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@vercel/og

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@vercel/og

Generate Open Graph Images dynamically from HTML/CSS without a browser

  • 0.5.16
  • npm
  • Socket score

Version published
Maintainers
9
Created

What is @vercel/og?

@vercel/og is a package designed to generate Open Graph images dynamically. It allows developers to create custom social media preview images on the fly using HTML and CSS, which can be particularly useful for generating unique images for each page or post on a website.

What are @vercel/og's main functionalities?

Generate Open Graph Images

This feature allows you to generate Open Graph images dynamically using HTML and CSS. The code sample demonstrates how to create an image with a custom title passed as a query parameter.

const { ImageResponse } = require('@vercel/og');

export default function handler(req, res) {
  const { searchParams } = new URL(req.url, 'http://localhost');
  const title = searchParams.get('title') || 'Default Title';

  const image = new ImageResponse(
    <div style={{
      fontSize: 128,
      color: 'white',
      background: 'black',
      width: '100%',
      height: '100%',
      display: 'flex',
      alignItems: 'center',
      justifyContent: 'center',
    }}>
      {title}
    </div>,
    {
      width: 1200,
      height: 630,
    }
  );

  res.setHeader('Content-Type', 'image/png');
  res.send(image);
}

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Package last updated on 20 Sep 2023

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