!!!1. Sharepoint Microsoft Graph REST API based integration.\\
\\
__!!!Constraint:__ Microsoft Graph REST API does not support stream upload. In order to integrate with CrushFTP the files are temporary stored as local file (CrushFTP install folder/sharepoint/) during the upload.\\
\\
Go to the the Microsoft azure portal: [https://azure.microsoft.com/en-us/features/azure-portal]/\\
\\
__Application registration: __Go to the App registrations and click on New registration:\\
\\
[attachments|new_registration.png]\\
\\
Name it. Select the Multitenant and personal Microsoft accounts type. The redirect url must ends with: register_microsoft_graph_api/. Then click on register.\\
\\
[attachments|register_app.png]
\\
__API permission :__ You also need to provide permission for the Microsoft Graph. Go to the Api permission. Click on Add permission, select Microsoft Graph. Choose Delegated permission and add the "Files.ReadWrite.All" permission:\\
\\
[attachments|permission_microsoft_graph.png]\\
[attachments|permission_final.png]\\
\\
__Client id : __ You can find it at Azure portal -> App Registration -> Overview:\\  
\\
[attachments|client_id.png]\\
\\
__Secret key :__ A new client secret needs to be created as well. Go to the "Certificate & secrets" and generate a new secret key. Click on New client secret.\\
\\
[attachments|new_secret.png]\\
[attachments|secret_value.png]\\
\\
__SharePoint remote item settings:__\\
\\
__!!! CrushFTP admin page url must match with the redirect url.__ In our example : http://localhost:9090\\
\\
Select SharePoint item type click on "Get Refresh Token" button. Provide the Client ID and Client Secret, and Tenant (in almost all case it is just: common).\\
\\
[attachments|remote_item_settings.png]\\
\\
Click on "OK" button, log in with your azure credentials, allow CrushFTP to have access to your SharePoint files. After that the form will disappear and the username and password will be filled. Done.\\
\\
[attachments|remote_item_done.png]\\
\\
__Sharepoint specific settings:__\\
\\
[attachments|remote_item_sharepoint_specific_settings.png]\\
\\
__Site id__ : The sharepoint domain name.\\
__Site Path__ : The path of the SharePoint site. It should start and end with slash.\\
__Drive name__ : Each SharePoint site has document library where the site related files are stored. See [https://support.microsoft.com/en-us/office/what-is-a-document-library-3b5976dd-65cf-4c9e-bf5a-713c10ca2872] Provied it's name\\
__Folder__ : Relative path of the document library of the sharepoint site.
\\
!!! 2. SharePoint REST service API based integration\\
\\
More info : [https://docs.microsoft.com/en-us/sharepoint/dev/sp-add-ins/get-to-know-the-sharepoint-rest-service?tabs=csom]\\
__!!!Constraint:__
1. On newer Sharepoint (after 2019) Grant App permission is disabled by default. To enable Custom Application APP Authentication run the following PowerShell commands:\\
{{{
Install-Module -Name Microsoft.Online.SharePoint.PowerShell
$adminUPN="<SharePoint administrator account>"
$orgName="<name of your Office 365 organization>"
$userCredential = Get-Credential -UserName $adminUPN -Message "Type the password."
Connect-SPOService -Url https://$orgName-admin.sharepoint.com -Credential $userCredential
set-spotenant -DisableCustomAppAuthentication $false
}}}
2. Advantage : No temporary stored local file during the upload. 
\\