slya-email-interface-test.html

<html>
<body>
<script>

	let interfaceURL = 'https://yourdomain.com/slya-email-interface.php?code=xxx';

	async function sendEMail(subject,text) {
			try {
				console.log('Sending a message via the email interface, subject: ', subject);
				const response = await fetch(interfaceURL, {
					method: "POST",
					body: JSON.stringify({
						subject: 'SLYA: ' + subject,
						text: text
					}),
					headers: {
						"Content-type": "application/json; charset=UTF-8"
					}
				});
				if (!response.ok) {
					console.log('Error while sending a request to the email interface:', response.status, response.statusText);
				} else {
					const result = await response.json();
					if(!result.success) {
						console.log('Error from email interace:', result.text);
					} else {
						console.log('The email was sent');
					}
				}
			} catch(error) {
				console.log('Error while sending a request to the email interface:', error.message);
			}
	}

	sendEMail('Test subject','Mail body');

</script>

</body>
</html>