DDB-Backend / API

The DDB Backend is the core component to access the data stored in the DDB. It provides an API to retrieve and search for data. The API and therefore all the data in the DDB is publically accessible without any restrictions. 

Currently there are two versions of the API being maintained. The API version 1 is available at https://api.deutsche-digitale-bibliothek.de/ and version 2 is available at https://api.deutsche-digitale-bibliothek.de/2/

Version 1 is provided by the DDB Backend 6.x, whereas version 2 is provided by the newly developed DDB Backend 7.x

New features are intergrated into DDB Backend 7.x only. Changes to the AIP are available in both backends. 

Links for users

further information on how to use and access the data in the DDB can be found at https://pro.deutsche-digitale-bibliothek.de/daten-nutzen

Links for developers

All the software developed for the DDB is open source and provided under the Apache Licence version 2. The sources can be found on the Bitbucket server at FIZ Karlsruhe: 

DDB Backend: https://dev.fiz-karlsruhe.de/stash/projects/DDB/repos/ddb-backend-ri/browse

API-Model: https://dev.fiz-karlsruhe.de/stash/projects/DDB/repos/api-model/browse

Docker images of the backend are provided in the repository of FIZ Karlsruhe: 

docker pull docker.dev.fiz-karlsruhe.de/ddb/ddb-backend:${VERSION}

A list of the available versions can be found here: https://dev.fiz-karlsruhe.de/artifactory/docker/ddb/ddb-backend/

Builds of the API model classes, useful when developing own (JVM-based) applications that access the DDB API can be found here: https://dev.fiz-karlsruhe.de/artifactory/libs-release-local/de/fiz/ddb/api-model/

Please also see the API compatibility matrix below.

Issue tracking

Issue tracking for this software is done in the DDB Jira instance:  

https://jira.deutsche-digitale-bibliothek.de/secure/RapidBoard.jspa?rapidView=48&projectKey=DDBBACK&view=planning&issueLimit=100#

API compatibility matrix