Nuxt Lettermint Module

A Nuxt module for sending emails using the Lettermint email service. This module provides a seamless integration with Lettermint's Node.js SDK for both server-side and client-side email sending capabilities.

Lettermint is a European transactional email service provider focused on simplicity, reliability, and developer experience. Visit Lettermint.co for more information about our email platform.

Features

• 🚀 Full TypeScript support
• 🔒 Secure API key management
• 📧 Simple composable for client-side usage
• 🛠️ Direct server-side SDK access
• ⚙️ Flexible configuration via environment variables or nuxt.config.ts
• 🎯 Compatible with Nuxt 3 and Nuxt 4

Quick Setup

1. Install the module

Using the Nuxt CLI (recommended):

npx nuxi module add lettermint

Or install manually:

# npm
npm install nuxt-lettermint

# pnpm
pnpm add nuxt-lettermint

# yarn
yarn add nuxt-lettermint

2. Add to your Nuxt config

// nuxt.config.ts
export default defineNuxtConfig({
  modules: ['nuxt-lettermint']
})

3. Configure your API key

First, get your API key from Lettermint:

1. Go to https://dash.lettermint.co/projects
2. Select your project
3. Find your API token

Then set your API key in one of two ways:

Option A: Create a .env file in your project root (recommended):

NUXT_LETTERMINT_API_KEY=your-lettermint-api-key

Option B: Add it directly to your nuxt.config.ts:

export default defineNuxtConfig({
  modules: ['nuxt-lettermint'],
  lettermint: {
    apiKey: 'your-api-key'
  }
})

Configuration

The module accepts the following configuration options:

export default defineNuxtConfig({
  modules: ['nuxt-lettermint'],
  lettermint: {
    // Your Lettermint API key (see step 3 above for configuration options)
    apiKey: 'your-api-key',
    
    // Enable/disable the auto-generated /api/lettermint/send endpoint (default: true)
    // Set to false if you want to create your own custom endpoints
    autoEndpoint: true
  }
})

Disabling the Auto-Generated Endpoint

By default, the module creates an endpoint at /api/lettermint/send for sending emails. If you prefer to create your own custom endpoints, you can disable this behavior:

// nuxt.config.ts
export default defineNuxtConfig({
  modules: ['nuxt-lettermint'],
  lettermint: {
    autoEndpoint: false
  }
})

Note: When you disable the auto-generated endpoint:

• You can still send emails directly from your server code using the sendEmail function
• The client-side useLettermint() composable will not work unless you create a custom endpoint at /api/lettermint/send
• Only create a custom endpoint if you need specific routing, additional logic, or client-side email sending:

// server/api/custom-send.post.ts (optional)
import { sendEmail } from '#imports'

export default defineEventHandler(async (event) => {
  const body = await readBody(event)
  // Add your custom logic here
  return await sendEmail(body)
})

Usage

Client-Side

<script setup>
const { send, sending, error } = useLettermint()

await send({
  from: '[email protected]',
  to: '[email protected]',
  subject: 'Hello!',
  html: '<h1>Hello World</h1>'
})
</script>

Server-Side

// server/api/send.post.ts
import { sendEmail } from '#imports'

export default defineEventHandler(async () => {
  return await sendEmail({
    from: '[email protected]',
    to: '[email protected]',
    subject: 'Welcome',
    html: '<h1>Welcome!</h1>',
    tags: ['welcome']
  })
})

Advanced Usage

import { useLettermint } from '#imports'

const lettermint = useLettermint()
await lettermint.email
  .from('[email protected]')
  .to('[email protected]')
  .subject('Hello')
  .html('<h1>Hello</h1>')
  .tag('campaign')
  .send()

Links

• Lettermint
• Lettermint Documentation
• Lettermint Node.js SDK

License

MIT License © 2025 Lettermint