Add brevo adapter and test suite for the same.

src/Utopia/Messaging/Adapters/Email/Brevo.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Utopia\Messaging\Adapters\Email;
+
+use Utopia\Messaging\Messages\Email;
+use Utopia\Messaging\Adapters\Email as EmailAdapter;
+
+class Brevo extends EmailAdapter
+{
+    public function __construct(private string $apiKey) 
+    {
+    }
+
+    public function getName(): string
+    {
+        return 'Brevo';
+    }
+
+    public function getMaxMessagesPerRequest(): int
+    {
+        return 1000;
+    }
+
+    protected function process(Email $message): string
+    {
+        $bodyKey = $message->isHtml() ? 'htmlContent' : 'textContent';
+        return $this->request(
+            method: 'POST',
+            url: 'https://api.brevo.com/v3/smtp/email',
+            headers: [
+                'accept: application/json',
+                'Content-Type: application/json',
+                'api-key: '.$this->apiKey,
+            ],
+            body: \json_encode([
+                "sender" => [
+                    "email" => $message->getFrom()
+                ],
+                "to" => \array_map(
+                    fn ($to) => ['email' => $to],
+                    $message->getTo()
+                ),
+                "subject" => $message->getSubject(),
+                $bodyKey => $message->getContent(),
+            ])
+        );
+    }
+}

tests/e2e/Email/BrevoTest.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Tests\E2E;
+
+use Utopia\Messaging\Adapters\Email\Brevo;
+use Utopia\Messaging\Messages\Email;
+
+class BrevoTest extends Base
+{
+    /**
+     * @throws \Exception
+     */
+    public function testSendPlainTextEmail()
+    {
+        // $this->markTestSkipped('Brevo credentials not set.');
+
+        $key = getenv('BREVO_API_KEY');
+        $sender = new Brevo($key);
+
+        $to = getenv('TEST_EMAIL');
+        $subject = 'Test Subject';
+        $content = 'Test Content';
+        $from = getenv('TEST_FROM_EMAIL');
+
+        $message = new Email(
+            to: [$to],
+            from: $from,
+            subject: $subject,
+            content: $content,
+        );
+
+        $response = $sender->send($message);
+        $this->assertArrayHasKey('messageId', json_decode($response, true));
+
+
+
+    }
+}