Upload Files to Sharepoint Library using an Application via PowerShell
Help please, I have the below script, which has been cobbled together from various elements of googling and AI. $siteUrl = "https://mydomainname.sharepoint.com/sites/Software" $libraryName = "Shared Documents" $filePath = "C:\temp\test.txt" $appId = "myappid" $tenantId = "mytenantid" $clientSecret = "mysecretkey" #mysecretkey # Acquire Token $tokenEndpoint = "https://login.microsoftonline.com/$tenantId/oauth2/token" $tokenBody = @{ grant_type = "client_credentials" client_id = $appId client_secret = $clientSecret resource = "https://graph.microsoft.com" } $tokenResponse = Invoke-RestMethod -Method Post -Uri $tokenEndpoint -Body $tokenBody $subfolder = "Calls" $fileEndpoint = "$siteUrl/_api/web/lists/getbytitle('$libraryName')/RootFolder/SubFolders('$subfolder')/Files/Add(url='$(Split-Path $filePath -Leaf)')" # Upload File $headers = @{ Authorization = "Bearer $($tokenResponse.access_token)" }##$fileEndpoint = "$siteUrl/_api/web/lists/getbytitle('$libraryName')/RootFolder/Files/Add(url='$(Split-Path $filePath -Leaf)')" Invoke-RestMethod -Uri $fileEndpoint -Headers $headers -Method Post -InFile $filePath -ContentType "application/octet-stream" From what I can see I am authorising successfully with the appid, secret and tenantid and I get a bearer token back from 365. I have assigned Application permissions to SharePoint for my app and consented at the admin level. When I run the script I get the following error Invoke-RestMethod : {"error_description":"Exception of type 'Microsoft.IdentityModel.Tokens.AudienceUriValidationFailedException' was thrown."} At line:1 char:1 + Invoke-RestMethod -Uri $fileEndpoint -Headers $headers -Method Post - ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebExc eption + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand Can anyone help in pointing me in the right direction on this? I maybe totally off mark as I'm not an advanced coder. My aim is to have a script running on a VM which will automatically start and have a scheduled task running a PowerShell script which can authenticate to 365, run reports and then upload these automatically to a SharePoint site. I have tried so many options but each method keeps generating an error. I have spent several days on this and I'm no further on. I'm hoping this is possible and that someone can offer my some help. TIA Jaq