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Questions tagged [contract-first]

A Web Services development strategy where a WSDL is written first and code that provides the service is generated from the WSDL.

The rationale behind writing a first and then generating code that provides the web service described therein is as follows: due to a range of factors it is the safest implementation strategy for managing change to the web services contract, ensuring interoperability between web service clients which can be implemented in a range of languages and platforms and thus have a range of data types and implementation options.

For more information

cf.

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WCF Service that supports XSD restrictions?

I’ve been struggling the past day trying to find a way to generate a WCF Service that actually maintains the restrictions that are defined in the originating XSDs. The basic problem is that if I build a contract first service using an XSD that…
typhoid
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One WCF service – two clients; One client does not work

I have one WCF service and two console app clients. Service: The service code is created from a wsdl contact using WCSF Blue tool. Client 1: This client is using wsdl that is obtained by browsing the svc file. This browsed wsdl file is slightly…
LCJ
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WCF Contract first based on xsd data types

We are creating data types as XSD definitions. These xsd files are then imported into a WebSphere Application Server. We want the WebSphere Application Server to be able to call a WCF web service using these datatypes. The original xsd was as…
Shiraz Bhaiji
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Contract First Approach with Jersey

I am currently working on a projects API layer with an existing REST services using JERSEY. Most of the initial services are created in a contract last approach utilizing jaxb annotations etc.. Lately, i was asked to do a contract first approach…
geneqew
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Generate C# Code from *.xsd files for use as WCF service

Update I want to generate C# classes files to be used as WCF service based on *.xsd files. How can I achieve that?
Pingpong
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How does a WSDL parser decide to generate a void method for a Request/Reply operation?

I have spent 5 hours on this, and I've already been up 30 hours writing this contract-first spec ("aggressive" deadline, ergo stupid) and I cannot see what I'm missing. I do not want a one-way operation as I expect faults. I have already built a…
x0n
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How to implement a Contract-First

I am doing some work with a 3rd party supplier who provide data via a web-push. They state that their web-push relies on a contract-first web service, and they have made a WSDL available for me to develop with. What are the steps involved in taking…
Jonathan Smith
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WCF Contract restrict string values

We are defining some WCF contracts for a project. In one case we want so send over a status field. We though of just sending this over as a text. Can we specify in the WCF contract that only these x string valuses are allowed? Would it be better to…
Shiraz Bhaiji
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What can replace Linq2Xsd?

We've been using Linq2Xsd for a decade. For enforcing centralised control internal data structures and external interfaces we found it invaluable. Our team size is about 10 developers in 3 sub-teams. We really like the way you can branch the code,…
RoboJ1M
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Contract First vs Contract last in current generation

The question might sound absurd. Every where when I see the difference between Contract First and Contract Last, I see the word WSDL. How does it fit in the current world of annotation and JSON Objects? Does it map like Contract-First --> Use…
madhairsilence
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Generate WebService from WSDL in Spring, Maven (contract first)

I want to create a contract first Spring webservice. So I have the WSDL file, but I can't find any example of generating the Spring webservices from the WSDL. With this Maven plugin, I can generate it, but it will be a J2EE WebService, and not a…
victorio
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Contract First SOA and WCF Contracts

I have a simple question. I am using WCF to create web services. I have created all the services without filling the operation bodies. Now I have the wsdl files auto-generated from the service contracts. Is this approach "Contract First", if I am…
Nadia Nahar
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CXF element reference

I'm trying run a contract-first by CXF and Maven. I have a WSDL which is inside src/java/resource/wsdl and 5 xsds which are inside src/java/resources/xsd My hierarchi seems like this: aaa.v1r0.xsd (have an element which refers to…
arthurfnsc
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What is the entry point in a CXF generated web service?

Using a contract-first approach, I generated a web service from a WSDL, using CXF. The web service loads fine by Tomcat 7 and responds properly to SOAP messages. But while I understand the auto-generated Java classes from the WSDL and XSD, I am not…
Withheld
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Apache CFX Schema validation - contract first

I am developing a Web service using Apache CXF and contract first approach with schema validation. Problem is, that validation is not working. There is no error, so it like is not activated. But validation is configured. So, I have took a look to…
jddsantaella
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