GetTokenQueryAPI.ps1

#get Access Token
$body = "grant_type=authorization_code&redirect_uri=$redirectUri&client_id=$clientId&client_secret=$clientSecretEncoded&code=$authCode&resource=$resource"
$Authorization = Invoke-RestMethod https://login.microsoftonline.com/common/oauth2/token `
    -Method Post -ContentType "application/x-www-form-urlencoded" `
    -Body $body `
    -ErrorAction STOP

Write-output $Authorization.access_token
$accesstoken = $Authorization.access_token

$me = Invoke-RestMethod -Headers @{Authorization = "Bearer $accesstoken"} `
                        -Uri  https://graph.microsoft.com/v1.0/me `
                        -Method Get