Wadl file example

All named resources, which we are just about to add, are relative to this address. So, let's add a simple resource:. Obviously 7 is just an example and we won't declare every possible book id in WADL. Instead there is a handy placeholder syntax:There are two important aspects you should note: first, The.

We will see soon how it can be used in combination with methods. Thanks for visiting DZone today,. Edit Profile. Could not load tags. Raw Blame. Open with Desktop View raw View blame.

This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters. You signed in with another tab or window. Reload to refresh your session. XML schemata. Whilst entirely adequate for human consumption, this level of description precludes the following use cases which require a more machine-friendly description format:.

It would also be useful to have a common foundation for individual applications and protocols to re-use and perhaps extend rather than each inventing a new description format. Lines begin an application description and define the XML namespaces used elsewhere in the service description. Lines describe the 'search' GET method: lines describe the input; lines describe the possible outputs. Several WADL components support references to other components. Note that references are URI references, not ID references, and therefore support both intra- and inter-document cross referencing.

Intra-document references are made using fragment identifiers, e. Inter-document references are made using a URI to identify the document and a fragment identifier to identify the component within the referenced document, e. Absolute or relative URIs are allowed. The application element forms the root of a WADL description and contains the following:. Each WADL-defined element can have one or more child doc elements that can be used to document that element.

The doc element has the following attributes:. The doc element has mixed content and may contain text and zero or more child elements that form the body of the documentation.

The grammars element acts as a container for definitions of the format of data exchanged during execution of the protocol described by the WADL document. Such definitions may be included inline or by reference using the include element see section 2. It is permissible to include multiple definitions of a particular format: such definitions are assumed to be equivalent and consumers of a WADL description are free to choose amongst the alternatives or even combine them if they support that capability.

The include element allows the definitions of one or more data format descriptions to be included by reference. Use of the include element is logically equivalent to in-lining the referenced document within the WADL grammars element.

The resources element acts as a container for the resources provided by the application. A resources element has a base attribute of type xsd:anyURI that provides the base URI for each child resource identifier. Descendent resource elements see section 2. A resource element describes a set of resources, each identified by a URI that follows a common pattern. A resource element has the following attributes:. The value of the path attribute may be static or may contain embedded template parameters.

At runtime, the values of template parameters are substituted into the resource identifier when the resource is used, see section 2. Additional information about embedded template parameters can be conveyed using a child param element with a style attribute value 'template' whose name attribute value matches the name of the parameter embedded in the template.

The following example illustrates these rules and shows an extract from a Web application description that provides multiple resources:. A method element describes the input to and output from an HTTP protocol method that may be applied to a resource. A method element can either be a method definition or a reference to a method defined elsewhere.

A method reference element is a child of a resource element that has an href attribute whose type is xsd:anyURI. The value of the href attribute is a cross reference see section 2. This form of method element may be used to reduce duplication when the same method applies to more than one resource.

A method definition element is a child of a resource or application element and has the following attributes:. It is permissible to have multiple child method elements that have the same value of the name attribute for a given resource; such siblings represent distinct variations of the same HTTP method and will typically have different input data.

A request element describes the input to be included when applying an HTTP method to a resource. A request element has no attributes and may contain the following child elements:. Child param elements see section 2. A response element describes the output that results from performing an HTTP method on a resource.