Architecture dependencies

Architecture

Application DL4DH Feeder consists of the following components:

Name	Description	Source Code	Dependencies
API (Feeder API)	Backend application	Directory api	Kramerius, DL4DH Kramerius+, PostgreSQL, Feeder Solr, Keycloak
Web (Feeder Web)	Frontend client	Directory web	Feeder API, Keycloak
Solr (Feeder Solr)	Search platform	Directory solr	-

Dependencies

Dependencies mentioned in the last column of the previous table, that are not named in the table, can be found at these addresses:

• Kramerius: https://github.com/ceskaexpedice/kramerius/
• DL4DH Kramerius+: https://github.com/LIBCAS/DL4DH-Kramerius-plus/
• Keycloak: https://www.keycloak.org/
• PostgreSQL: https://www.postgresql.org/

Minimum version needed for dependencies:

Dependency	Minimum version
Kramerius	v5
DL4DH Kramerius+	the latest
Keycloak	v16
PostgreSQL	v12