koa')
const Router = require('@koa/router')
const bodyParser = require('koa-bodyparser')
const Next = require('next')
const http = require('http')
const proofsRouter = require('./routers/proofs')
const epochsRouter = require('./routers/epochs')
const towerRouter = require('./routers/tower')
const nodeProxy = require('./routers/nodeProxy')
const webmonitorProxy = require('./routers/webMonitor')
const { Server } = require("socket.io")
const { getCurrentConsensusRound } = require('./lib/api/validator')
const { NODE_ENV, PORT: ENV_PORT } = process.env
const PORT = ENV_PORT || 3027
const app = new Koa()
app.use(bodyParser())
const next = Next({ dev: NODE_ENV != 'production' })
const handler = next.getRequestHandler()
next.prepare()
const router = new Router()
router.get('/health', async (ctx) => {
ctx.body = 'OK'
})
router.get('/(.*)', async (ctx) => {
await handler(ctx.req, ctx.res)
ctx.respond = false
})
app.use(nodeProxy.routes())
app.use(webmonitorProxy.routes())
app.use(epochsRouter.routes())
app.use(proofsRouter.routes())
app.use(towerRouter.routes())
app.use(router.routes())
app.on('error', (error) => {
console.error('App error', error)
})
const httpServer = http.createServer(app.callback())
const io = new Server(httpServer)
const EventSource = require('eventsource')
const { WEB_MONITOR_HOSTNAME } = process.env
const startVitals = async () => {
const uri = `http://${WEB_MONITOR_HOSTNAME}:3030/vitals`
try {
const sse = new EventSource(uri)
sse.onmessage = async (msg) => {
global.consensusRound = await getCurrentConsensusRound()
global.vitalsCache = JSON.parse(msg.data)
io.emit('vitals', {
consensusRound: global.consensusRound,
vitals: global.vitalsCache,
})
}
sse.onerror = (err) => {
console.error(`Event source error: ${err}`)
sse.close()
setTimeout(startVitals, 10000)
}
} catch (err) {
setTimeout(startVitals, 10000)
}
}
startVitals()
global.getVitals = () => global.vitalsCache || {
chain_view: {
epoch: 0,
height: 0,
validator_count: 0,
latest_epoch_change_time: 0,
waypoint: '',
//@ts-ignore
upgrade: {},
epoch_progress: 0,
total_supply: 0,
validator_view: [],
},
}
io.on('connection', (socket) => {
console.log('a user connected')
})
httpServer.listen(PORT)
console.log('Listening on port', PORT)