how to implement $filter query option in SAP OData service?

Query Options and HTTP Status Code

OData and SAP Netweaver Gateway. Part XI. Query Options & HTTP Status Code Summary

Do you know how to build Query Options in OData Services?

Did you know, for some Queries, we do not need to write any code while for some we have to implement some code?

If you get HTTP status code error 403, then where should you look for error resolution? Client side or Server Side? i.e. SAPUI5 side or SAP Backend side?

Please check this practical article on OData Services Query Options and HTTP Status Codes.