How to make DATAPUMP API history

I'm doing backup DATAPUMP every day.

I want to know how to make datapump status history.

so I'm considering datapump API.

I know doing backup by datapump api. but I don't know how to make pumpt status history.

I want to make datapump result table or show the result in alert.log.

How can I do that?

I'm refering to blog (https://ilmarkerm.eu/blog/2013/04/sample-code-using-datapump-api-for-metadata-and-data-filtering/

I was looking for PL/SQL examples to use metadata and data filtering in datapump API, but I didn’t find any. So here is one example. It uses table reload_dev_tables to specify what schemas/tables should be exported using data pump and what where clause should be set.