fix error with createCall api

app.js

@@ -29,7 +29,11 @@ const {
 // HTTP
 const express = require('express');
 const app = express();
-app.locals.logger = logger;
+Object.assign(app.locals, {
+  logger,
+  srf
+});
+
 const httpRoutes = require('./lib/http-routes');
 
 const InboundCallSession = require('./lib/session/inbound-call-session');

lib/http-routes/api/create-call.js

@@ -7,24 +7,13 @@ const SipError = require('drachtio-srf').SipError;
 const sysError = require('./error');
 const Requestor = require('../../utils/requestor');
 
-/**
- * Retrieve a connection to a drachtio server, lazily creating when first called
- */
-function getSrfForOutdial(logger) {
-  const {srf} = require('../../../');
-  const {getSrf} = srf.locals;
-  const srfForOutdial = getSrf();
-  if (!srfForOutdial) throw new Error('no available feature servers for outbound call creation');
-  return srfForOutdial;
-}
-
 router.post('/', async(req, res) => {
-  const logger = req.app.locals.logger;
+  const {logger, srf} = req.app.locals;
+
   logger.debug({body: req.body}, 'got createCall request');
   try {
     let uri, cs, to;
     const restDial = makeTask(logger, {'rest:dial': req.body});
-    const srf = getSrfForOutdial(logger);
     const {getSBC, getFreeswitch} = srf.locals;
     const sbcAddress = getSBC();
     if (!sbcAddress) throw new Error('no available SBCs for outbound call creation');