Simple PowerShell sample for creating an Appointment or Meeting in the Microsoft Graph.md

Simple PowerShell sample for creating an Appointment or Meeting in the Microsoft Graph

In the Graph API to create an Appointment or meeting you just need to post a JSON formatted request to the events endpoint on the calendar. eg

  POST https://graph.microsoft.com/v1.0/users('gscales@datarumble.com')/calendar/events HTTP/1.1
    AnchorMailbox: gscales@datarumble.com
    Authorization: Bearer eyJ0e
    User-Agent: Mozilla/5.0 (Windows NT; Windows NT 10.0; en-AU) WindowsPowerShell/5.1.22000.282
    Content-Type: application/json
    Host: graph.microsoft.com
    Content-Length: 922

{
    "subject": "Test",
    "body": {
      "contentType": "HTML",
      "content": "One Two"
    },
    "start": {
        "dateTime":  "2022-01-25T10:34:00.6370509+11:00",
        "timeZone": "AUS Eastern Standard Time"
    },
    "end": {
        "dateTime": "2022-01-25T10:34:00.6370509+11:00",
        "timeZone": "AUS Eastern Standard Time"
    },
    "location":{
        "displayName": "Coffee Shop"
    },
    "attendees":  [
    {
        "emailAddress":  {
                             "address":  "gscales@ddd.com",
                             "name":  "gscales@ddd.com"
                         },
        "type":  "required"
    },
    {
        "emailAddress":  {
                             "address":  "glenscales@yahoo.com",
                             "name":  "glenscales@yahoo.com"
                         },
        "type":  "required"
    }
]   

}

The following sample script provides an implementation of this along with authentication code to either create an Appointment (without attendees) or a Meeting with attendees to use this

Invoke-CreateAppointment -MailboxName gscales@datarumble.com -StartTime (Get-Date) -EndTime (Get-Date).AddHours(1) -Subject "Test" -Body "One Two" -Location "Coffee Shop"

or

Invoke-CreateMeeting -MailboxName gscales@datarumble.com -StartTime (Get-Date) -EndTime (Get-Date).AddHours(1) -Subject "Test" -Body "One Two" -Location "Coffee Shop" -Attendees $attendees

Where attendees is an array of string with the attendees eg

$attendees = @()
$attendees += "ds@datarumble.com"

Note this is just simple example that can be customzied to meet other requirement (eg different timezone, optional attendees, meeting rooms etc). The sample can be found

https://github.com/gscales/Powershell-Scripts/blob/master/Graph101/CreateEvent.ps1