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API description languages are sometimes called interface description languages (IDLs). The structured description might be used to generate documentation for human programmers ; such documentation may be easier to read than free-form documentation, since all documentation generated by the same tool follows the same formatting conventions.
The RESTful Service Description Language (RSDL) is a machine- and human-readable XML description of HTTP-based web applications (typically REST web services). [1]The language (defined by Michael Pasternak during his work on oVirt RESTful API) allows documenting the model of the resource(s) provided by a service, the relationships between them, and operations and the parameters that must be ...
The Web Application Description Language (WADL) is a machine-readable XML description of HTTP-based web services. [1] WADL models the resources provided by a service and the relationships between them. [1]
A Web API is a development in Web services where emphasis has been moving to simpler representational state transfer (REST) based communications. [2] Restful APIs do not require XML-based Web service protocols (SOAP and WSDL) to support their interfaces.
An action result (which will typically include a domain object or list) A domain service (essentially a stateless domain object) A small number of very specific representations such as Home, Version, and User. Restful Objects also defines a standard set of resources for accessing or manipulating these representations.
API use can vary depending on the type of programming language involved. An API for a procedural language such as Lua could consist primarily of basic routines to execute code, manipulate data or handle errors while an API for an object-oriented language, such as Java, would provide a specification of classes and its class methods.
The client can then use SOAP to actually call one of the operations listed in the WSDL file, using for example XML over HTTP. The current version of the specification is 2.0; version 1.1 has not been endorsed by the W3C but version 2.0 is a W3C recommendation. [1] WSDL 1.2 was renamed WSDL 2.0 because of its substantial differences from WSDL 1.1.
The aim of the research of the model as stated by the author was to find out the relationship between the constraints of REST and other forms of web services. [ 1 ] It divides the principal parts of RESTful design into three steps: resource identification ( URI ), HTTP verbs, and hypermedia controls (e.g. hyperlinks ).