Purge Cloudflare Cache using Cloudflare's API in PowerShell, learn more at https://swimburger.net/blog/powershell/powershell-snippet-clearing-cloudflare-cache-with-cloudflares-api

PurgeCloudflareCache.ps1

Function PurgeAllCloudflareCache{
    Param(
        [parameter(Mandatory=$true)]
        [string] $AdminEmail, 
        [parameter(Mandatory=$true)]
        [string] $ApiKey, 
        [parameter(Mandatory=$true)]
        [string] $ZoneId
    );

    $PurgeCacheUri = "https://api.cloudflare.com/client/v4/zones/$ZoneId/purge_cache";
    $RequestHeader = @{
        'X-Auth-Email' = $AdminEmail
        'X-Auth-Key' = $ApiKey
    };
    $RequestBody = '{"purge_everything":true}';
    Invoke-RestMethod `
        -Uri $PurgeCacheUri `
        -Method Delete `
        -ContentType  "application/json" `
        -Headers $requestHeader `
        -Body $RequestBody
}

Function PurgeCloudflareCacheByUrls{
    Param(
        [parameter(Mandatory=$true)]
        [string[]] $UrlsToPurge, 
        [parameter(Mandatory=$true)]
        [string] $AdminEmail, 
        [parameter(Mandatory=$true)]
        [string] $ApiKey, 
        [parameter(Mandatory=$true)]
        [string] $ZoneId
    );

    $PurgeCacheUri = "https://api.cloudflare.com/client/v4/zones/$ZoneId/purge_cache";
    $RequestHeader = @{
        'X-Auth-Email' = $AdminEmail
        'X-Auth-Key' = $ApiKey
    };

    $RequestBody = @{ files = $UrlsToPurge } | ConvertTo-Json -Compress;

    Invoke-RestMethod `
        -Uri $PurgeCacheUri `
        -Method Delete `
        -ContentType  "application/json" `
        -Headers $requestHeader `
        -Body $RequestBody
}