Nuxt Integration

Installation

npm install --save @outlit/browser

pnpm add @outlit/browser

yarn add @outlit/browser

bun add @outlit/browser

Quick Start

Create a Nuxt plugin to initialize Outlit:

// plugins/outlit.client.ts
import outlit from '@outlit/browser'

export default defineNuxtPlugin(() => {
  const config = useRuntimeConfig()

  outlit.init({
    publicKey: config.public.outlitKey,
    trackPageviews: true,
  })

  return {
    provide: {
      outlit
    }
  }
})

Configure your runtime config:

// nuxt.config.ts
export default defineNuxtConfig({
  runtimeConfig: {
    public: {
      outlitKey: process.env.NUXT_PUBLIC_OUTLIT_KEY
    }
  }
})

Add your public key to .env:

NUXT_PUBLIC_OUTLIT_KEY=pk_your_public_key_here

Tracking Events

Track events using the provided instance:

<script setup>
const { $outlit } = useNuxtApp()

function handleClick() {
  $outlit.track('button_clicked', {
    button: 'cta',
    page: 'pricing'
  })
}
</script>

<template>
  <button @click="handleClick">
    Get Started
  </button>
</template>

Creating a Composable

Create a reusable composable for better DX:

// composables/useOutlit.ts
export function useOutlit() {
  const { $outlit } = useNuxtApp()

  function track(eventName: string, properties?: Record<string, any>) {
    $outlit.track(eventName, properties)
  }

  function identify(options: { email?: string; userId?: string; traits?: Record<string, any> }) {
    $outlit.identify(options)
  }

  function setUser(identity: { email?: string; userId?: string; traits?: Record<string, any> }) {
    $outlit.setUser(identity)
  }

  function clearUser() {
    $outlit.clearUser()
  }

  return {
    track,
    identify,
    setUser,
    clearUser,
    user: $outlit.user,
  }
}

Use in components:

<script setup>
const { track } = useOutlit()

function handleFeatureClick() {
  track('feature_used', { feature: 'export' })
}
</script>

<template>
  <button @click="handleFeatureClick">
    Export Data
  </button>
</template>

Identifying Users

Identify users after authentication:

<script setup>
const { setUser } = useOutlit()
const router = useRouter()

async function handleLogin(email: string, password: string) {
  const user = await $fetch('/api/auth/login', {
    method: 'POST',
    body: { email, password }
  })

  setUser({
    email: user.email,
    userId: user.id,
    traits: {
      name: user.name,
      plan: user.plan
    }
  })

  router.push('/dashboard')
}
</script>

Auth Integration

With Nuxt Auth

// plugins/outlit.client.ts
import outlit from '@outlit/browser'

export default defineNuxtPlugin(() => {
  const config = useRuntimeConfig()
  const { data: auth } = useAuth()

  outlit.init({
    publicKey: config.public.outlitKey,
    trackPageviews: true,
  })

  // Sync user identity with auth state
  watch(
    () => auth.value,
    (session) => {
      if (session?.user) {
        outlit.setUser({
          email: session.user.email,
          userId: session.user.id,
          traits: {
            name: session.user.name
          }
        })
      } else {
        outlit.clearUser()
      }
    },
    { immediate: true }
  )

  return {
    provide: { outlit }
  }
})

With Supabase

// plugins/outlit.client.ts
import outlit from '@outlit/browser'

export default defineNuxtPlugin(async () => {
  const config = useRuntimeConfig()
  const supabase = useSupabaseClient()
  const user = useSupabaseUser()

  outlit.init({
    publicKey: config.public.outlitKey,
    trackPageviews: true,
  })

  // Sync user identity
  watch(
    user,
    (currentUser) => {
      if (currentUser) {
        outlit.setUser({
          email: currentUser.email!,
          userId: currentUser.id,
          traits: {
            name: currentUser.user_metadata?.name
          }
        })
      } else {
        outlit.clearUser()
      }
    },
    { immediate: true }
  )

  return {
    provide: { outlit }
  }
})

Router Integration

Track route changes:

// plugins/outlit.client.ts
import outlit from '@outlit/browser'

export default defineNuxtPlugin(() => {
  const config = useRuntimeConfig()
  const router = useRouter()

  outlit.init({
    publicKey: config.public.outlitKey,
    trackPageviews: false, // Manual pageview tracking
  })

  // Track pageviews on route change
  router.afterEach((to) => {
    outlit.track('pageview', {
      path: to.path,
      name: to.name,
      params: to.params,
      query: to.query
    })
  })

  return {
    provide: { outlit }
  }
})

Server-Side Tracking

Track events from server API routes:

// server/api/checkout.post.ts
import { Outlit } from '@outlit/node'

const outlit = new Outlit({
  publicKey: process.env.OUTLIT_KEY!
})

export default defineEventHandler(async (event) => {
  const body = await readBody(event)

  outlit.track({
    userId: body.userId,
    eventName: 'checkout_completed',
    properties: {
      amount: body.amount,
      plan: body.plan
    }
  })

  await outlit.flush()

  return { success: true }
})

For server-side tracking, see the Node.js integration guide.

Activation event

Mark activation after the user completes your product’s activation milestone:

<script setup>
const { track } = useOutlit()

function handleOnboardingComplete() {
  track('onboarding_completed', { flow: 'onboarding', step: 'completed' })
}
</script>

Configure this ordinary event as your activation signal. Outlit Core derives activation, engagement, and inactivity; billing comes from verified integrations such as Stripe. See Customer Journey.

Handle user consent:

<script setup>
const showBanner = ref(false)
const { $outlit } = useNuxtApp()

onMounted(() => {
  const hasConsent = localStorage.getItem('tracking-consent')
  if (hasConsent !== 'true') {
    showBanner.value = true
  }
})

function acceptTracking() {
  localStorage.setItem('tracking-consent', 'true')
  $outlit.enableTracking()
  showBanner.value = false
}
</script>

<template>
  <div v-if="showBanner" class="cookie-banner">
    <p>We use cookies to improve your experience.</p>
    <button @click="acceptTracking">Accept</button>
  </div>
</template>

Initialize without auto-tracking:

// plugins/outlit.client.ts
import outlit from '@outlit/browser'

export default defineNuxtPlugin(() => {
  const config = useRuntimeConfig()

  outlit.init({
    publicKey: config.public.outlitKey,
    autoTrack: false, // Wait for consent
  })

  return {
    provide: { outlit }
  }
})

Environment Variables

Configure environment variables:

# .env

# Public key (used in browser)
NUXT_PUBLIC_OUTLIT_KEY=pk_your_public_key_here

# Server key (used in server API routes)
OUTLIT_KEY=pk_your_public_key_here

Keep server environment variables out of client-side code. Only use OUTLIT_KEY in server API routes.

TypeScript Support

Full TypeScript support is included:

// plugins/outlit.client.ts
import outlit, { type OutlitOptions } from '@outlit/browser'

export default defineNuxtPlugin(() => {
  const config = useRuntimeConfig()

  const options: OutlitOptions = {
    publicKey: config.public.outlitKey,
    trackPageviews: true,
    flushInterval: 5000
  }

  outlit.init(options)

  return {
    provide: { outlit }
  }
})

Next Steps

Vue Integration

Use Outlit with Vue 3

Server-Side Tracking

Track events from your backend

Identity Resolution

Learn how profiles are merged

NPM Package

Full API reference

Getting Started

Concepts

Browser SDKs

Server SDKs

CLI

AI Integrations

Use Cases

Installation

Quick Start

Tracking Events

Creating a Composable

Identifying Users

Auth Integration

With Nuxt Auth

With Supabase

Router Integration

Server-Side Tracking

Activation event

Environment Variables

TypeScript Support

Next Steps

Vue Integration

Server-Side Tracking

Identity Resolution

NPM Package

​Installation

​Quick Start

​Tracking Events

​Creating a Composable

​Identifying Users

​Auth Integration

​With Nuxt Auth

​With Supabase

​Router Integration

​Server-Side Tracking

​Activation event

​Consent Management

​Environment Variables

​TypeScript Support

​Next Steps

Vue Integration

Server-Side Tracking

Identity Resolution

NPM Package

Installation

Quick Start

Tracking Events

Creating a Composable

Identifying Users

Auth Integration

With Nuxt Auth

With Supabase

Router Integration

Server-Side Tracking

Activation event

Consent Management

Environment Variables

TypeScript Support

Next Steps