You may need to write a custom Predicate to achieve it. please refer to following example - https://blogs.perficient.com/2020/11/11/case-insensitive-queries-with-the-aem-query-builder/   For like operation xpath would be something like this -  /jcr:root/content/dam/wknd/en//*[(jcr:like(fn:lower-case...

Metadata coming empty might be related to permissions. Please try with a user having elevated permissions.

Hi @Abhishekty : To take the advantage of the Oauth authentication mechanism, depending upon the use case, some custom development might be required. Please refer the below article on How to Manage the Protected AEM Resources through OAuth 2.0https://medium.com/tech-learnings/how-to-manage-the-prote...

Since your instance is running on 4503, so I am assuming it is the publish instance. By default anonymous user in Adobe Experience Manager(AEM) will have the read access to content, so the content can be accessed via publisher directly without providing any credential. and  GET /api/assets.json retr...

Here is a sample IMS Client that might help you -https://github.com/AdobeDocs/analytics-2.0-apis/blob/master/examples/jwt/java/src/main/java/io/adobe/solutions/IMSClient.java