update 'liquidations' example

Author: Vitaliy Stoliarov

examples/ws2/liquidations.js

@@ -1,17 +1,24 @@
 'use strict'
 
 const { Liquidations } = require('bfx-api-node-models')
-const runExample = require('../util/run_example')
+const { args: { apiKey, apiSecret }, debug } = require('../util/setup')
+const WSv2 = require('../../lib/transports/ws2')
+
+async function execute () {
+  const ws = new WSv2({
+    apiKey,
+    apiSecret
+  })
+  ws.on('error', e => debug('WSv2 error: %s', e.message | e))
+  await ws.open()
 
-module.exports = runExample({
-  name: 'ws2-liquidations',
-  ws: { env: true, connect: true, keepOpen: true }
-}, async ({ ws, debug }) => {
   ws.onStatus({ key: 'liq:global' }, (data) => {
     data.forEach(liq => (
       debug('liquidation: %s', new Liquidations(liq).toString())
     ))
   })
 
   await ws.subscribeStatus('liq:global')
-})
+}
+
+execute()