The Basics

use App\Nova\User;
use App\Nova\Post;

// ...

/**
 * Register the application's Nova resources.
 */
protected function resources(): void
{
    Nova::resourcesIn(app_path('Nova'));

    Nova::resources([
        User::class,
        Post::class,
    ]);
}

/**
 * Indicates if the resource should be displayed in the sidebar.
 *
 * @var bool
 */
public static $displayInNavigation = false;

use Illuminate\Http\Request;

// ...

/**
 * Get the menu that should represent the resource.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return \Laravel\Nova\Menu\MenuItem
 */
public function menu(Request $request)
{
    return parent::menu($request)->withBadge(function () {
        return static::$model::count();
    });
}

/**
 * The logical group associated with the resource.
 *
 * @var string
 */
public static $group = 'Admin';

/**
 * The visual style used for the table. Available options are 'tight' and 'default'.
 *
 * @var string
 */
public static $tableStyle = 'tight';

/**
 * Whether to show borders for each column on the X-axis.
 *
 * @var bool
 */
public static $showColumnBorders = true;

/**
 * The relationships that should be eager loaded on index queries.
 *
 * @var array
 */
public static $with = ['user'];

/**
 * Return a replicated resource.
 *
 * @return static
 *
 * @throws \InvalidArgumentException
 */
public function replicate()
{
    return tap(parent::replicate(), function ($resource) {
        $model = $resource->model();

        $model->name = 'Duplicate of '.$model->name;
    });
}

use App\Models\User;
use Illuminate\Http\Request;
use Laravel\Nova\Http\Requests\NovaRequest;
use Laravel\Nova\Nova;

// ...

/**
 * Handle the User "created" event.
 *
 * @return void
 */
public function created(User $user)
{
    Nova::whenServing(function (NovaRequest $request) use ($user) {
        // Only invoked during Nova requests...
    }, function (Request $request) use ($user) {
        // Invoked for non-Nova requests...
    });

    // Always invoked...
}

use Illuminate\Database\Eloquent\Model;
use Laravel\Nova\Http\Requests\NovaRequest;

// ...

/**
 * Register a callback to be called after the resource is created.
 *
 * @return void
 */
public static function afterCreate(NovaRequest $request, Model $model)
{
    $model->sendEmailVerificationNotification();
}

/**
 * Indicates whether the resource should automatically poll for new resources.
 *
 * @var bool
 */
public static $polling = true;

/**
 * The interval at which Nova should poll for new resources.
 *
 * @var int
 */
public static $pollingInterval = 5;

/**
 * Indicates whether to show the polling toggle button inside Nova.
 *
 * @var bool
 */
public static $showPollingToggle = true;

use Laravel\Nova\Http\Requests\NovaRequest;
use Laravel\Nova\Resource as NovaResource;

// ... 

/**
 * Return the location to redirect the user after creation.
 *
 * @return \Laravel\Nova\URL|string
 */
public static function redirectAfterCreate(NovaRequest $request, NovaResource $resource)
{
    return '/resources/'.static::uriKey().'/'.$resource->getKey();
}

use Laravel\Nova\Http\Requests\NovaRequest;
use Laravel\Nova\Resource as NovaResource;

// ... 

/**
 * Return the location to redirect the user after update.
 *
 * @return \Laravel\Nova\URL|string
 */
public static function redirectAfterUpdate(NovaRequest $request, NovaResource $resource)
{
    return '/resources/'.static::uriKey().'/'.$resource->getKey();
}

use Laravel\Nova\Http\Requests\NovaRequest;
use Laravel\Nova\Resource as NovaResource;

// ...

/**
 * Return the location to redirect the user after deletion.
 *
 * @return \Laravel\Nova\URL|string|null
 */
public static function redirectAfterDelete(NovaRequest $request)
{
    return null;
}

'pagination' => 'links',

use Laravel\Nova\Actions\ExportAsCsv;
use Laravel\Nova\Http\Requests\NovaRequest;

// ...

/**
 * Get the actions available for the resource.
 *
 * @return array<int, \Laravel\Nova\Actions\Action>
 */
public function actions(NovaRequest $request): array
{
    return [
        ExportAsCsv::make(),
    ];
}

use Laravel\Nova\Actions\ExportAsCsv;
use Laravel\Nova\Http\Requests\NovaRequest;

// ...

/**
 * Get the actions available for the resource.
 *
 * @return array<int, \Laravel\Nova\Actions\Action>
 */
public function actions(NovaRequest $request): array
{
    return [
        ExportAsCsv::make()->nameable(),
    ];
}

use Laravel\Nova\Actions\ExportAsCsv;
use Laravel\Nova\Http\Requests\NovaRequest;

// ...

/**
 * Get the actions available for the resource.
 *
 * @return array<int, \Laravel\Nova\Actions\Action>
 */
public function actions(NovaRequest $request): array
{
    return [
        ExportAsCsv::make()->withFormat(function ($model) {
            return [
                'ID' => $model->getKey(),
                'Name' => $model->name,
                'Email Address' => $model->email,
            ];
        }),
    ];
}

/**
 * The debounce amount (in seconds) to use when searching this resource.
 *
 * @var float
 */
public static $debounce = 0.5; // 0.5 seconds