add support for live call control

lib/utils/install-srf-locals.js

@@ -0,0 +1,31 @@
+const config = require('config');
+const ip = require('ip');
+const localIp = ip.address();
+const PORT = process.env.HTTP_PORT || config.get('defaultHttpPort');
+
+function installSrfLocals(srf, logger) {
+  if (srf.locals.dbHelpers) return;
+
+  const {lookupAppByPhoneNumber} = require('jambonz-db-helpers')(config.get('mysql'), logger);
+  const {
+    updateCallStatus,
+    retrieveCall,
+    listCalls,
+    deleteCall
+  } = require('jambonz-realtimedb-helpers')(config.get('redis'), logger);
+
+  Object.assign(srf.locals, {
+    dbHelpers: {
+      lookupAppByPhoneNumber,
+      updateCallStatus,
+      retrieveCall,
+      listCalls,
+      deleteCall
+    },
+    parentLogger: logger,
+    ipv4: localIp,
+    serviceUrl: `http://${localIp}:${PORT}`
+  });
+}
+
+module.exports = installSrfLocals;