"Don't version unless you absolutely must, and it is rare that you absolutely must" says Mike Amundsen in a series of API design workshops he held recently. Amundsen describes the "USE" paradigm for API design focussing on usability, scalability and evolvability. He describes the three most common styles of API implementation and how they compare to these principles.
Node.js has built a user-base and reputation for fast and scalable back-end systems. In a recent edition of the Nodeup podcast, four engineers share their experiences developing APIs using the platform. The conversation covers a range of key concerns including API design, security, testing, documentation, schemas and streaming. But advertising your API as RESTful may not be a good idea.
When JAX-RS 1.0 was first unveiled back in 2008 it became one of the first POJO/Annoation based frameworks for creating robust web-based applications. Now five years later Java EE 7 has been released and it includes the latest JAX-RS incarnation, version 2.0. InfoQ takes a look at the new features.
In the beginning of MBaaS, there was StackMob. Since then the mobile ecosystem has become flooded with competitors in this new approach to app dynamics. InfoQ takes a closer look at the Mobile Backend as a Service (MBaaS) provider StackMob and its privacy practices.
Final version of the RESTful Web Services Framework Jersey 2.0 was recently released. New features includes a Client API, Hypermedia support, Filters and interceptors, and support for asynchronous Clients and Services. Jersey 2.0 is a reference implementation of the JAX-RS 2.0 API Specification, (JSR 339), released late May.
The latest WSO2 API Manager adds native multi-tenancy, automatic generation of API documentation, and SAML-based SSO, running both on servers or in the cloud.
The fourth version of OData, the Microsoft-backed standard for querying data using REST conventions, has been accepted by the OASIS committee. The public review period will run thru June 2 and Microsoft expects OASIS to adopt the standard later this year.
A recent posting on a REST Architects list has prompted Ganesh Prasad to outline some problems that he sees with REST (over HTTP) in terms of more dynamic peer-to-peer environments and how they could be addressed. He suggests some lessons could be learned from Web Services and mentions an Internet Draft specification which he has been working on.
A keynote presentation by Adrian Cockroft, Cloud Architect at Netflix, describes the Netflix "Cloud Native" architecture and the trade-off between the Utopia of perfection versus the new engineering challenge of building highly agile and highly available services from ephemeral and often broken components.
The Spring Framework is currently in progress of adding HATEOAS, Hypermedia As The Engine Of Application State, support to REST web services. Primary focus for the library is to provide an API for simplifying the creation of hypermedia links and assembling of REST resource representations.
MuleSoft recently announced their Anypoint Platform supporting the development, deployment and integration of cloud and on-premise services. InfoQ caught up with MuleSoft CTO Ross Mason during his global Mule Summit tour to talk about the new platform. Ross founded the open-source Mule project.
In a recent discussion on the Service Oriented Architecture mailing list there has been some debate about the meaning of the term idempotent as applied to REST. For instance, does it matter if an operation only appears to be idempotent to users when in fact it does change some state, such as updating a logger?
Layer 7 Technologies has just been acquired by CA Technologies for the purpose of augmenting CA SiteMinder with Layer 7’s API Management & Security Suite. Layer 7 specializes in adding “access, security, SLA and management features” to existing service APIs.