Added the ability to retrieve welcome messags from APIs

app/Server/Support/RetrieveWelcomeMessageFromApi.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Server\Support;
+
+use Exception;
+use Psr\Http\Message\ResponseInterface;
+use Clue\React\Buzz\Browser;
+
+class RetrieveWelcomeMessageFromApi
+{
+    /** @var Browser */
+    protected $browser;
+
+    /** @var string */
+    protected $url;
+
+    public function __construct(Browser $browser)
+    {
+        $this->browser = $browser;
+
+        $this->url = config('expose.admin.welcome_message_api_url');
+    }
+
+    public function forUser($user)
+    {
+        return $this->browser
+            ->get($this->url . '?' . http_build_query($user), [
+                'Accept' => 'application/json',
+            ])
+            ->then(function (ResponseInterface $response) {
+                $result = json_decode($response->getBody());
+
+                return $result->message ?? '';
+            }, function (Exception $e) {
+                return '';
+            });
+    }
+}