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Screenshots

Contents

Feed this runtime service a URL and it returns a fully rendered screenshot image from that page (using Puppeteer)

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Source Code

Usage

Image URLs have the format:

https://v1.screenshot.11ty.dev/:url/
https://v1.screenshot.11ty.dev/:url/:size/
https://v1.screenshot.11ty.dev/:url/:size/:aspectratio/
https://v1.screenshot.11ty.dev/:url/:size/:aspectratio/:zoom/
  • url must be URI encoded.
  • Valid size values:
    • small: 375×___ (default)
    • medium: 650×___
    • large: 1024×___
      • aspectratio of 9:16 is not supported (throws an error)
    • opengraph: always 1200×630, works with zoom
      • aspectratio is ignored (no errors thrown)
  • Valid aspectratio values:
    • 1:1 (default)
    • 9:16
  • Valid zoom values:
    • bigger (1.4 devicePixelRatio)
    • smaller (0.71 devicePixelRatio)

Sample

Try it out on the Eleventy API Explorer.

Screenshot of 11ty.dev 
<img
	src="https://v1.screenshot.11ty.dev/https%3A%2F%2Fwww.11ty.dev%2Fdocs%2F/small/9:16/bigger/"
	class="screenshot screenshot-first-example"
	width="375"
	height="667"
	loading="lazy"
	decoding="async"
	alt="Screenshot of 11ty.dev"
/>

Advanced Options

Custom Wait Conditions

You can customize the conditions with which the headless browser will wait to take the screenshot. At a low level, this controls the waitUntil property in Puppeteer’s goto call. The options are:

  • DOMContentLoaded wait:0
  • Load event wait:1 (default)
  • Load event; there have been no network connections for 500ms: wait:2
  • Load event; there are fewer than two network connections for 500ms: wait:3
/:url/_wait:0/
/:url/_wait:1/
/:url/_wait:2/
/:url/_wait:3/

Custom Timeout

Number of seconds to wait before the request times out. We will attempt to simulate the stop button and return the screenshot that exists up to that point. Worst case, a default Eleventy logo is returned.

  • Minimum: 3
  • Maximum: 9
/:url/_timeout:3/
/:url/_timeout:9/

Combine these options

You can use any of these advanced options together, like /:url/_wait:0_timeout:2/. Order only matters to the uniqueness of the URL caching on the CDN.

Other pages in API Services: