In WSO2 ESB what does the property mediator with name RESPONSE and value true will do:
<property name="RESPONSE" scope="default" value="true"/>
And what is sequential mediation,payload preserve,continue parent means in iterator mediator
Once RESPONSE property is set to 'true' on a message, the ESB will start treating it as a response message. It is generally used to route a request message back to its source as the response.If you configure a send mediator after a RESPONSE property ESB will respond to the client back (same as respond mediator). Instead of respond property and send mediator you can replace those with respond mediator.
Related
I need to make proxy service in wso2 esb, that would be redirect requests to external wsdl service with pre send auth request to separate operation.
I make sequence like this:
clone
payloadFactory (auth xml request)
call (auth operation)
property (value=get-property('transport', 'Set-Cookie'), name=ExtCookie scope=operation)
property (value=get-property('operation', 'ExtCookie') name=Cookie)
Send (target operation)
When I make first call to this proxy service - It's work fine. But on second call I see in tcpdump that there is Cookie HTTP Header in the clone request.
I try add "property remove" with different scope(transport, operation, Synapse, default, axis2, axis2-client), but no one work. Cookie-Header wasn't removed. I need remove it for correct work with ext service.
Try with the following properties.
<property name="EXCESS_TRANSPORT_HEADERS" scope="axis2" action="remove"/>
<property name="Set-Cookie" scope="transport" action="remove"/>
I create simple api with URI-template
/my_context/{param1}?b={param2}
I created simple sequence for sending email message to endpoint with address
mailto:user#gmail.com
I opened link
/api/my_context/123?b=222
And found in log messages:
Send TO: user#gmail.com/my_context/123?b=222
Incorrect Address.
Why WSO2 ESB append uri to email address?
Removing REST_URL_POSTFIX property like this will change that behavior.
<property name="REST_URL_POSTFIX" action="remove" scope="axis2"/>
I am newbie to WSO2 ESB, so far everything is OK.
I started exploring fire and forgot feature, looks like this can be used as below to invoke async calls to end points.
<property name="CHANNEL_COD" value="999"/>
<property name="FORCE_SC_ACCEPTED" value="true" scope="axis2"/>
<property name="OUT_ONLY" value="true"/>
But when tested the API with above code, still ESB invoking the end point in syncronous. Tried this approach with call and send mediators.
Would anybody please help me is there any link I am missing here.
With ESB 4.8.1 :
If ClientApiNonBlocking property is not set, send mediator should be asynchronous.
Because of FORCE_SC_ACCEPTED, 202 http status code will be sended back at the end of IN mediation (ie : the message has been delivered to your endpoint, without waiting for the response)
If it takes several seconds to send the message to the endpoint, the caller will receive 202 status code AFTER that.
If you want this status code to be sent ASAP, you can use clone mediator and move send mediator inside clone's target
I've a SOAP web services hosted in a Weblogic Server that uses Web service addressing (WS-A). I'm trying to publish it using WSO2 API Manager.
The original request has a complete SOAP header including an Action and MessageID:
<soapenv:Header xmlns:wsa="http://www.w3.org/2005/08/addressing">
<wsa:Action>urn:es:cetelem:ws:venta:promociones:services:promocionesService:promocionesService_v03:PromocionesServicePortType:obtenerPromocionesOperacionVndRequest</wsa:Action>
<wsa:MessageID>uuid:969e636c-067f-4bed-a38a-65f0f81c295d</wsa:MessageID>
</soapenv:Header>
But the wso2-am removes the fields Action and MessageID from the SOAP Header before sending to the final endpoint in the Werblogic server. This is an example of the wrong hearder sent by wso2-am
<soapenv:Header xmlns:wsa="http://www.w3.org/2005/08/addressing"/>
How can I configure wso2-am to keep the SOAP Header sent by the client.
I found a solution. I added a new sequence mediation extension in [CARBON-HOME]/repository/deployment/server/synapse-configs/default/sequences to preserve original WS-A headers. The new extension set to true the PRESERVE_WS_ADDRESSING property.
Visit https://docs.wso2.com/display/ESB460/Generic+Properties .
The code of the new mediator is:
<sequence xmlns="http://ws.apache.org/ns/synapse" name="WSO2AM--Ext--In">
<property name="PRESERVE_WS_ADDRESSING" value="true" scope="default" type="STRING"/>
</sequence>
I am using WSO2 ESB 4.0.3 with Java 6 on MAC OSX 10.7.4. I have also installed Data Services Features.
In the typical scenario I have one proxy service which the client calls and I pass one the request to Data Service. Now if I have FAULT message from the Data service back to proxy how do I check in proxy service whether the response from Data Service is Fault or normal valid response?
Currently I am using following filter mediator logic in outsequence of proxy service
<filter xpath="get-property('FAULT')">
<then>
<log category="ERROR" level="custom" separator=",">
<property name="OWCHECK-faultMessage" value="TQS_OWCHECK - Received Fault From OWCHECK Data Service !!!!"/>
<property expression="$body" name="Fault-I-Got-Is"/>
<property name="OWCHECK-Forwading-Error" value="TQS_OWCHECK - Forwarding the Fault to Error Handler !!!!"/>
</log>
<else>
<xslt key="conf:/tqs/owcheck/proxy-output-transform.xslt"/>
<log category="INFO" level="custom" separator=",">
<property name="ValidResponse" value="TQS_OWCHECK - Sending Valid Response Back."/>
</log>
<send/>
</else>
</filter>
But this logic of checking the "FAULT" property works when axis2 has NIO senders & receivers in axis2.xml.
How ever if I switch the receivers & senders in axis2.xml from NIO to standard servlet one's (org.wso2.carbon.core.transports.http.HttpTransportListener / org.wso2.carbon.core.transports.http.HttpTransportListener) I do not get the "FAULT" property set and my error handling does not work.
Is there a standard way of checking if the response from one proxy service to another or response from data service to proxy is FAULT or not? I am looking for something which is independent of transport senders and receivers, at least HTTP ones.
Please help.
thanks
Abhijit
It is not good documentation I believe where none of the samples talk about how to handle the faults from Data service to Proxy service or am I missing something?
I would be thankful if I know the best practices to handle the errors from Data service as well as from one proxy to another proxy service.
Please help. This is big project at very prestigious company.
I think you need to check whether the soap body element has a soap:fault message or not. you can use the filter mediator with some xpath expression to check that.