SharePoint Online CDN

The below content is presented so you can quicly understand Office365 CDN and execute the related commands and start enjoying the benefits of the CDN feature in your SharePoint Online environment.

Problem

There are a couple of problems if third party libraries such as moment.js, datatable.js, lodash.js, ag-grid.js and many more are used. These libraries are maintained in each site collection because there are different sets of users and permissions granted only to respective departments. With permission restriction, it is not possible to share the files across site collections.

Approaches

Separate site collection can be provisioned and common libraries can be accesed and maintained.
Buy an Azure CDN storage and maintain common assets - extra cost to maintain.
In-built SharePoint Online CDN which was proposed by Microsoft and current available in SharePoint Online environment.

Since SharePoint Online CDN (Office365 CDN) is currently avaible, I have complied the list of features and PowerShell commands to start enjoying :)

Feature	Public	Private
Default folders	/MASTERPAGE /STYLE LIBRARY	/USERPHOTO.aspx /SITEASSETS
Deleted files are accessible up to	30 days	1 hour
Can CDN be consumed from outside SharePoint?	No	No
Default File Types	.css, .eot, .gif, .ico, .jpeg, .jpg, .js, .map, .png, .svg, .ttf, and .woff	.gif, .ico, .jpeg, .jpg, .js, and .png
Files render from	https://privatecdn.sharepointonline.com /<<tenantname.sharepoint.com>> /sites/<<sitename>> /<<libraryname>>/<<item>>	https://public.sharepointonline.com /<<tenantname.sharepoint.com>> /sites/<<sitename>> /<<libraryname>>/<<item>>?xxxxxx
Once files are published to library, how soon can assets be accessed ?	15 Min	15 Min
Is there any cost to use Office365 CDN?	No	No

To run the below list of commands, you need to install SharePoint Online Management Shell and run the following commands.

Connect SharePoint Online from PowerShell Window

$adminUPN="<the full email address of a SharePoint Online global administrator account, example: [email protected]>"
$orgName="<name of your Office 365 organization, example: srinivasnarula>"
$userCredential = Get-Credential -UserName $adminUPN -Message "Type the password."
Connect-SPOService -Url https://$orgName-admin.sharepoint.com -Credential $userCredential

Get status of private CDN

Get-SPOTenantCdnEnabled -CdnType private

Enable private CDN in tenant

Set-SPOTenantCdnEnabled -CdnType private

Add new private CDN Origin

Add-SPOTenantCdnOrigin -CdnType private -OriginUrl sites/<<SiteName>>/<<LibraryName>>

Remove private CDN Origins

Remove-SPOTenantCdnOrigin -CdnType private -OriginUrl sites/<<SiteName>>/<<LibraryName>>

List all private CDN Origins

Get-SPOTenantCdnOrigins -CdnType private

Disable private DN Origin

Set-SPOTenantCdnEnabled -CdnType private -Enable $false

To use the public CDN, replace private with public keywords in the above commands.