Integrations and Email
Integration patterns in Svelte 5 and SvelteKit — Nodemailer for email sending, advanced email templates, ad campaign integrations, and general third-party integration approaches.
sveltesveltekitemailnodemailerintegrationstemplates
Integration patterns for connecting SvelteKit applications with external services, with a focus on email delivery and campaign management.
Nodemailer in Svelte 5
Send emails from server load functions or form actions using Nodemailer:
import nodemailer from 'nodemailer'
const transporter = nodemailer.createTransport({
host: process.env.SMTP_HOST,
port: 587,
auth: { user: process.env.SMTP_USER, pass: process.env.SMTP_PASS }
})
export const actions = {
contact: async ({ request }) => {
const data = await request.formData()
await transporter.sendMail({
to: 'admin@example.com',
subject: `Contact from ${data.get('name')}`,
html: `<p>${data.get('message')}</p>`
})
return { success: true }
}
} Best Practices
- Use
$env/static/privateor$env/dynamic/privatefor SMTP credentials - Create email templates as reusable components rendered to HTML
- Queue emails for better performance (async processing)
- Handle email failures gracefully with error states
Advanced Email Templates
Render Svelte components as email HTML using svelte/server’s render():
<!-- EmailTemplate.svelte -->
<h1>Welcome, {name}!</h1>
<p>Thanks for signing up.</p> import { render } from 'svelte/server'
import EmailTemplate from './EmailTemplate.svelte'
const { body } = render(EmailTemplate, { props: { name: 'Alice' } })
await transporter.sendMail({ html: body }) Ad Campaigns
Integration patterns for ad campaign platforms (Google Ads, Meta Ads, etc.) via server-side API calls in load functions or dedicated server routes.
General Integration Patterns
- Webhooks: Use
+server.jsendpoints to receive webhooks - Third-party APIs: Call from server load functions or actions
- OAuth flows: Use handle hooks for token management
- Background jobs: Process integrations asynchronously using queue systems
See Also
- SvelteKit Form Actions — form submission patterns that integrate with email
- SvelteKit Hooks and Server Runtime — middleware for auth tokens
- SvelteKit Environment and Modules — environment variables for API keys
