How do we read the filename when the file is uploaded in the azure storage blob and then extract this name and use grok filter command to save it in elastic search

Hi Team,

Requirement:
To read the filename of the file getting processed by logstash and put it in elastic search. The input is azure storage blob. So need help in writing the configuration such that when the logstash processes a file from azure storage blob, it reads the filename and passes it to elastic search.