SharePoint Online: Get List Items from Folder using PowerShell

Requirement: Get list items from a folder in SharePoint Online.

SharePoint Online: PowerShell to Get List Items in a Folder

#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"

Function Get-ListItemsFromFolder()
{
    param
    (
        [Parameter(Mandatory=$true)] [string] $SiteURL,
        [Parameter(Mandatory=$true)] [string] $ListName,
        [Parameter(Mandatory=$true)] [string] $FolderURL
    )
    Try {
        #Setup Credentials to connect
        $Cred = Get-Credential
        $Cred = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.UserName,$Cred.Password)

        #Setup the context
        $Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
        $Ctx.Credentials = $Cred

        #Get the list
        $List=$Ctx.Web.Lists.GetByTitle($ListName)

        #Frame CamlQuery to retrieve the items from the Folder
        $CAMLQuery= New-Object Microsoft.SharePoint.Client.CamlQuery
        #Set relative URL of the folder
        $CAMLQuery.FolderServerRelativeUrl=$FolderURL

        #Get List Items from the Folder
        $ListItems=$List.GetItems($CAMLQuery)
        $Ctx.Load($ListItems)
        $Ctx.ExecuteQuery()

        Write-host "Total Number of Items Found:"$ListItems.Count

        #Iterate through all list items
        Foreach($Item in $ListItems)
        {
            #Get Ids for each Item
            Write-Host $item["ID"]
        }
    }
    Catch {
        write-host -f Red "Error Getting List Items from Folder!" $_.Exception.Message
    }
}

#Set Parameter Values
$SiteURL="https://crescent.sharepoint.com"
$ListName="Projects"

#Relative URL to the Folder - For Libraries, E.g: "/Documents/2018" or "/sites/sales/documents/projects/active"
$FolderURL="/Lists/Projects/Active"

#Call the function to get list items from folder
Get-ListItemsFromFolder -SiteURL $SiteURL -ListName $ListName -FolderURL $FolderURL

PowerShell to Get Files from Folder in SharePoint Online:
This time, lets retrieve all files from a given folder in SharePoint Online document library using PowerShell.

#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"

Function Get-FilesFromFolder()
{
    param
    (
        [Parameter(Mandatory=$true)] [string] $SiteURL,
        [Parameter(Mandatory=$true)] [string] $FolderURL
    )
    Try {
        #Setup Credentials to connect
        $Cred = Get-Credential
        $Cred = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Cred.UserName,$Cred.Password)

        #Setup the context
        $Ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
        $Ctx.Credentials = $Cred

        #Get the Folder and Files
        $Folder=$Ctx.Web.GetFolderByServerRelativeUrl($FolderURL)
        $Ctx.Load($Folder)
        $Ctx.Load($Folder.Files)
        $Ctx.ExecuteQuery()

        #Iterate through each File in the folder
        Foreach($File in $Folder.Files)
        {
            #Get Name for each File
            Write-Host $File.Name
        }
    }
    Catch {
        write-host -f Red "Error Getting Files from Folder!" $_.Exception.Message
    }
}

#Set Parameter Values
$SiteURL="https://crescent.sharepoint.com"
#Relative URL to the Folder - For Lists: "/Lists/ListURL/FolderURL"
$FolderURL="/Shared Documents/Documentation"

#Call the function to get list items from folder
Get-ListItemsFromFolder -SiteURL $SiteURL -FolderURL $FolderURL

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