Exporting all the attributes from Azure AD B2C into a csv - azure-active-directory

Question

I'm trying to export AAD users from ADB2C to a csv file. I'm able to achieve this using the graph API "graph.windows.net" and some filter conditions. But with this approach, I can only get a limit of 999 records per response and I need to get the next link to do another API call and so on...
This process is taking a long time to fetch the AAD users. Hence I tried using Power shell scripts i.e using Get-AzureADUser, using this approach I was able to get all the users within a short duration. But the issue in this approach I'm not able to get all the attributes that I get via the rest call (i.e the attribute is userIdentites).
The reason I'm looking for userIdentites is, that I can filter out the users with social logins like gmail.com or facebook.com
How can I achieve this using PowerShell scripts? or using CLI or Python?
A sample response from the Graph API -
Powershell script to get the same attributes, but I'm getting blank userIdentites, which is wrong. Expected is few users are to get social logins as shows in Graph API Response
For($i=$index; $i -lt $regexArray.Length; $i++){
$regexArray[$i] | Out-File $tempLogFile -NoNewline
$blobFileName = $fileName + $i + ".csv"
Write-Output ("Exporting Users Information in a CSV File for Surname with Regex : " + $regexArray[$i])
Get-AzureADUser -All $true | where-Object { $_.Surname -cmatch $regexArray[$i]} |
select otherMails,DisplayName,userIdentites,UserPrincipalName,Department | Export-Csv $tempfilepath -NoTypeInformation
Set-AzureStorageBlobContent -Context $context -Container $container -File $tempfilepath -Blob $blobFileName -Force
Write-Output ("Exported File Name : " + $blobFileName)
Set-AzureStorageBlobContent -Context $context -Container $container -File $tempLogFile -Blob $logFile -Force
Write-Output ("Exporting completed for Surname with Regex : " + $regexArray[$i])
}

Answer 1

public static async Task ListUsers(GraphServiceClient graphClient)
{
Console.WriteLine("Getting list of users...");
try
{
// Get all users
var users = await graphClient.Users
.Request()
.Select(e => new
{
e.DisplayName,
e.Id,
e.Identities
})
.GetAsync();
// Iterate over all the users in the directory
var pageIterator = PageIterator<User>
.CreatePageIterator(
graphClient,
users,
// Callback executed for each user in the collection
(user) =>
{
Console.WriteLine(JsonSerializer.Serialize(user));
return true;
},
// Used to configure subsequent page requests
(req) =>
{
Console.WriteLine($"Reading next page of users...");
return req;
}
);
await pageIterator.IterateAsync();
}
catch (Exception ex)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(ex.Message);
Console.ResetColor();
}
}
https://learn.microsoft.com/en-us/samples/azure-samples/ms-identity-dotnetcore-b2c-account-management/manage-b2c-users-dotnet-core-ms-graph/