I have done a few use cases on WSO2-ESB including protocol mediation with transformation and service-chaining.
In all of them I had to manually write the wsdl for the proxy service. Having experienced other vendor products including Oracle and Tibco where wsdl generation is done by the tool.
Would it be right to assume in WSO2 ESB one needs to manually write the wsdl file to expose a proxy service on any protocol, do not see any documents calling that out.
Considering the usage of wsdl in practical use cases.
I have seen posts stating "you can give the WSDL available at your Axis2 service" but most of real time use cases would not be pass through and have custom request and response.
Thanks,
Wajid
I'm also confused with manual wsdl creation. As far as I can see there are gaps in wsdl proxy description. When I do wsdl proxy with WSO2 I have to indicate wsdl to expose
its either as:
"none" and I have only mediate function exposed
"same contract" and this breaks the whole idea of proxy because after that clients read original wsdl and go straight to original server access point.
or and I have several options to make my own wsdl.
With rich SOAP API (hundreds of methods) none of above work well, considering that manual support of exposed WSDL is rather cumbersome.
I wonder if there is more adequate way for proxying WSDL?
You can use java2wsdl generator tool to achieve the WSDL generation.
For the proxies, if you try to restrict access for some operations in your backend service, you can attach customized wsdl to the proxy.
The customization has to be done by yourself and it is simple..
If you want to generate a wsdl fro your service, jsut deploy the service in wso2as, and check the service dashboard, wsdl option to view the wsdls.
Related
mexHttpBinding is required to exchange metadata over Http, this is useful when clients want to create proxy classes.
I have a WCF service without mexHttpBinding but i can still see its WSDL on the browser, i can still create proxy classes by adding reference of it in VS.
What is the exact need of this binding or am i missing something?
My bad, below is the answer.
MexHttpBinding v/s WSDL
Does SOAP always need WSDL or can it work without WSDL? I've been doing some reading on the internet and it's making me confused.
From what I can see, SOAP request can contain the message in the XML: http://www.w3schools.com/soap/soap_example.asp. Then why do I need WSDL? Or does it depend on how the SOAP service is set up in the server end?
WSDL is a description of the service (Web Service Description Language). It is mainly used to a) describe the service in a non-ambiguous way, and b) allow tools to generate client and/or server code, which make building, and interacting with, the service easier.
You can certainly implement, or interact with, a SOAP service "by hand" but you wouldn't want to.
I have seen some of the SOAP- Example- Mediators. I have not found a transformation based on the endpoint-WSDL.
I want to send some nested named array in json or POX and that data should go into a complete namespaced headered (username, password) SOAP-Request based on the names.
All the examples I have found had either a very simple wsdl or the namespaces were static in the XSL-Transformation.
It should be possible to do that, as I see in for example php-NuSOAP. You feed it with a wsdl-endpoint, the operation you want to execute and the parameter-array, and it calls the Webservice.
I am looking for a solution which is not too much hardcoded for every single service, so the proxy still works when the wsdl changes and Server Clients get changed.
As far as I understand the payload factory mediator in (https://stackoverflow.com/a/12969814/2277620) you would have to hardcode the soap-format in the mediator.
If WSO2 is the wrong tool for that I'd like to have a hint which tool could help.
Thanks in advance!
Marco.
For my understanding, you want to have a proxy, but it's backend service/wsdl may vary..
What , you can do is, you can save the wsdl (dynamic wsdl)in registry and point that in your proxy. whenever you edit the wsdl, proxy will automatically adopt to that..But the request, which you send to your backend should follow the wsdl definitions..It is totally client side responsibility..
I am new to Spring web services. I am going to create an xml request, and send it as a SOAP request to a web service and receive the response.I read different documents but still confused as I could not find a working sample yet.
I know that I should use WebServiceTemplate and WebServiceMessageSender, SaajSoapmessageFactory (please let me know if I am wrong) but not sure how to use them.
Do I need WSDL? if yes why?
If you have any sample code please send me to get clear on it.
Thanks
If you want to send SOAP requests, you would like to be a SOAP client. Seems like you want to use spring-ws project. Check out their great documentation on the client side. The same documentation will guide you through the process of creating a server. There are plenty of examples and ready-made configuration snippets waiting for you.
Spring-WS is built on top of XML Schema description of your message, so you will need WSDL to generate e.g. JAXB models of your requests and responses.
AFAIK, for "web services" , the WSDL file is the machine blueprint of the "ports" as they are called However! ports in WSDL "means" java language(or any other programming language used with a routine or sub or procedure or function) method and has a specific naming scheme associate the .wsdl xml file(template of the service). Each WSDL port(language method) has specifications of return value and data specifications for how to feed it arguments and their type values.
Working on a docuSign integration with Coldfusion and need assistance in making the SOAP request using WS security.
Your question is a little short on detail, but I presume you mean the Web Services SOAP security extension.
We had to do this a few years back when communicating with a .NET web service. The basic idea is that you provide a set of extra SOAP headers that contains security info such as:
Timestamp
Username
Password
Etc
To do this you need to create a new XML document as per the standard defined here. Next you will need to write code to create the SOAP headers. This means:
Create your remote web service object, e.g.
var objWebSvc = createObject("webservice", "http://remoteURL?WSDL");
Creating an XML document to represent the new headers
Populating it with the required info (such as username and timestamp etc.)
Adding the XML document to the web service object, using addSOAPRequestHeader()
Call your remote web service
Then of course if and when they call your web service you'll need to parse out those headers from their SOAP request and validate them. That can be done by grabbing the XML using getSOAPRequestHeader() and parsing out the info.
I found this to be an error prone task and (basically) a royal pain. The web service we integrated with eventually dropped the requirement, apparently becuase the any web services trying to connect that were not native .NET were having a hard time implementing the specification.
Good luck!
I blogged this a while back. See if this helps:
http://onlineanthony.blogspot.com/2010/05/using-ws-security-for-soap-in.html