oData - entity Create - success with additional warning message

[#1]

Hello Guys,

in my fiori app, i need to create an infotype data

			oBackEnd.create("/EmployeeRecordSet", oODataEntry, {
				success: function(oData, oResponse) {
					debugger;
					let localModel = new JSONModel(oData);
					this.getView().setModel(localModel, "Local");
					MessageToast.show(this.getText("CREATESUCCESS"));
				}.bind(this),
				error: function(oError) {
					debugger;
					MessageToast.show(this.getText("CREATEERROR"));
				}.bind(this)
			});

In the backend, as for most of "bapi" operation, you do have error message but sometimes... Warning or success message....

In my DPC_EXT -> _CREATE_ENTITY method i do retrieve correctly the message - E or W or Success whatever...

I found here https://answers.sap.com/questions/10514968/successerrorinfo-message-in-return-of-odata-servic.html a way to add the message....

      IF ex_bapiret2 IS NOT INITIAL.
        mo_context->get_message_container( )->add_message(
            iv_msg_type               = ex_bapiret2-type
            iv_msg_id                 = ex_bapiret2-id
            iv_msg_number             = ex_bapiret2-number
            iv_msg_v1                 = ex_bapiret2-message_v1
            iv_msg_v2                 = ex_bapiret2-message_v2
            iv_msg_v3                 = ex_bapiret2-message_v3
            iv_msg_v4                 = ex_bapiret2-message_v4
            iv_add_to_response_header = abap_true
               ).
        RAISE EXCEPTION TYPE /iwbep/cx_mgw_busi_exception
          EXPORTING
            message_container = mo_context->get_message_container( ).
      ENDIF.

Whatever i do - Warning message - my UI5 App finishes in the Error processes, whereas i would have expected it to finish in the success...

Is what i'm expecting realistic ? Doable ? how ?

[RalfHandl · Accepted solution]

You unconditionally raise an exception, resulting in an HTTP response code of 4xx, which UI5 interprets correctly as an error.

Don't raise the exception if ex_baipret2-type is S or I or W, then the response will have a success HTTP code of 2xx for a "harmless" bapi message.