PHP Mailgun API Fails on GAE: 'Mailgun\Mailgun' Class Not Found

Other Questions Mailgun
1

Encountering a missing Mailgun class error on GAE. Likely a Composer autoloader issue. How can I load the complete package without composer?

require_once 'loader.php';

use MailService\Mailer;

$client = new Mailer('apikey123', 'https://mailapi.example.com');
$domain = 'example.domain.com';

$response = $client->deliver($domain, [
    'from' => '[email protected]',
    'to' => '[email protected]',
    'subject' => 'Test Email',
    'html' => '<p>Hello, world!</p>'
]);

if ($response) {
    echo 'Email dispatched';
}
2

hey, i ran into this issue once. i fixed it by directly requiring the file with the mailgun class. double-check your file paths and namespace names for consistency. might need manual includes for all deps if not using composer.

3

I encountered a similar problem when opting not to use composer on my project. Rather than manually including every dependency file which quickly became unmanageable, I built a lightweight autoloader with spl_autoload_register tailored to the Mailgun package structure. This approach ensured all classes were loaded correctly while keeping my project organized. Additionally, revisiting file paths and verifying directory structures was crucial to pinpoint misconfigurations. This method proved sustainable as the project grew, avoiding issues with static includes and streamlining further integration of other packages.

4

The challenge of not using Composer can be overcome by implementing a custom autoload mechanism that strictly adheres to PSR-4 standards. I resolved similar issues by mapping file paths directly to their corresponding namespaces, which eliminated the need to include every dependency manually. This approach required careful attention to ensure that the directory structure exactly mirrored the namespace declarations. Once properly configured, the autoloader seamlessly loaded the Mailgun classes, providing a sustainable and scalable solution as the project expanded.

5

hey i had similar probs, ended up writin my own spl_autoloader to pull in mailgun classes. also made sure the folder names and namespaces match exactly. hope that helps!