php - Manually attach package to Laravel (unable to use composer due to firewall) -

i can't use composer handle dependencies due corporate firewall. @ moment i'm trying use barry vd heuvel's dompdf wrapper laravel , tried to:

1. download zipfile github (master)
2. updated composer.json (not sure if needed, did anyway) , added "barryvdh/laravel-dompdf": "*" in require container.
3. create folder structure: vendor/barryvdh/laravel-dompdf
4. place files package in there (config-folder, src-folder , files .gitignore, composer.json , readme.md)
5. add service provider , facade in app.php. service provider listed barryvdh\dompdf\serviceprovider::class , facade aliased 'pdf' => barryvdh\dompdf\facade::class
6. ran composer dump-autoload

after refreshing browser i'm getting class 'barryvdh\dompdf\serviceprovider' not found. tried run php artisan cache:clear , php artisan dump-autoload last 1 fails on fact can't find barryvdh\dompdf\serviceprovider.

what have forgotten make work?

update i've tried suggested answer wouter j , composer.json looks like:

.. "autoload": {     "classmap": [       "database"     ],     "psr-4": {       "app\\": "app/",       "barryvdh\\dompdf\\": "vendor/barryvdh/laravel-dompdf/src"     }, .. 

i've verified if composer dump-autoload had effect think had. because entry listed in vendor/composer/autoload_psr4.php like:

return array(  // more entries  'barryvdh\\dompdf\\' => array($vendordir . '/barryvdh/laravel-dompdf/src'),  'app\\' => array($basedir . '/app'), ); 

i believe @ point working, facade isn't responding. when try call pdf::loadview(...) , let phpstorm import class (vendor/barryvdh/laravel-dompdf/src/pdf.php) throws error can't call method loadview statically. according documentation should able call this:

$pdf = pdf::loadview('pdf.invoice', $data); return $pdf->download('invoice.pdf'); 

but results in non-static method barryvdh\dompdf\pdf::loadview() should not called statically, assuming $this incompatible context on end.

suggestions?

composer autoload still doesn't know how download package. have configure autoloading this:

{     "autoload": {         "psr-4": { "namespace\\of\\the\\package\\": "vendor/the/package" }     } }