's3' => [
            'driver' => 's3',
            'key' => env('AWS_KEY'),    ===> I found this
            'secret' => env('AWS_SECRET'),  but ?
            'region' => env('AWS_REGION'), but ?
            'bucket' => env('AWS_BUCKET'), but ?
        ],

Can you please help me with the configs

with Thanks

Of course! first of all from your digital ocean dashboard go to the api tab. Then look at your token/keys, specifically the spaces access keys. When you create a new key or regenerate one you will see the secret, you MUST take note as that is the only time you will see it (without regenerating again invalidating any apps attached). So now you have the key (AWSKEY in .env) and the secret (AWSSECRET). At the moment the only region available is NYC3 so it just set AWSREGION to NY3. When you created the space you will have called it something, whatever you called the space this will be the bucket name set AWSBUCKET to the name of the space. Finally the url was AWS_URL=https://nyc3.digitaloceanspaces.com.

Set all of these in your .env and then add an entry in your filesystems.php as below

'DO' => [
    'driver' => 's3',
    'key' => env('AWS_KEY'),
    'secret' => env('AWS_SECRET'),
    'region' => env('AWS_REGION'),
    'bucket' => env('AWS_BUCKET'),
    'endpoint' => env('AWS_URL')
],

You can then use the storage facade as follows

$disk = Storage::disk(‘DO’);
$content = filegetcontents($file);
$this->storage->put($filePath, $content , 'public’);

Where file is a posted file from a form.