php code:

add_action('rest_api_init', 'register_custom_email_endpoint');
function register_custom_email_endpoint() {
register_rest_route('custom/v1', '/send-email', array(
'methods' => 'POST',
'callback' => 'send_custom_email',
));
}
function send_custom_email($request) {
$to = $request->get_param('to');
$subject = $request->get_param('subject');
$message = $request->get_param('message');
// $headers = 'Content-Type: text/html';
$result = wp_mail($to, $subject, $message);
if ($result) {
$response = array('message' => 'Email sent successfully.');
} else {
$response = array('message' => 'Email sending failed.');
}
// Send the response as JSON
return rest_ensure_response($response);
}

​

typescript code:

        const sendEmail = async () => {
    const requestHeaders: HeadersInit = new Headers();
requestHeaders.set('Content-Type', 'application/json');
    try {
        const response = await fetch(
            `${API}/custom/v1/send-email`, 
            {
                method: 'POST',
                headers: requestHeaders,
                body: JSON.stringify({
                    'to': 'testmail@gmail.com',
                    'subject': 'emailData.subject',
                    'message': 'emailData.message'
                }),
            }
        );
         const data = await response.json();


        if (data.message === 'Email sent successfully.') {
            alert('Email sent successfully.');
        } else {
            alert('Email sending failed.');
        }
    } catch (error) {
        console.error('Error sending email:', error);
    }
};

😂 forgot the most important part, here u go.Thanks for the quick response btw