Mule http request configuration proxy - web-services

Question

I'm following a tutorial from mulesoft (DataWeave Tutorial) witch implements a Web Service Consumer that calls an external public web service (WSDL). I had no problem to setup the project as described, but when I launch my server I have the following error: "Caused by: java.net.ConnectException: Connection refused: connect".
First thought was that the webservice was unavailable. But I tested it in SoapUI and it workded just fine.
I suppose the error is because the call to the web service is not using the proxy configurations that I have set up in Anypoint Studio. So, in my Web Service Consumer I have set up a HTTP Request Configuration where I added a Proxy Configuration. But it also did not work. Those were my steps:
Web Service Consumer
https://i.stack.imgur.com/hN584.png
References tab
https://i.stack.imgur.com/NIV84.png
HTTP Request Configuration
https://i.stack.imgur.com/Ubpwa.png
Proxy tab
https://i.stack.imgur.com/bBYx1.png
Proxy Configuration
https://i.stack.imgur.com/JDQdf.png
One thing that is immediately noticeable is the the TLS error on the HTTP Request Configuration. This error appears as soon as I choose to use a proxy and when I go to the TLS/SSL tab I have no option to remove the TLS configuration as you can see in the following image:
TLS/SSL tab
https://i.stack.imgur.com/xFqEW.png
Here's the XML of my flow:
<flow name="dataweave_tutorialFlow">
<http:listener config-ref="HTTP_Listener_Configuration" path="ex1" doc:name="HTTP" metadata:id="b34a6c34-653f-4b68-8aa3-8292e41a20cf"/>
<dw:transform-message doc:name="Transform Message">
<dw:input-payload doc:sample="C:\temp\dw_example1.json"/>
<dw:set-payload><![CDATA[%dw 1.0
%output application/xml
%namespace ns0 http://mulesoft.org/tshirt-service
---
{
ns0#OrderTshirt: {
size: "M" unless payload.buyer.state == "TX" otherwise "XXL",
email: payload.buyer.email,
name: payload.buyer.name,
address1: payload.buyer.address,
address2: null,
city: payload.buyer.city,
stateOrProvince: payload.buyer.state,
postalCode: payload.buyer.postCode,
country: payload.buyer.nationality
}
}]]></dw:set-payload>
</dw:transform-message>
<ws:consumer config-ref="Web_Service_Tshirt" operation="OrderTshirt" doc:name="Web Service Consumer"/>
</flow>
I'm using Anypoint Studio 6.2.5 with Mule ESB Server 3.8.2.
I have no more ideas for what to change to make this work. Hope anyone has some good suggestion about this. Thanks in advance!

Answer 1

You dont require to mention http in proxy url host can set the proxy using following example:-
<http:request-config name="HTTP_Request_Configuration" host="www.webservicex.com" port="80" doc:name="HTTP Request Configuration">
<http:proxy host="my.example.proxy.com" port="8080"/>
</http:request-config>
You may need to provide your proxy username and password based on your proxy.
A best example is if you follow step by step written here :-
http://www.corralict.nl/wsc-connector-proxy/
and
https://docs.mulesoft.com/mule-user-guide/v/3.8/web-service-consumer
Regarding tls, don't touch the tls part and make sure your HTTP request protocol is set to HTTP and not HTTPS. The error you are seeing is a bug in studio and will not affect if you configure rightly.