In this guide, we’ll walk you through how to integrate Mosaic’s dynamic Open Graph (OG) image generation service into a Nuxt.js app. Mosaic generates OG images based on the URL of the current page, and we’ll show you how to set this up in Nuxt.

Dynamic OG Image Integration

Mosaic provides an image URL that requires a query parameter: the current page URL. Here’s how to set that up dynamically in your Nuxt app so that each page generates its own OG image.

Step 1: Dynamic Meta Tags in Nuxt Pages

Nuxt allows you to configure Open Graph meta tags dynamically by using the head property inside your page components. This is how you can set the OG image to reflect the current page’s URL.

Example:

In your page component, use the following code to dynamically generate the OG image URL:

<template>
  <div>
    <!-- Your page content -->
  </div>
</template>

<script>
export default {
  head() {
    const currentUrl = this.$route.fullPath // Get current route path
    const mosaicUrl = `https://mosaicimg.com/use?url=${encodeURIComponent(currentUrl)}`

    return {
      meta: [
        { hid: 'og:title', property: 'og:title', content: 'Dynamic Page Title' },
        { hid: 'og:description', property: 'og:description', content: 'Dynamic Page Description' },
        { hid: 'og:image', property: 'og:image', content: mosaicUrl }
      ]
    }
  }
}
</script>

Step 2: Global OG Image Generation

If you want to apply the OG image to every page globally, modify the nuxt.config.js file. Use window.location.href to fetch the current URL client-side:

export default {
  head() {
    let pageUrl = ''
    if (process.browser) {
      pageUrl = window.location.href
    }
    
    const mosaicUrl = `https://mosaicimg.com/use?url=${encodeURIComponent(pageUrl)}`

    return {
      meta: [
        { hid: 'og:title', property: 'og:title', content: 'Global Page Title' },
        { hid: 'og:description', property: 'og:description', content: 'Global Page Description' },
        { hid: 'og:image', property: 'og:image', content: mosaicUrl }
      ]
    }
  }
}

This will ensure the OG image is generated dynamically based on the current URL.

Conclusion

Integrating Mosaic with Nuxt.js is straightforward and allows you to automatically generate dynamic OG images for each page. Whether you implement this on a per-page basis or globally, Mosaic simplifies the process of creating visually engaging previews for your content.

For further customization or advanced use cases, feel free to reach out to us.