Add service provider

composer.json

@@ -16,5 +16,12 @@
         "psr-4": {
             "Voh\\KmSocialite\\": "src/"
         }
+    },
+    "extra": {
+        "laravel": {
+            "providers": [
+                "Voh\\KmSocialite\\KmSocialiteServiceProvider"
+            ]
+        }
     }
 }

src/KmSocialiteServiceProvider.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Voh\KmSocialite;
+
+use Illuminate\Support\ServiceProvider;
+use Laravel\Socialite\Contracts\Factory;
+
+/**
+ * Class KmSocialiteServiceProvider
+ *
+ * @package Voh\KmSocialite
+ */
+class KmSocialiteServiceProvider extends ServiceProvider
+{
+    /**
+     *
+     */
+    public function boot()
+    {
+        $socialite = $this->app->make(Factory::class);
+        $socialite->extend('km', function ($app) use ($socialite) {
+            $config = $app['config']['services.km'];
+
+            return $socialite->buildProvider(KmSocialiteProvider::class, $config);
+        });
+    }
+}