Gatsby loads only the critical HTML, CSS, data, and JavaScript, so your site loads as fast as possible. You get code and data splitting out-of-the-box. Gatsby, on the other hand, is “a static PWA (Progressive Web App) generator. It is intended to be lightweight and broadly applicable. React is a library meant to provide a particular set of core functionality for developers to leverage. “Gatsby is a free and open-source framework based on React that helps developers build blazing-fast websites and apps.” According to the Gatsby team. It is often posed about tools such as Next.js. Passed to the wrapper element.Why would we need a framework on top of a framework (or a library)? Isn’t React a tool that “helps developers build websites and apps”? This is a reasonable question. When prop is an array it has to be combined with media keys, allows for art directing fluid images.įading duration is set up to 500ms by default When prop is an array it has to be combined with media keys, allows for art directing fixed images.ĭata returned from the fluid query. gatsby-image props Nameĭata returned from the fixed query. While you could achieve a similar effect with plain CSS media queries, gatsby-image accomplishes this using the tag, which ensures that browsers only download the image they need for a given breakpoint. Installĭepending on the gatsby starter you used, you may need to include gatsby-transformer-sharp and gatsby-plugin-sharp as well, and make sure they are installed and included in your gatsby-config. The gatsby-image component automatically sets up the “blur-up”Įffect as well as lazy loading of images further down the screen. The GraphQL query creates multiple thumbnails with optimized JPEG and PNGĬompression. Which specify the fields needed by gatsby-image. Write a GraphQL query using one of the included GraphQL “fragments”.Import gatsby-image and use it in place of the built-in img.Processing capabilities powered by GraphQL and Sharp. Gatsby-image is designed to work seamlessly with Gatsby’s native image With Gatsby, we can make images way way better. Optimized images should be easy and the default. Most solutions involve a lot of manual labor and bookkeeping to ensure every Or a design-tweak shaves 100px of width off your images. Optimize your images and then… several images are swapped in at the last minute Hold the image position so your page doesn’t jump while images load.ĭoing this consistently across a site feels like a task that can never be completed.Show a preview of the image while it loads. Efficiently lazy load images to speed initial page load and save bandwidth. Strip all unnecessary metadata and optimize JPEG and PNG compression.Generate multiple smaller images so smartphones and tablets don’t download.Resize large images to the size needed by your design.Large, unoptimized images dramatically slow down your site.īut creating optimized images for websites has long been a thorny problem. Polyfilling object-fit/object-position for IE.Some ways you can use won’t work with gatsby-image. Optimized for fixed width/height images and images that stretch the full-width Note: gatsby-image is not a drop-in replacement for. Gatsby-image is a React component specially designed to work seamlessly withĬapabilities with advanced image loading techniques to easily and completely Speedy, optimized images without the work. See the migration guide to learn how to upgrade. The new Gatsby image plugin has better performance, cool new features and a simpler API. The gatsby-image package is now deprecated.
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