Add email via Resend

src/lib/server/resend.ts

@@ -0,0 +1,56 @@
+/** src/lib/server/resend.ts
+ * AUTHOR: Neil Clack
+ * EMAIL: nclack@radiantwavetech.com
+ * DATE: 07/06/2027
+ * 
+ * A server side library and client for Resend
+ * Includes the Resend client, as well as functions
+ * for different email scenarios.
+ * 
+ */
+import { Resend } from 'resend';
+import { RESEND_API_KEY, EMAIL_FROM, RESEND_TEMPLATE_ID } from '$env/static/private';
+
+export const resend = new Resend(RESEND_API_KEY);
+
+/**
+ * Send a transactional email using a Resend-hosted template.
+ *
+ * @example
+ *   await sendMail({
+ *     to: 'jane@example.com',
+ *     templateId: 'tmpl_abc123',           // optional — defaults to RESEND_TEMPLATE_ID
+ *     subject: 'Your license key is ready', // optional — defaults to 'Template Email'
+ *     data: {                                // optional — template variables
+ *       firstName: 'Jane',
+ *       licenseKey: 'RWT-7X9K-2M4Q'
+ *     }
+ *   });
+ *
+ * @returns The Resend API response data on success.
+ * @throws {Error} If the Resend API call fails.
+ */
+export async function sendMail(options: {
+    to: string;
+    subject?: string;
+    templateId?: string;
+    data?: Record<string, string | number>;
+}) {
+    const { to, subject, templateId, data } = options;
+
+    const result = await resend.emails.send({
+        from: EMAIL_FROM,
+        to: [to],
+        subject: subject ?? 'Template Email',
+        template: {
+            id: templateId ?? RESEND_TEMPLATE_ID,
+            variables: data ?? {}
+        }
+    });
+
+    if (result.error) {
+        throw new Error(result.error.message);
+    }
+
+    return result.data;
+}