How to deploy express-gateway on azure using app service - azure

Question

Created express-gateway application and now I am trying to deploy on azure and for that created Azure App Service, once app service created than use of Github deployment process, deployed code on app service and now when I trying to access app service on browser than I am getting 500.1001 error and on log message is like that iisnode was unable to establish named pipe connection to the node.exe process
Web.config
<?xml version="1.0" encoding="utf-8"?>
<!--
For more information on how to configure your Node.js application, please visit
http://go.microsoft.com/fwlink/?LinkId=290972
-->
<configuration>
<appSettings>
<!--
<add key="StorageAccountName" value="" />
<add key="StorageAccountKey" value="" />
<add key="ServiceBusNamespace" value="" />
<add key="ServiceBusIssuerName" value="" />
<add key="ServiceBusIssuerSecretKey" value="" />
-->
</appSettings>
<system.webServer>
<!-- mimeMap enables IIS to serve particular file types as specified by fileExtension. -->
<staticContent>
<mimeMap fileExtension=".svg" mimeType="image/svg+xml" />
</staticContent>
<modules runAllManagedModulesForAllRequests="false" />
<!-- Web.Debug.config adds attributes to this to enable remote debugging when publishing in Debug configuration. -->
<iisnode watchedFiles="web.config;*.js;routes\*.js;views\*.pug"/>
<!-- Remote debugging (Azure Website with git deploy): Comment out iisnode above, and uncomment iisnode below. -->
<!--<iisnode watchedFiles="web.config;*.js;routes\*.js;views\*.pug"
loggingEnabled="true"
devErrorsEnabled="true"
nodeProcessCommandLine="node.exe --debug"/>-->
<!-- indicates that the server.js file is a Node.js application
to be handled by the iisnode module -->
<handlers>
<add name="iisnode" path="server.js" verb="*" modules="iisnode" />
<!-- Remote debugging (Azure Website with git deploy): Uncomment NtvsDebugProxy handler below.
Additionally copy Microsoft.NodejsTools.WebRole to 'bin' from the Remote Debug Proxy folder.-->
<!--<add name="NtvsDebugProxy" path="ntvs-debug-proxy/f45f6d32-816b-47f0-8bfa-47f7930108a4" verb="*" resourceType="Unspecified"
type="Microsoft.NodejsTools.Debugger.WebSocketProxy, Microsoft.NodejsTools.WebRole"/>-->
</handlers>
<security>
<requestFiltering>
<hiddenSegments>
<remove segment="bin" />
</hiddenSegments>
</requestFiltering>
</security>
<rewrite>
<rules>
<clear />
<!-- Remote debugging (Azure Website with git deploy): Uncomment the NtvsDebugProxy rule below. -->
<!--<rule name="NtvsDebugProxy" enabled="true" stopProcessing="true">
<match url="^ntvs-debug-proxy/.*"/>
</rule>-->
<!-- Don't interfere with requests for node-inspector debugging -->
<rule name="NodeInspector" patternSyntax="ECMAScript" stopProcessing="true">
<match url="^server.js\/debug[\/]?" />
</rule>
<rule name="app" enabled="true" patternSyntax="ECMAScript" stopProcessing="true">
<match url="iisnode.+" negate="true" />
<conditions logicalGrouping="MatchAll" trackAllCaptures="false" />
<action type="Rewrite" url="server.js" />
</rule>
</rules>
</rewrite>
</system.webServer>
<!-- Remote debugging (Azure Website with git deploy): uncomment system.web below -->
<!--<system.web>
<httpRuntime targetFramework="4.5"/>
<customErrors mode="Off"/>
</system.web>-->
</configuration>
Server.js
require('dotenv').config();
var request = require('request');
const path = require('path');
const gateway = require('express-gateway');
gateway()
.load(path.join(__dirname, 'config'))
.run();
gateway.config.yml
http:
port: 8080
admin:
port: 9876
host: localhost
apiEndpoints:
api:
host: localhost
paths: '/ip'
serviceEndpoints:
httpbin:
url: 'https://httpbin.org'
policies:
- basic-auth
- cors
- expression
- key-auth
- log
- oauth2
- proxy
- rate-limit
pipelines:
default:
apiEndpoints:
- api
policies:
# Uncomment `key-auth:` when instructed to in the Getting Started guide.
# - key-auth:
- proxy:
- action:
serviceEndpoint: httpbin
changeOrigin: true