apps/dnet-exporter-api/src/main/java/eu/dnetlib/openaire/community/CommunityApiController.java

@@ -221,6 +221,22 @@ public class CommunityApiController extends AbstractDnetController {
 		communityService.removeCommunityProjects(id, projectIdList);
 	}
 
+	@RequestMapping(value = "/community/{id}/funders", produces = {
+		"application/json"
+	}, method = RequestMethod.GET)
+	@Operation(summary = "get the funders of the projects of a community", description = "get the funders of the projects of a community", tags = {
+		C_PJ, R
+	})
+	@ApiResponses(value = {
+		@ApiResponse(responseCode = "200", description = "OK"),
+		@ApiResponse(responseCode = "404", description = "not found"),
+		@ApiResponse(responseCode = "500", description = "unexpected error")
+	})
+	public List<String> getCommunityFunders(@PathVariable final String id)
+		throws CommunityException {
+		return communityService.getCommunityFunders(id);
+	}
+
 	@RequestMapping(value = "/community/{id}/contentproviders", produces = {
 		"application/json"
 	}, method = RequestMethod.GET)

apps/dnet-exporter-api/src/main/java/eu/dnetlib/openaire/community/CommunityService.java

@@ -612,4 +612,9 @@ public class CommunityService {
 		}
 	}
 
+	@Transactional
+	public List<String> getCommunityFunders(final String id) {
+		return dbProjectRepository.findFundersByCommunity(id);
+	}
+
 }

apps/dnet-exporter-api/src/main/java/eu/dnetlib/openaire/community/repository/DbProjectRepository.java

@@ -1,10 +1,13 @@
 package eu.dnetlib.openaire.community.repository;
 
+import java.util.List;
+
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+import org.springframework.data.jpa.repository.Query;
 
 import eu.dnetlib.openaire.community.model.DbProject;
 import eu.dnetlib.openaire.community.model.DbProjectPK;
@@ -16,4 +19,7 @@ public interface DbProjectRepository extends JpaRepository<DbProject, DbProjectP
 
 	void deleteByCommunity(String id);
 
+	@Query(value = "select distinct project_funder from community_projects where community = ?1 order by project_funder", nativeQuery = true)
+	List<String> findFundersByCommunity(String id);
+
 }