The XWiki RESTful API (XWiki.org)

XWiki provides fine-grain access to virtually every element through an API that is based on HTTP semantics, i.e., a RESTful API. In this page you will find all the details to take advantage of this API and the instructions to use it at its full potential.

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= Accessing the service =

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By defaut the XWiki RESTful API entrypoint is rooted at the following URI:

http://host:port/xwiki/rest

All the resource references described in the [[XWiki RESTful API Documentation>>#HXWikiRESTfulAPIDocumentation]] should be intended relative to this URL.

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For example the ##/wikis## resources on a server running on ##localhost## on port ##8080## can be retrieved using the following URL : ##http:~/~/localhost:8080/xwiki/rest/wikis##

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In addition to retrieving content in XML format, you can also retrieve it in JSON format by adding the parameter ##?media=json## in the URL. For example: ##http:~/~/localhost:8080/xwiki/rest/wikis?media=json##

= Dataset =

This section contains a brief and high-level description of the XWiki data set that should serve as a basis for presenting resources and their associated operations.

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XWiki has **pages** organized in **spaces**. Each **page** is available in multiple **versions** (its **history**) and **translations**. Translated pages have their own **versions** and **history** which are independent. Each page might have **attachments**. Each attachment has its own **history**. Attachments are shared among all the different translations of a page (i.e., the same set of attachments is the same regardless of the page language). Pages can have one or more **objects**. Objects are instances of a **class** that contains a set of **properties**. Some objects might be directly exposed as first class entities, such as **comments** and **tags**. Objects, as attachments, are shared among all page translations.

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= Understanding resources and representations =

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"An important concept in REST is the existence of resources (sources of specific information), each of which is referenced with a global identifier (e.g., an URI in HTTP). In order to manipulate these resources, components of the network (user agents and origin servers) communicate via a standardized interface (e.g., HTTP) and exchange representations of these resources (the actual documents conveying the information)." ([[Wikipedia>>http://en.wikipedia.org/wiki/Representational_State_Transfer#Central_principle]])

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Resources in XWiki are pages, attachments, objects, properties, spaces, and all the //things// we described in the previous section. XWiki has a default way of conveying the information about these resources, i.e., by providing well defined XML representations that contain all the information associated to the resource in an XML format. This format is described using an [[XML Schema Definition file>>https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-rest/xwiki-platform-rest-model/src/main/resources/xwiki.rest.model.xsd]].

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Of course the same resource can be represented in many different ways. This is yet to be documented.

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Another important aspect of representations is that they contain useful information for linking related resources. This is a realization of the //Hypermedia As The Engine Of The Application State (HATEOAS)// principle. In XML representations this information is conveyed through the ##<link>## tag. This tag has two important parameters: **rel** and **href**. **rel** specifies the "semantics" of the link, while **href** is the URI of the linked resource.

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For example, in the representation of a page, we can have links to the comments, tags, attachments which are independent resources associated to the current page. These links are provided in the XML representation of a page and allow a client to navigate to related resources... Like we do every day when we click on a link in a web page.

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[[image:representation||height="430"]]

== Relations ==

The available relations that you might find in the XML resource representations are the following:

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|=Rel|=Semantics

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|{{{http://www.xwiki.org/rel/wikis}}}|The representation containing the list of virtual wikis.

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|{{{http://www.xwiki.org/rel/spaces}}}|The representation containing the list of spaces in a wiki.

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|{{{http://www.xwiki.org/rel/pages}}}|The representation containing the list of pages in a space.

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|{{{http://www.xwiki.org/rel/translation}}}|The representation containing a translation of a page.

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|{{{http://www.xwiki.org/rel/page}}}|The representation for a page.

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|{{{http://www.xwiki.org/rel/space}}}|The representation for a space.

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|{{{http://www.xwiki.org/rel/parent}}}|The representation for the page that is parent of the current resource.

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|{{{http://www.xwiki.org/rel/home}}}|The representation for the page that is the home of the current resource.

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|{{{http://www.xwiki.org/rel/attachmentData}}}|The representation of the actual attachment data.

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|{{{http://www.xwiki.org/rel/comments}}}|The representation of the list of comments associated to the current resource.

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|{{{http://www.xwiki.org/rel/attachments}}}|The representation of the list of attachments associated to the current resource.

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|{{{http://www.xwiki.org/rel/objects}}}|The representation of the list of objects associated to the current resource.

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|{{{http://www.xwiki.org/rel/object}}}|The representation for an object.

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|{{{http://www.xwiki.org/rel/classes}}}|The representation of the list of classes associated to the current resource.

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|{{{http://www.xwiki.org/rel/history}}}|The representation of the list of history information associated to the current resource.

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|{{{http://www.xwiki.org/rel/class}}}|The representation for a class.

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|{{{http://www.xwiki.org/rel/property}}}|The representation for a property.

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|{{{http://www.xwiki.org/rel/properties}}}|The representation of the list of properties associated to the current resource.

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|{{{http://www.xwiki.org/rel/modifications}}}|The representation of the list of modifications associated to the current resource.

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|{{{http://www.xwiki.org/rel/children}}}|The representation of the list of children associated to the current resource.

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|{{{http://www.xwiki.org/rel/tags}}}|The representation of the list of tags associated to the current resource.

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|{{{http://www.xwiki.org/rel/tag}}}|The representation of a tag.

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|{{{http://www.xwiki.org/rel/search}}}|The representation for a search resource.

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|{{{http://www.xwiki.org/rel/syntaxes}}}|The representation for a syntax resource.

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Relations are defined as URIs in order to provide a sort of namespace. Currently these URIs are not links to real web pages but, in the future, they might point to descriptions of their semantics on actual web pages (or other kinds of representations).

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== The "HATEOAS" Graph ==

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In order to better understand the relations among resources you might have a look at this [[graph>>attach:XWikiHATEOAS.pdf]] that pictures all the resources available in the XWiki RESTful API and the relations among them. In this graph, nodes are [[URI templates>>http://code.google.com/p/uri-templates/]] representing classes of resources. Edges are the possible links that you might find in a representation of a given resource, and their associated relations.

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This graph shows that by starting from the API entry-point a client can navigate and discover all the resources just by following the links provided in representations (and by knowing their semantics). This was exactly the way how this graph was generated.

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= Interacting with the XWiki RESTful API =

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The XWiki RESTful API is accessible through HTTP so, in principle, you can use every client that is capable of "speaking" HTTP in order to interact with it. Even a web browser!

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If you want to write more complex programs you might download an HTTP library for your favorite language (e.g., [[http://hc.apache.org/]]).

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Java users might take advantage of the [[JAXB>>http://jaxb.java.net/]] framework and its [[XJC binding compiler>>http://jaxb.java.net/2.2.4/docs/xjc.html]] in order to generate domain object models directly from the [[XML Schema Definition>>https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-rest/xwiki-platform-rest-model/src/main/resources/xwiki.rest.model.xsd]], and use them for serializing and de-serializing XML representations.

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If you use this approach (Apache HTTP Client + JAXB) you will find yourself writing some code like this:

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import javax.xml.bind.JAXBContext;

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import javax.xml.bind.Unmarshaller;

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import org.apache.commons.httpclient.HttpClient;

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import org.apache.commons.httpclient.methods.GetMethod;

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import org.xwiki.rest.model.jaxb.Page;

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...

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HttpClient httpClient = new HttpClient();

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JAXBContext context = JAXBContext.newInstance("org.xwiki.rest.model.jaxb");

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Unmarshaller unmarshaller = context.createUnmarshaller();

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GetMethod getMethod = new GetMethod("http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Main/pages/WebHome");

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getMethod.addRequestHeader("Accept", "application/xml");

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httpClient.executeMethod(getMethod);

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Page page = (Page) unmarshaller.unmarshal(getMethod.getResponseBodyAsStream());

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And you will have all the information about the Main.WebHome page in the Page object, without the need of handling XML directly.

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Because of the wide variety of HTTP frameworks available we don't provide a full tutorial about using them. However, in order to show you how to interact with the XWiki RESTful API, we will use [[curl>>http://curl.haxx.se]]: a standard command line HTTP client that provides an interface to all the functionalities of the HTTP protocol.

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By using curl, the previous example would have been:

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$ curl http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Main/pages/WebHome

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

...

== Authentication ==

The XWiki RESTful API supports two types of authentication:

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* **HTTP BASIC Auth**: You provide your credentials using the Authorization HTTP header

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* **XWiki session**: If you are logged in XWiki and you use the cookies provided by the authentication mechanism, you will also be authenticated to the XWiki RESTful API. This is useful, for example, when you are interacting with the API using the XMLHttpRequest object of a browser using Javascript.

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If you don't provide any credentials the XWiki RESTful API will recognize you as a XWiki.Guest user.

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So if you have, let's say a Main.PrivatePage, and you try to do:

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$ curl -v http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Main/pages/PrivatePage

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...

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< HTTP/1.1 401 Unauthorized

...

You will get an Unauthorized empty response.

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On the contrary, by specifying Admin credentials you gain access to the actual page:

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$ curl -u Admin:admin http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Main/pages/PrivatePage

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

...

<content>Only admin can see this</content>

</page>

== Sending representations ==

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Many resources are modifiable, so you can send representations in order to change the state of those resources (e.g., pages).

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All modifiable resources accept XML representations that conform to the [[XML Schema Definition>>https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-rest/xwiki-platform-rest-model/src/main/resources/xwiki.rest.model.xsd]]. However, some other representations might be accepted as well (see the following sections).

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Resource update is usually done by using the PUT method, while resource creation is done via PUT or POST.

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For example, in order to create a page you might do the following:

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$ curl -u Admin:admin -X PUT --data-binary "@newpage.xml" -H "Content-Type: application/xml" http://localhost:8080/xwiki/rest/wikis/xwiki/spaces/Main/pages/NewPage

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

...

<creator>XWiki.Admin</creator>

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<modifier>XWiki.Admin</modifier>

</page>

Where newpage.xml is an XML file containing

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

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<title>Hello world</title>

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<syntax>xwiki/2.0</syntax>

</page>

The page has been created and is accessible. Subsequent PUT requests to the page URI will modify its content.

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You can specify a subset of the three elements {{{title}}}, {{{syntax}}}, and {{{content}}} in the XML when updating/creating a page.

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For example, if you just want to change the title, it is sufficient to specify only the {{{title}}} element. The current content and the syntax of the page will be left unchanged.

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== Overcoming browser limitations ==

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As said before, it could be useful to send information by using browser's XmlHttpRequest objects. However, currently many browsers only support GET and POST methods, so it is impossible to send, for example, PUT requests. In order to overcome this limitation you can override the HTTP Method by specifying a ##method## parameter in the URI query string.

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In the previous example, if you send a POST request to the ##http:~/~/localhost:8080/xwiki/rest/wikis/xwiki/spaces/Main/pages/NewPage?method=PUT## it will be interpreted as if it were an actual PUT request.

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This overriding mechanism allows the interaction with the XWiki RESTful API by using any kind of browser.

== PUT vs POST ==

In the following sections you will see that sometimes resources are created by using PUT and sometimes by using POST. The general principle is that if the client is responsible for choosing the resource URI then PUT is used. If it's the server that bears this responsibility, then POST is used.

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To be clearer, when a client wants to create a page it knows **where** that page should go, so it is able to communicate the server the target URI. PUT is used.

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A client, on the contrary, cannot know beforehand what will be the URI of a comment, since comment URIs contains the ID of the comment and this information is generated by the server. In this case the client will do a POST and the server, in response, will communicate the URI it generated for the newly created comment.

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= XWiki RESTful API Documentation =

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In this section you will find the documentation of the whole XWiki RESTful API.

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**application/xml** representations refers to the [[XML Schema Definition>>https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-rest/xwiki-platform-rest-model/src/main/resources/xwiki.rest.model.xsd]].

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Resource URIs are specified using [[URI templates>>http://code.google.com/p/uri-templates/]]. Bracketed elements are formal parameters and should be instantiated to actual values in order to retrieve the associated resource.

== Root resources ==

By defaut all the resources of the RESTful API are rooted at the following URI: ##http:~/~/server:port/xwiki/rest/## (depending on where your XWiki is running)

=== / ===

* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (XWiki element)

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** **Description:** Retrieves the entry root description containing information about the server (currently returns the XWiki product Version).

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** **Status codes:**

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*** 200: If the request was successful.

=== /syntaxes ===

* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Syntaxes element)

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** **Description:** The list of syntaxes supported by the XWiki instance.

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** **Status codes:**

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*** 200: If the request was successful.

=== /wikis ===

* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Wikis element)

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** **Description:** The list of wikis available on the XWiki instance. Unless the wiki is configured to be a wiki farm, this list is usually made of a single element 'xwiki'.

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** **Status codes:**

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*** 200: If the request was successful.

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=== /wikis/query?q~={query}&wikis~=wikiList[&distinct~={true,false}][&order~={asc,desc}][&start~=n][&number~=n][&prettyNames~={true,false}] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (SearchResults element)

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** **Description:** Search resources (pages and attachments):

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*** [since 6.4] using a SOLR query (handled by the [[SOLR Query module>>extensions:Extension.Solr Search Query API]]) on the wikis that are specified as a comma separated list in the //wikis// parameter.

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*** [before 6.4] using a Lucene query (handled by the [[Lucene Plugin>>extensions:Extension.Lucene Plugin]]) on the wikis that are specified as a comma separated list in the //wikis// parameter.

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** **Status codes:**

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*** 200: If the request was successful.

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=== /wikis/{wikiName} ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Wiki element)

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** **Description:** information about the wiki

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** **Status codes:**

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*** 200: If the request was successful.

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* **HTTP Method:** POST

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** **Accepted Media types:**

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*** octet/stream (A XAR file)

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** **Media types:**

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*** application/xml (Wiki element)

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** **Query parameters**

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*** backup={true/false} - import XAR as a backup XAR

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*** history={RESET/REPLACE/ADD} - history importing

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** **Description:** import a XAR in a wiki.

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** **Status codes:**

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*** 200: If the request was successful.

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=== /wikis/{wikiName}/search?q~={keywords}~[~[&scope~={name,content,title,objects}...]&start~=n][&number~=n][&orderField~=field&order~={asc,desc}][distinct~={true,false}][&prettyNames~={true,false}] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (SearchResults element)

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** **Description:** The list of pages and objects that contain the {keywords} in the specified {scope}s. Multiple scopes can be specified. Search results are relative to the whole {wikiName}

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** **Status codes:**

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*** 200: If the request was successful.

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=== /wikis/{wikiName}/query?q~={query}&type~={hql,xwql,lucene,solr}[&distinct~={true,false}]~~[&order~={asc,desc}][&start~=n][&number~=n][&prettyNames~={true,false}][&className~=className] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (SearchResults element)

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** **Description:** Allow to execute HQL, XWQL, Lucene or SOLR queries on the given {wikiName}. The //q// parameter contains the corresponding query. See [[HQL Query Examples in Velocity>>platform:DevGuide.velocityHqlExamples]], [[XWiki Query Language Specification>>dev:Design.XWiki Query Language Specification]], [[Lucene Plugin>>extensions:Extension.Lucene Plugin]] and [[SOLR query API>>extensions:Extension.Solr Search Query API]] examples of the queries that can be specified in this parameter. If type is //hql// and //className// is specified, the result will also contain the data for the first object of the corresponding class.

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** **Status codes:**

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*** 200: If the request was successful.

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=== /wikimanager (This resource is only available when using XWiki Enterprise Manager) ===

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* **HTTP Method:** POST

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** **Accepted Media types:**

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*** application/xml (Wiki element)

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** **Media types:**

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*** application/xml (Wiki element)

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** **Query parameters**

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*** template - the wiki template to be used for initializing the wiki.

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*** history={RESET/REPLACE/ADD} - history importing

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** **Description:** create a new wiki.

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** **Status codes:**

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*** 200: If the request was successful.

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== Space resources ==

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=== /wikis/{wikiName}/spaces[?start~=offset&number~=n] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Spaces element)

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** **Description:** Retrieves the list of spaces available in the {wikiName} wiki.

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** **Status codes:**

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*** 200: If the request was successful.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/search?q~={keywords}~[~[&scope~={name,content,title,objects}...]&number~=n] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Search results element)

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** **Description:** The list of pages and objects that contain the {keywords} in the specified {scope}s. Multiple scopes can be specified. Search results are relative to space {spaceName}

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

== Page resources ==

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages[?start~=offset&number~=n] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Pages element)

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** **Description:** The list of pages in the space {spaceName}

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}[?prettyNames~={true,false}&objects~={true,false}&class~={true,false}&attachments~={true,false}] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Page element)

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** **Query parameters**

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*** ##prettyNames##: also return the pretty name for various document information (like the author display name, etc). Disabled by default.

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*** ##objects##: //[since 7.3M1]// also return the objects. Disabled by default.

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*** ##class##: //[since 7.3M1]// also return the class. Disabled by default.

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*** ##attachments##: //[since 7.3M1]// also return the attachments metadatas. Disabled by default.

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** **Description:**

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

\\

* **HTTP Method:** PUT

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** **Accepted Media types:**

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*** application/xml (Page element)

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*** text/plain (Only page content)

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*** application/x-www-form-urlencoded (allowed field names: title, parent, hidden //[since 7.3]//, content)

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** **Media types:**

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*** application/xml (Page element)

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** **Description:** Create or updates a page.

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** **Status codes:**

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*** 201: If the page was created.

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*** 202: If the page was updated.

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*** 304: If the page was not modified.

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*** 401: If the user is not authorized.

\\

* **HTTP Method:** DELETE

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** **Media types:**

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*** application/xml (Page element)

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** **Description:** Delete the page.

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** **Status codes:**

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*** 204: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history[?start~=offset&number~=n] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (History element)

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** **Description:** The list of all the versions of the given page.

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version} ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Page element)

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** **Description:** The page at version {version}

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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==== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/translations[?start~=offset&number~=n] ====

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Translations element)

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** **Description:** The list of available translation for the page

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/translations/{language} ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Page element)

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** **Description:** The page at in the given {language}.

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

\\

* **HTTP Method:** PUT

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** **Accepted Media types:**

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*** application/xml (Page element)

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*** text/plain (Only page content)

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*** application/x-www-form-urlencoded (allowed field names: title, parent, content)

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** **Media types:**

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*** application/xml (Page element)

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** **Description:** Create or updates a page translation.

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** **Status codes:**

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*** 201: If the page was created.

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*** 202: If the page was updated.

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*** 304: If the page was not modified.

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*** 401: If the user is not authorized.

\\

* **HTTP Method:** DELETE

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** **Media types:**

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*** application/xml (Page element)

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** **Description:** Delete the page translation.

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** **Status codes:**

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*** 204: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/translations/{language}/history ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (History element)

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** **Description:** The list of all the available revisions of the page in a given {language}.

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/translations/{lang}/history/{version} ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Page element)

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** **Description:** A page at a given {version} in a given {language}.

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/children ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Pages element)

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** **Description:** The list of the children of a given page.

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** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/pages[?name~=paneName&space~=spaceName&author~=authorName] ===

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* **HTTP Method:** GET

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** **Media types:**

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*** application/xml (Pages element)

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** **Description:** The list of pages in the wiki {wikiName}. Filters can be set for the name, space and/or author to include only pages that match the given filters. This resource can be used to search for pages in a wiki.

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** **Status codes:**

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*** 200: If the request was successful.

495

*** 401: If the user is not authorized.

== Tag resources ==

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/tags ===

500

501

* **HTTP Method:** GET

502

** **Media types:**

503

*** application/xml (Tags element)

504

** **Description:** List page tags.

505

** **Status codes:**

506

*** 200: If the request was successful.

507

*** 401: If the user is not authorized.

\\

* **HTTP Method:** PUT

512

** **Accepted Media types:**

513

*** application/xml (Tag element)

514

*** text/plain

515

*** application/x-www-form-urlencoded (allowed field names: tag)

516

** **Media types:**

517

*** application/xml (Tags element)

518

** **Description:** Add a tag to the page.

519

** **Status codes:**

520

*** 202: If the request was successful.

521

*** 401: If the user is not authorized.

522

523

=== /wikis/{wikiName}/tags ===

524

525

* **HTTP Method:** GET

526

** **Media types:**

527

*** application/xml (Tags element)

528

** **Description:** The list of all available tags

529

** **Status codes:**

530

*** 200: If the request was successful.

531

*** 401: If the user is not authorized.

532

533

=== /wikis/{wikiName}/tags/{tag1}[,{tag2},{tag3}...][?start~=offset&number~=n] ===

534

535

* **HTTP Method:** GET

536

** **Media types:**

537

*** application/xml (Pages element)

538

** **Description:** The list of pages having the specified tags.

539

** **Status codes:**

540

*** 200: If the request was successful.

541

*** 401: If the user is not authorized.

542

543

== Comments resources ==

544

545

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/comments[?start~=offset&number~=n] ===

546

547

* **HTTP Method:** GET

548

** **Media types:**

549

*** application/xml (Comments element)

550

** **Description:** The list of comments on a given page.

551

** **Status codes:**

552

*** 200: If the request was successful.

553

*** 401: If the user is not authorized.

\\

* **HTTP Method:** POST

558

** **Accepted Media types:**

559

*** application/xml (Comment element)

560

*** text/plain

561

*** application/x-www-form-urlencoded - allowed field names: ##text##, ##replyTo## (object number of the replied comment, since XE 2.3)

562

** **Media types:**

563

*** application/xml (Comment element)

564

** **Description:** Create a comment on the given page.

565

** **Status codes:**

566

*** 201: If the comment was created. (The Location header will contain the URI where the comment has been created.)

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/comments/{commentId} ===

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* **HTTP Method:** GET

572

** **Media types:**

573

*** application/xml (Comment element)

574

** **Description:** A specific comment on a page

575

** **Status codes:**

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*** 200: If the request was successful.

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*** 401: If the user is not authorized.

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/comments ===

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* **HTTP Method:** GET

582

** **Media types:**

583

*** application/xml (Comments element)

584

** **Description:** The list of comments at a specific page {version}.

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** **Status codes:**

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*** 200: If the request was successful.

587

*** 401: If the user is not authorized.

588

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=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/comments/{commentId} ===

590

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* **HTTP Method:** GET

592

** **Media types:**

593

*** application/xml (Comment element)

594

** **Description:** A comment at a specific page {version}.

595

** **Status codes:**

596

*** 200: If the request was successful.

597

*** 401: If the user is not authorized.

598

599

== Attachments resources ==

600

601

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/attachments[?start~=offset&number~=n] ===

602

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* **HTTP Method:** GET

604

** **Media types:**

605

*** application/xml (Attachments element)

606

** **Description:** The list of attachments of a given page.

607

** **Status codes:**

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*** 200: If the request was successful.

609

*** 401: If the user is not authorized.

610

611

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/attachments/{attachmentName} ===

612

613

* **HTTP Method:** GET

614

** **Media types:**

615

*** The same of the attachment media type.

616

** **Description:** The attachment identified by {attachmentName} on a given page.

617

** **Status codes:**

618

*** 200: If the request was successful.

619

*** 401: If the user is not authorized.

\\

* **HTTP Method:** PUT

624

** **Accepted media types:**

625

*** **/**

626

** **Media types:**

627

*** application/xml (AttachmentSummary element)

628

** **Description:** Create an attachment identified by {attachmentName} on a given page.

629

** **Status codes:**

630

*** 201: If the attachment was created.

631

*** 202: If the attachment was updated.

632

*** 401: If the user is not authorized.

\\

* **HTTP Method:** DELETE

637

** **Media types:**

638

** **Description:** Delete the attachment identified by {attachmentName} on a given page.

639

** **Status codes:**

640

*** 204: If the attachment was deleted.

641

*** 401: If the user is not authorized.

642

643

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/attachments[?start~=offset&number~=n] ===

644

645

* **HTTP Method:** GET

646

** **Media types:**

647

*** application/xml (Attachments element)

648

** **Description:** The list of attachments at a given page {version}.

649

** **Status codes:**

650

*** 200: If the request was successful.

651

*** 401: If the user is not authorized.

652

653

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/attachments/{attachmentName} ===

654

655

* **HTTP Method:** GET

656

** **Media types:**

657

*** The same of the attachment media type.

658

** **Description:** The attachment identified by {attachmentName} on a given page {version}.

659

** **Status codes:**

660

*** 200: If the request was successful.

661

*** 401: If the user is not authorized.

662

663

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/attachments/{attachmentName}/history ===

664

665

* **HTTP Method:** GET

666

** **Media types:**

667

*** application/xml (Attachments element)

668

** **Description:** The list of available version for the {attachmentName}

669

** **Status codes:**

670

*** 200: If the request was successful.

671

*** 401: If the user is not authorized.

672

673

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/attachments/{attachmentName}/history/{version} ===

674

675

* **HTTP Method:** GET

676

** **Media types:**

677

*** The same of the attachment media type.

678

** **Description:** The {attachmentName} at a given {version}

679

** **Status codes:**

680

*** 200: If the request was successful.

681

*** 401: If the user is not authorized.

682

683

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/attachments[?name~=attachmentName&page~=pageName&author~=authorName&types~=attachmentTypeList&start~=offset&number~=n] ===

684

685

* **HTTP Method:** GET

686

** **Media types:**

687

*** application/xml (Attachments element)

688

** **Description:** The list of attachments of pages located in a given {spaceName}. Filters can be set for the name, page, author and/or types (comma separated list of strings) to include only attachments that match the given filters. This resource can be used to search for attachments in a space.

689

** **Status codes:**

690

*** 200: If the request was successful.

691

*** 401: If the user is not authorized.

692

693

=== /wikis/{wikiName}/attachments[?name~=attachmentName&page~=pageName&space~=spaceName&author~=authorName&types~=attachmentTypeList&start~=offset&number~=n] ===

694

695

* **HTTP Method:** GET

696

** **Media types:**

697

*** application/xml (Attachments element)

698

** **Description:** The list of attachments in a given {wikiName}. Filters can be set for the name, page, space, author and/or type (comma separated list of strings) to include only attachments that match the given filters. This resource can be used to search for attachments in a wiki.

699

** **Status codes:**

700

*** 200: If the request was successful.

701

*** 401: If the user is not authorized.

702

703

== Object resources ==

704

705

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/objects[?start~=offset&number~=n] ===

706

707

* **HTTP Method:** GET

708

** **Media types:**

709

*** application/xml (Objects element)

710

** **Description:** The list of objects associated to a page.

711

** **Status codes:**

712

*** 200: If the request was successful.

713

*** 401: If the user is not authorized.

\\

* **HTTP Method:** POST

718

** **Accepted media types:**

719

*** application/xml (Object element)

720

*** application/x-www-form-urlencoded (a set of property#name=value pairs representing properties and a field className)

721

** **Media types:**

722

*** application/xml (Object element)

723

** **Description:** Create a new object.

724

** **Status codes:**

725

*** 201: If the object was created (The Location header will contain the URI associated to the newly created object).

726

*** 401: If the user is not authorized.

727

728

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/objects/{className}[?start~=offset&number~=n] ===

729

730

* **HTTP Method:** GET

731

** **Media types:**

732

*** application/xml (Objects element)

733

** **Description:** The list of objects of a given {className} associated to a page.

734

** **Status codes:**

735

*** 200: If the request was successful.

736

*** 401: If the user is not authorized.

737

738

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/objects/{className}/{objectNumber} ===

739

740

* **HTTP Method:** GET

741

** **Media types:**

742

*** application/xml (Object element)

743

** **Description:** The object of type {className} identified by {objectNumber} associated to the given page.

744

** **Status codes:**

745

*** 200: If the request was successful.

746

*** 401: If the user is not authorized.

\\

* **HTTP Method:** PUT

751

** **Accepted media types:**

752

*** application/xml (Object element)

753

*** application/x-www-form-urlencoded (a set of property#name=value pairs representing properties)

754

** **Media types:**

755

*** application/xml (Object element)

756

** **Description:** Modify the object properties.

757

** **Status codes:**

758

*** 202: If the object was updated.

759

*** 401: If the user is not authorized.

\\

* **HTTP Method:** DELETE

764

** **Media types:**

765

** **Description:** Delete the object.

766

** **Status codes:**

767

*** 204: If the object was deleted.

768

*** 401: If the user is not authorized.

769

770

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/objects/{className}/{objectNumber}/properties ===

771

772

* **HTTP Method:** GET

773

** **Media types:**

774

*** application/xml (Properties element)

775

** **Description:** The properties of the object of type {className} identified by {objectNumber} associated to the given page.

776

** **Status codes:**

777

*** 200: If the request was successful.

778

*** 401: If the user is not authorized.

779

780

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/objects/{className}/{objectNumber}/properties/{propertyName} ===

781

782

* **HTTP Method:** GET

783

** **Media types:**

784

*** application/xml (Properties element)

785

** **Description:** The property {propertyname} of the object of type {className} identified by {objectNumber} associated to the given page.

786

** **Status codes:**

787

*** 200: If the request was successful.

788

*** 401: If the user is not authorized.

\\

* **HTTP Method:** PUT

793

** **Accepted media types:**

794

*** application/xml (Property element)

795

*** text/plain

796

*** application/x-www-form-urlencoded (a field property#name=value pairs representing a property)

797

** **Media types:**

798

*** application/xml (Property element)

799

** **Description:** Modify the object properties.

800

** **Status codes:**

801

*** 202: If the object was updated.

802

*** 401: If the user is not authorized.

803

804

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/objects[?start~=offset&number~=n] ===

805

806

* **HTTP Method:** GET

807

** **Media types:**

808

*** application/xml (Objects element)

809

** **Description:** The list of objects associated to a page at a given {version}.

810

** **Status codes:**

811

*** 200: If the request was successful.

812

*** 401: If the user is not authorized.

813

814

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/objects/{className}/{objectNumber} ===

815

816

* **HTTP Method:** GET

817

** **Media types:**

818

*** application/xml (Object element)

819

** **Description:** The object of type {className} identified by {objectNumber} associated to the given page at a given {version}.

820

** **Status codes:**

821

*** 200: If the request was successful.

822

*** 401: If the user is not authorized.

823

824

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/objects/{className}/{objectNumber}/properties ===

825

826

* **HTTP Method:** GET

827

** **Media types:**

828

*** application/xml (Properties element)

829

** **Description:** The properties of the object of type {className} identified by {objectNumber} associated to the given page at a given {version}.

830

** **Status codes:**

831

*** 200: If the request was successful.

832

*** 401: If the user is not authorized.

833

834

=== /wikis/{wikiName}/spaces/{spaceName}[/spaces/{nestedSpaceName}]*/pages/{pageName}/history/{version}/objects/{className}/{objectNumber}/properties/{propertyName} ===

835

836

* **HTTP Method:** GET

837

** **Media types:**

838

*** application/xml (Properties element)

839

** **Description:** The property {propertyname} of the object of type {className} identified by {objectNumber} associated to the given page at a given {version}.

840

** **Status codes:**

841

*** 200: If the request was successful.

842

*** 401: If the user is not authorized.

843

844

=== /wikis/{wikiName}/class/{className}/objects ===

845

846

* **HTTP Method:** GET

847

** **Media types:**

848

*** application/xml (Objects element)

849

** **Description:** The list of all the objects of a given {className}.

850

** **Status codes:**

851

*** 200: If the request was successful.

852

*** 401: If the user is not authorized.

853

854

== Class resources ==

855

856

=== /wikis/{wikiName}/classes[?start~=offset&number~=n] ===

857

858

* **HTTP Method:** GET

859

** **Media types:**

860

*** application/xml (Classes element)

861

** **Description:** The list of all the classes defined in the wiki {wikiName}

862

** **Status codes:**

863

*** 200: If the request was successful.

864

*** 401: If the user is not authorized.

865

866

=== /wikis/{wikiName}/classes/{className} ===

867

868

* **HTTP Method:** GET

869

** **Media types:**

870

*** application/xml (Class element)

871

** **Description:** The {className} definition

872

** **Status codes:**

873

*** 200: If the request was successful.

874

*** 401: If the user is not authorized.

875

876

=== /wikis/{wikiName}/classes/{className}/properties ===

877

878

* **HTTP Method:** GET

879

** **Media types:**

880

*** application/xml (Properties element)

881

** **Description:** The properties of the class {className}.

882

** **Status codes:**

883

*** 200: If the request was successful.

884

*** 401: If the user is not authorized.

885

886

=== /wikis/{wikiName}/classes/{className}/properties/{property} ===

887

888

* **HTTP Method:** GET

889

** **Media types:**

890

*** application/xml (Property element)

891

** **Description:** The property {property} of the class {className}.

892

** **Status codes:**

893

*** 200: If the request was successful.

894

*** 401: If the user is not authorized.

== Job resources ==

A job is identified by an ID (##jobId##) which is a list of strings. In the REST URL, you have to represent the ID with a list of strings separated by ##/##. (eg: ##refactoring/delete/11451##).

899

900

=== /jobstatus/{jobId} {{info}}Since 7.2M3{{/info}} ===

901

902

* **HTTP Method:** GET

903

** **Media types:**

904

*** application/xml (JobStatus element)

905

** **Description:** status of a job

906

** **Status codes:**

907

*** 200: If the request was successful.

908

*** 404: If the job status has not been found

909

910

=== /joblog/{jobId}[?level~={error,warn,info,debug,trace}][?fromLevel~={error,warn,info,debug,trace}] {{info}}Since 7.2M3{{/info}} ===

911

912

* **HTTP Method:** GET

913

** **Media types:**

914

*** application/xml (JobLog element)

915

** **Description:** log of a job

916

** **Status codes:**

917

*** 200: If the request was successful.

918

*** 404: If the job status has not been found

919

920

== Other resources ==

921

922

=== /wikis/{wikiName}/modifications[?start~=offset&number~=n&date~=t] ===

923

924

* **HTTP Method:** GET

925

** **Media types:**

926

*** application/xml (Modifications element)

927

** **Description:** The list of the latest modification made to the wiki {wikiName} starting from time t (t is expressed in milliseconds from 1970 of the starting date)

928

** **Status codes:**

929

*** 200: If the request was successful.

930

*** 401: If the user is not authorized.

= Custom resources =

It's possible to easily add any REST resource by registering a ##org.xwiki.rest.XWikiResource## java component on your wiki (see [[Component guide>>DevGuide.WritingComponents]] for more details).

935

936

937

package org.xwiki.contrib.rest;

938

939

import javax.ws.rs.DefaultValue;

940

import javax.ws.rs.GET;

941

import javax.ws.rs.Path;

942

943

import org.xwiki.component.annotation.Component;

944

import org.xwiki.rest.XWikiResource;

945

946

@Component("org.xwiki.contrib.rest.HelloWordResource")

947

@Path("/myresources/{myresourcename}")

948

class HelloWorldResource extends XWikiResource {

949

@GET

950

public String get(@PathParam("myresourcename") @DefaultValue("world") String myresourcename)

951

{

952

return "Hello " + myresourcename;

}

}

The name of the component has to be the class FQN.

958

959

You can find more examples on [[this page>>https://github.com/xwiki/xwiki-platform/tree/master/xwiki-platform-core/xwiki-platform-rest/xwiki-platform-rest-server/src/main/java/org/xwiki/rest]].

960

961

Starting from release 4.3M2, the RESTful API modules have been refactored so that now resource declarations are available in a separate module.

962

This means that all the information about resources, i.e., URI Paths, supported methods, query parameters, and so on, are available to module developers without having to include the big REST Server module.

963

964

Clients willing to access/use the REST API can then declare a dependency on xwiki-platform-rest-api and have all this information available for interacting with it. There are two use cases for this:

965

966

* Another platform module that wants to generate responses with links to existing resources.

967

* HTTP clients that wants to make requests to the RESTful API.

968

969

The xwiki-platform-rest-api module can be also seen as an authoritative reference for the REST API.

970

971

= Generate a REST URL for a resource =

972

973

If you need to generate a REST URL as String for a resource inside a script, you can use the REST script services:

974

975

976

## Return a relative URL String unless the reference wiki is different from the current wiki

977

$services.rest.url($entityReference)

978

979

## Force returning an external form URL String, false as second parameter would have the same effect that the previous call

980

$services.rest.url($entityReference, true)

981

982

983

Where ##$entityReference## could be:

984

985

* a ##DocumentReference##

986

* a ##SpaceReference##

987

988

We plan to add more supported entities in the future (ObjectReference, ClassReference, etc...).

989

990

= Using the RESTful API =

991

992

== Highlevel description and tutorial for a basic usage of the RESTful API ==

993

994

See [[this tutorial>>http://blog.fabio.mancinelli.me/2011/03/07/XWikis_RESTful_API.html]] by Fabio Mancinelli.

995

996

== Creating an XWiki Object ==

997

998

In this example we will use the [[curl>>http://curl.haxx.se/]] utility as the HTTP client.

999

1000

Imagine that you want to create on the page Test.Test a new object of the class XWiki.TestClass, supposing that the class has a property called ##text##.

1001

1002

So, on the command line, you have to do the following:

1003

1004

1005

$ curl -u Admin:admin

1006

-X POST

1007

-H "Content-type: application/xml"

1008

-H "Accept: application/xml"

1009

-d "@test.xml"

1010

http://localhost/xwiki/rest/wikis/xwiki/spaces/Test/pages/Test/objects

1011

1012

1013

where ##test.xml## is:

<className>XWiki.TestClass</className>

1018

1019

<value>Whatever you want to put here</value>

</property>

</object>

Alternatively you can use the less verbose ##application/x-www-form-urlencoded format##:

1025

1026

1027

$ curl -u Admin:admin

1028

-X POST

1029

-H "Content-type: application/x-www-form-urlencoded"

1030

-H "Accept: application/xml"

1031

-d "@test.txt"

1032

http://localhost/xwiki/rest/wikis/xwiki/spaces/Test/pages/Test/objects

1033

1034

1035

where ##test.txt## contains something like:

1036

1037

1038

className=XWiki.TestClass&property#test=Whatever+you+want

1039

1040

1041

Or, better, you can use directly curl to specify these parameters

1042

using multiple ##-d## switches:

1043

1044

1045

$ curl -u Admin:admin

1046

-X POST -H "Content-type: application/x-www-form-urlencoded"

1047

-H "Accept: application/xml"

1048

-d "className=XWiki.TestClass"

1049

-d "property#test=Whatever you want"

1050

http://localhost/xwiki/rest/wikis/xwiki/spaces/Test/pages/Test/objects

1051

1052

1053

The advantage of the second approach is that curl will take care of url-encode your content, while if you send a file you are responsible for this.

=== Remarks: ===

* In the ##application/x-www-form-urlencoded## format the "property#" is a standard immutable prefix that is used to distinguish attributes referring to property values from the attributes referring to the object. For example if we had ##className=XYZ&Text=FOO## we would have had an ambiguity on ##className## because we couldn't understand if ##className## is a property of the object to be set to XYZ or an attribute that describes the object itself (i.e., its metadata like the ##className##). By having the ##property### prefix this ambiguity is resolved.

1058

1059

* The information you get back when you retrieve an object (i.e., all

1060

the ##<attribute>## elements) are useful when clients need to understand the type of data contained in an object (e.g., when they want to display it). They are not necessary when creating an object because the system already has this information. That's why the XML to be sent is smaller. Actually the only information needed is the ##<className>## and a set of ##<property name="..."><value>## elements.

1061

1062

* How do you know what kind of information you can send with the XML? You can discover it by using the class description URI. If you go to ##http:~/~/localhost:8080/xwiki/rest/wikis/xwiki/classes ## you will get a list of all the classes defined in the Wiki. By looking at this you will understand what are the properties defined by each class, their types and attributes. In that way you will know what you're allowed to put in the ##<property><value>## elements of the XML you send.

= Examples =

== Getting the list of users ==

1067

1068

Since Users are stored as Objects, you can do a search of the type ##XWiki.XWikiUsers##. For example:

1069

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1071