How do I get all the list of assets present in the AEM DAM - aem-6

Question

We have assets api to fetch the list, but for that we need to provide AEM user credentials.
Do we have any interface, to fetch all the assets list from the dam just the way get all the pages using page manager.

Answer 1

For this, you can use JCR's QueryManager API and your specific query in conjunction.
Below is a sample servlet which lists all the Assets below path - /content/dam/we-retail/en/features
import javax.jcr.Session;
import javax.jcr.query.Query;
import javax.jcr.query.QueryManager;
import javax.jcr.query.QueryResult;
import javax.jcr.query.Row;
import javax.jcr.query.RowIterator;
import javax.servlet.Servlet;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.servlets.HttpConstants;
import org.apache.sling.api.servlets.SlingSafeMethodsServlet;
import org.osgi.service.component.annotations.Component;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
#Component(immediate = true, service = Servlet.class, property = { "sling.servlet.methods=" + HttpConstants.METHOD_GET,
"sling.servlet.paths=" + "/bin/learning/assetlister" })
public class AssetListerServlet extends SlingSafeMethodsServlet {
// Generated serialVersionUID
private static final long serialVersionUID = 7762806638577908286L;
// Default logger
private final Logger log = LoggerFactory.getLogger(this.getClass());
// Instance of ResourceResolver
private ResourceResolver resourceResolver;
// JCR Session instance
private Session session;
#Override
protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response) {
try {
// Getting the ResourceResolver from the current request
resourceResolver = request.getResourceResolver();
// Getting the session instance by adapting ResourceResolver
session = resourceResolver.adaptTo(Session.class);
QueryManager queryManager = session.getWorkspace().getQueryManager();
String queryString = "SELECT * FROM [dam:Asset] AS asset WHERE ISDESCENDANTNODE(asset ,'/content/dam/we-retail/en/features')";
Query query = queryManager.createQuery(queryString, "JCR-SQL2");
QueryResult queryResult = query.execute();
response.getWriter().println("--------------Result-------------");
RowIterator rowIterator = queryResult.getRows();
while (rowIterator.hasNext()) {
Row row = rowIterator.nextRow();
response.getWriter().println(row.toString());
}
} catch (Exception e) {
log.error(e.getMessage(), e);
} finally {
if (resourceResolver != null) {
resourceResolver.close();
}
}
}
}
Similary using your specific requirement, you can use this logic in a component, service etc. I hope this helps.

Answer 2

If you are looking for a python solution, here is a python tool that I created to connect to AEM DAM and perform most DAM operations, including listing of all DAM assets or assets under a given path