Skip to main content

Major update to my Exch-Rest Powershell Module for accessing Office365 and Exchange 2016 Mailboxes via REST

For about a year I've being working on a PowerShell Module for accessing the new REST API for Office365 (the Graph API) and Exchange 2016. I've been experimenting and listening to the various feedback I've been getting and finally have an update to share that addresses a lot of the useability issues (okay it was just too developer orientated).

Application registrations

Still probably the biggest stumbling block is not having an application registration, I now have a menu that allows to you use various default registrations for testing and also to save a default registration that you create. This means once you have your own registration setup you can save the ClientId so it will be used as the default when you next use the module.

Aliasing

A failure in proper planning when I initially created the module meant I didn't use a specific alias for the cmdlets in the module which meant it can cause a lot of conflicts if you have other modules loaded. With the new version all cmldets have a -EXR moniker.

Token Caching

With previous versions of the module you basically would authenticate and create an access token and store that in a local variable which you then had to pass into each of the cmdlets using the -AccessToken parameter along with the MailboxName. This meant a lot of typing and really broke the useability flow without really providing any security benefits. With the new module while all these old behaviours are still valid there is now a Connect-EXRMailbox cmdlet which is the new entry point cmdlet which will store the token and the name of the mailbox associated with the Token in a script variable (encrypted of course) but accessible by the module. This means you can run most of the cmdlets without specifying a Mailbox or Access Token if you just want to return details about the current mailbox that has been authenticated. Also when it comes to using Directory or Reporting cmdlets it eliminates the need for MailboxName which used mandatory parameter on all cmdlets. 

New Getting Started Guide 

With this type of project documentation is the hardest thing as its the least interesting and more time consuming things to get correct. I've written a new getting Started Guide for people that haven't used the module before. The old readme guide is still valid so if your looking to use App Tokens this going to be useful

New Cmdlets

I have a lot of new cmldets most aren't documented in anyway but I hope to put these more into Context in the new year on the blog and on GitHub. Things like accessing the Reporting API's is interesting which I've covered briefly in the new Getting Started guide.

The new module Exch-Rest is available from the PowerShell Gallery here or the source code which will contains all the latest code is available on GitHub here.

 Feedback and Contributions

As always I welcome any feedback or contributors who want to improve the module

Popular posts from this blog

Export calendar Items to a CSV file using EWS and Powershell

Somebody asked about this last week and while I have a lot of EWS scripts that do access the Calendar I didn't have a simple example that just exported a list of the Calendar events with relevant information to a CSV file so here it is. I've talked on this one before in this howto  but when you query the calendar folder using EWS you need to use a CalendarView which will expand any recurring appointments in a calendar. There are some limits when you use a calendarview in that you can only return a maximum of 2 years of appointments at a time and paging will limit the max number of items to 1000 per call. So if you have a calendar with a very large number of appointments you need to break your query into small date time blocks. In this example script I'm just grabbing the next 7 days of appointments if you want to query a longer period you need to adjust the following lines (keeping in mind what I just mentioned) #Define Date to Query $StartDate = (Get-Date) $EndDate

Writing a simple scripted process to download attachmentts in Exchange 2007/ 2010 using the EWS Managed API

Every complicated thing in life is made up of smaller simpler building blocks, when it comes to writing a script (or any code really) the more of these little building blocks you have to figure out the more the process of solving a problem can become bewildering. The Internet generally provides you with lots of half eaten sandwiches of information something someone else has taken a bite out but a lot of the time half done, and as with any code its usefulness declines over time as new and better API's and methods are derived. In this post I'm going to go through a simple scripted process that hopefully covers a few more of these smaller building blocks that you might face when asked to come up with a simple costless solution to perform an automated business function with a script. So the process im going to look at is one that comes up a lot and that is you have an Email that comes into to certain mailbox every day with a certain subject in my case "Daily Export" this

EWS Managed API and Powershell How-To series Part 1

I thought I'd start the year with a series of posts that goes back over the basics of using the EWS Managed API from Powershell and provides a modular remarked example that you can easily cut and paste to build your own scripts. Along the way in this series I'll show a whole bunch of examples around specific things. As a starting point for versions this will be Powershell Version 2.0  and the EWS Managed API 1.1 (which will soon change to 1.2 once released) http://www.microsoft.com/download/en/details.aspx?id=13480. The starting point for any EWS script your going to write is connecting to Exchange for which there are three important pieces of information you will need. Firstly you need to know the version of Exchange your running in this script its going to be held in the following variable $ExchangeVersion = [Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchange2010_SP1 Other valid values for Exchange 2007 would be $ExchangeVersion = [Microsoft.Exchange.Web
All sample scripts and source code is provided by for illustrative purposes only. All examples are untested in different environments and therefore, I cannot guarantee or imply reliability, serviceability, or function of these programs.

All code contained herein is provided to you "AS IS" without any warranties of any kind. The implied warranties of non-infringement, merchantability and fitness for a particular purpose are expressly disclaimed.