====== GWDG CDSTAR ======

{{:en:services:storage_services:gwdg_cdstar:cdstar-logo.png|}}

CDSTAR (__C__ommon __D__ata __St__orage __AR__chitecture) is a head-less data repository and framework for research data management applications. The goal is to provide a rich set of common functionality (scalable storage, publishing, archiving, metadata annotations, access management and search) as a web-service for other applications to build upon, and to simplify the rapid development of highly customized tools and workflows for data-heavy research applications.

CDSTAR is developed at GWDG as open-source (apache licence 2.0) and offered to our customers as a fully managed service (including storage, backup and long-term archiving), or as a self-hosted solution for individual use-cases. Please [[https://www.gwdg.de/support|contact support]] for details.

==== Getting Stated ====

Source code, binary builds and documentation for recent CDSTAR versions (3.x) can be found at [[https://cdstar.gwdg.de/|cdstar.gwdg.de]]. We provide a public [[https://cdstar.gwdg.de/demo/|API demo]] (username: ''test'', password:''test'') for quick tests. Please note that the demo instance is wiped clean at least once a day. You can also run a local or self-hosted instance as described [[https://cdstar.gwdg.de/docs/dev/|here]], or contact [[https://www.gwdg.de/support|support]] for a hosted instance.

==== Client Libraries ====

All functionality is provided as a simple language-independent [[https://cdstar.gwdg.de/docs/dev/#endpoints|web API]], so any generic HTTP client library or even ''curl'' would be suitable to integrate CDSTAR with new or existing applications. Specialized client libraries and command-line tools are available for python3 (see [[https://gitlab.gwdg.de/cdstar/pycdstar3|pycdstar3]]) and Java. Other language integrations may also be available by third-party.

==== Legacy Versions ====

The legacy version of CDSTAR (version 2.x) is still supported for existing projects. Source code is available on request. Documentation can be found [[https://www.gwdg.de/documents/20182/31188/gwdg-bericht-78.pdf|here]].