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(PowerShell) Outlook -- Get Number of Emails

Gets the number of emails in an Outlook folder. This uses the OData $count system query option. See OData System Query Option $count for general information.

This example first gets the combined total number of messages across all folders.

Note: This example requires Chilkat v9.5.0.68 or greater.

This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com

Chilkat .NET Downloads

Chilkat .NET Assemblies

Chilkat for Mono

[Reflection.Assembly]::LoadFile("C:\myAssemblies\ChilkatDotNet47.dll")

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$http = New-Object Chilkat.Http

# Use your previously obtained access token here:
# See the following examples for getting an access token:
#    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
#    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
#    Refresh Access Token (Azure AD v2.0 Endpoint).
#    Refresh Access Token (Azure AD Endpoint).

$http.AuthToken = "MICROSOFT_GRAPH_ACCESS_TOKEN"

$sbResponse = New-Object Chilkat.StringBuilder

# This gets the combined total number of emails in all folders.
$success = $http.QuickGetSb("https://graph.microsoft.com/v1.0/me/messages/$count",$sbResponse)
if (($success -ne $true) -and ($http.LastStatus -eq 0)) {
    $($http.LastErrorText)
    exit
}

$json = New-Object Chilkat.JsonObject
$json.EmitCompact = $false

# If the status code was not 200, then it failed and the response is likely JSON:
if ($http.LastStatus -ne 200) {
    $("Status code = " + $http.LastStatus)
    $json.LoadSb($sbResponse)
    $($json.Emit())
    $("Failed.")
    exit
}

# A success response payload contains just the integer value (it is not JSON)
$("Combined Total Number of Emails = " + $sbResponse.GetAsString())
$("--")

# ---------------------------------------------------------------------------
# To get the number of emails in a particular folder, we need to use the folder id.
# 

# In this example, we'd like to get number of messages in the folder "/Inbox/abc",
# but we must specify the corresponding folder_id.  The best way to do this is to create
# a local map of folderPaths-to-folderIds.
# We'll use the map created by this example:  Create Outlook Folder Map)
$htFolderMap = New-Object Chilkat.Hashtable
$sbMap = New-Object Chilkat.StringBuilder
$sbMap.LoadFile("qa_data/outlook/folderMap.xml","utf-8")
$htFolderMap.AddFromXmlSb($sbMap)

# Get the ID for the "/Inbox/abc" folder:
$folderId = $htFolderMap.LookupStr("/Inbox/abc")
if ($htFolderMap.LastMethodSuccess -ne $true) {
    $("Folder ID not found")
    exit
}

$http.SetUrlVar("folder_id",$folderId)

# Send the request get the folder information.
# In this case we are NOT using the $count system query option.
$success = $http.QuickGetSb("https://graph.microsoft.com/v1.0/me/mailFolders/{$folder_id}",$sbResponse)
if (($success -ne $true) -and ($http.LastStatus -eq 0)) {
    $($http.LastErrorText)
    exit
}

$json.LoadSb($sbResponse)
$($json.Emit())
$("--")

if ($http.LastStatus -ne 200) {
    $("Status code = " + $http.LastStatus)
    $("Failed.")
    exit
}

# The successful JSON response looks like this;

# 	{
# 	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/mailFolders/$entity",
# 	  "id": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAAA=",
# 	  "displayName": "abc",
# 	  "parentFolderId": "AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA",
# 	  "childFolderCount": 2,
# 	  "unreadItemCount": 0,
# 	  "totalItemCount": 3
# 	}
# 

# Get the integer value from the JSON like this:
$totalItemCount = $json.IntOf("totalItemCount")
$("totalItemCount = " + $totalItemCount)

$childFolderCount = $json.IntOf("childFolderCount")
$("childFolderCount = " + $childFolderCount)

# etc..

 

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