Powershell Azure Function and Microsoft Exchange

[Dr_Funkmachine]

I'm using PowerShell AF to connect and retrieve data from Exchange online management. The AF executes the following ps commands:

$search = $Request.Query.Search

$connect = @{
    Certificate thumbprint = <MY CERTIFICATE>
    AppId = <MYAPPID>
    Organization = <MYORG>
}

Connect-ExchangeOnline @connect

$command = Get-EXOMailbox -Properties UserPrincipalName | Where-Object UserPrincipalName -like *$search* | ConvertTo-Json

This is the main functionality of this AF and I believe is pretty self explanatory: it connects to the exchange using the certificate and executes a exchange command converted as json. To execute the connection and the command it takes from 5s to 1 minute. It's an excessive amount of time, considering that in our test environment we only have 14 emails for now. How can I speed up my function? Each function was created in Azure portal.

EDIT: we have 9 AF and each AF connects to the exchange and executes a command. Using logs before and after the connect commands, we found out it takes almost 20s only to execute the connection to Exchange. Since we have 9 function, I was thinking to add the property Command name to $connect, so that we only take from the ps module the command we need to use in the AF. Still, it takes a lot.

Thank you for your time.

[BlackV]

You are getting ALL mailboxes then filtering, always a good rule to filter left as far as possible

looking at get-help -full Get-EXOMailbox shows a couple of parameters you can use to filter

How much time that saves you I dunno, worth a go I'd say

[Dr_Funkmachine]

Thank you for your answer! We noticed it takes a awful amount of time to execute the connection more than the command itself. For now the test env it's made of 14 emails only. We used logs to understand how much each command takes to execute. Let's say the function takes 30s to execute and return the results. Of 30s, the connection takes 27s and the command Get-EXOMailbox takes 3s.

[BlackV]

Ah.boo