Azure Function with Azure Topic Messages & blob Storage

Question

This is My Sample Azure topic subscription Messages . 

{"CorrelationID":"8bf652-fbcd-435-3607-8546",

"eventAction":"notify",

"eventDateTime":"2020-04-12",

"EventType":PlannedPO.refresh,

"Links"[{"href":"https://dptstorecore.blob.core.windows.integration..]

}

 

 i have to Read the Messages From ASB Topic &  get the blob storage Url from  that Msgs after that  i have to Read and extract that blob storage file and get Data .

 

Am new to Azure . how to do the above logic Using Azure Functions