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Open Collaboration Services

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OCS logo color
OCS API logo

The Open Collaboration Services (OCS) is an open and vendor-independent REST and WebDAV based API designed to make it easy to connect apps to a content collaboration platform.[1]

The OCS API provides basic file handling features such as file access, sharing, versioning and commenting. It also supports communication (chat, video calls), calendaring, tasks and more.

The OCS API allows for the integration of web communities and web-based services into desktop and mobile applications. It allows the exchange of relevant data from a social network between the site and clients such as other websites and applications or widgets running locally on the user's machine or mobile device. The protocol is designed so that all applications can access multiple services providing OCS APIs.

The initial API design was done by openDesktop.org as part of the Social Desktop, especially as a cross-desktop backend provider.[2] The API was standardised by freedesktop.org so that third-party providers are able to implement OCS API. Currently, Nextcloud implements and develops the OCS API, with parts also supported in various other projects and by many third party apps and tools.[3]

Non-KDE environments using the API in the past included the Maemo Downloads application store[4] and Apps for MeeGo.[5]

Modules

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The OCS API documentation [6] lists several modules. Here are the key OCS modules:

  • User metadata
  • Capabilities
  • OCS Share
  • OCS Sharee
  • OCS Status
  • OCS Recommendations
  • OCS User Preferences
  • OCS Translation API
  • OCS Text Processing
  • OCS Text-To-Image
  • OCS Task Processing
  • OCS Out-of-office


OCS API Viewer

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The OCS API Viewer [7] is a Nextcloud app where you can interactively discover APIs and try them out on your own instance from the browser.

For example, if you wanted to update a (file) share, you can go to file_sharing –> shareapi –> update a share and add the file ID. Hit “Send API request” and you can see the response from the server, and how the share was created. On top of that, it shows you code snippets for many different programming languages for executing this request.

References

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  1. ^ "About the OCS API". 2024-07-14.
  2. ^ "Presentation of the Open Collaboration Services and of the Social Desktop on dot.kde.org". May 2009.
  3. ^ "About the OCS API". 2024-07-14.
  4. ^ "Henri Bergius on Akademy, MidGard, Open Collaboration Services and GeoClue". KDE. 2010-07-23.
  5. ^ "Apps for MeeGo service". 2012-02-13.
  6. ^ "OCS API documentation". nextcloud.com. Retrieved 2024-07-14.
  7. ^ "Integrate Nextcloud into your app with the help of the OCS API Viewer". nextcloud.com. 14 August 2023. Retrieved 2024-07-14.
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