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GraphQL Syntax Used for a Novel Approach to Schema Validation and Code Generation
Nav Technologies has created an open-source schema definition and code generator that uses GraphQL syntax to define events and message formats. GraphQL was chosen for its expressiveness and familiarity among developers, but it is only used for its syntax; the Nav Schema Architecture (NSA) does not use the GraphQL runtime.
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The Human Aspects of API Design: An Interview with Apiary's Jakub Nesetril
API Design and description is more than just a technical interface contract between machines. Apiary's Co-Founder and CEO Jakub Nesetril points out that the real consumer of an API description is the developer, with all the concerns of engagement, usability and communication that entails. We spoke with Jakub recently about Apiary's approach to API design and emerging API tools and workflows.
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How Relevant Is Contract First Development Using Angle Brackets?
Christian Weyer of Thinktecture, announced the release of WSCF.blue a Visual Studio Add-in that enables contract first development of web services using WCF.
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TDD: Essential Skill or Architectural Landmine?
At JAOO '07 Bob Martin asserted: "it is irresponsible for a developer to ship a line of code he has not executed in a unit test." In this InfoQ video, Martin debated with another well respected software thought leader, Jim Coplien, on this and other topics, including Design by Contract vs. TDD and how much up-front architecture is needed to keep a system consistent with the business domain model.
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Article: "Code First" Web Services Reconsidered
In a new InfoQ article, Dennis Sosnoski questions the conventional wisdom that a contract-first approach to web services development, i.e. starting from WSDL, is superior to starting from code. He shows how the JiBX framework can be used to practice start-from-code development without incurring the disadvantages, specifically without coupling implementation and interface too tightly.
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Debate: Does REST Need a Description Language?
Following up on the debate of REST vs. WS-* discussed here last week, it is interesting to note a debate about "contracts" for RESTful services that has been picking up pace over the last few days.
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Consumer-Driven Contracts
In an article published on Martin Fowler's web site, Ian Robinson describes a new strategy for evolving contract versions in a community of service providers and consumers.
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Tutorial on Contract-First Web Services
Arjen Poutsma has posted a step-by-step tutorial on contract-first Web service development.