gatsby-plugin-imgix

gatsby-plugin-imgix

Gatsby plugin which enables the use of Imgix to apply image transformations at request-time.

For most cases, this plugin can replace the use of gatsby-transformer-sharp and speed up your build times significantly.

Learn more about Imgix on their site.

Status

Install

npm install --save gatsby-plugin-imgix

How to use

// gatsby-config.js

module.exports = {
  plugins: [
    {
      resolve: 'gatsby-plugin-imgix',
      options: {
        // Imgix source domain. This is required.
        domain: 'example-domain.imgix.net',

        // Imgix source secure URL token. Providing this will automatically
        // secure all of your image URLs. This is required if your source type
        // is a Web Proxy.
        // See: https://docs.imgix.com/setup/securing-images
        //
        // Note that this is a private key and should be hidden behind an
        // environment variable.
        // See: https://www.gatsbyjs.org/docs/environment-variables/#server-side-nodejs
        secureUrlToken: process.env.IMGIX_SECURE_URL_TOKEN,

        // Imgix source type. If your source type is a Web Proxy, set this to
        // "webProxy". Otherwise, you may omit this field. URLs provided to the
        // plugin will automatically be converted to a Web Proxy-compatible URL
        // if set to "webProxy".
        sourceType: 'webProxy',

        // List of fields to copy into `fields` as Imgix images. You may list
        // as many fields as needed.
        fields: [
          {
            // The node type containing the image to copy.
            nodeType: 'MarkdownRemark',

            // Name of the new field to create. If you set this to
            // "featuredImage", a field at `fields.featuredImage` will be
            // created.
            fieldName: 'featuredImage',

            // Function to get the URL in the node. This function should return
            // the URL as a string. If your field contains an array of URLs,
            // change the `getUrl` option name to `getUrls`.
            getUrl: (node) => node.frontmatter.featured_image,
          },
        ],
      },
    },
  ],
}

How to query

Fields setup in your configuration are copied into a fields property on the image's node.

For example, a ShopifyProduct node with an image field named featuredImage could be queried like the following:

Note: Learn to use the GraphQL tool and Ctrl+Spacebar at http://localhost:8000/___graphql to discover the types and properties of your GraphQL model.

query {
  allShopifyProduct {
    nodes {
      id
      fields {
        featuredImage {
          url
        }
      }
    }
  }
}

fields is a special Gatsby field reserved for plugins to add data to existing nodes. If fields does not already exist on your node, it will be added automatically.

See the documentation for createNodeField for more information.

Query image URLs with transformations

Imgix image transformations are applied via URL parameters. The url field accepts an imgixParams argument to build a URL with the provided parameters.

query {
  allShopifyProduct {
    nodes {
      id
      fields {
        featuredImage {
          # 800px width and grayscale
          url(imgixParams: { w: 800, sat: -100 })
        }
      }
    }
  }
}

Query responsive images

Responsive images to display using gatsby-image can be queried using the fixed or fluid field.

Use this pattern where ...ImageFragment is one of the following fragments:

• GatsbyImgixFixed
• GatsbyImgixFixed_noBase64
• GatsbyImgixFluid
• GatsbyImgixFluid_noBase64

Learn about the different types of responsive images and fragments from gatsby-image’s official docs.

query {
  allShopifyProduct {
    nodes {
      id
      fields {
        featuredImage {
          fluid {
            ...ImageFragment
          }
        }
      }
    }
  }
}

Full example:

query {
  allShopifyProduct {
    nodes {
      id
      fields {
        featuredImage {
          fluid(maxWidth: 1000, maxHeight: 800) {
            ...GatsbyImgixFluid
          }
        }
      }
    }
  }
}

Programmatic use

The following functions are provided to build a gatsby-image-compatible object for fixed and fluid responsive images. These functions are used internally by this plugin to build the gatsby-image objects.

buildImgixFixed

Docs coming soon

buildImgixFluid

Docs coming soon

For plugin developers

gatsby-plugin-imgix can be used to provide gatsby-image support to your Imgix-backed plugin. Source plugins that serve Imgix URLs, such as gatsby-source-prismic, use this plugin for drop-in support of GraphQL-based image transformations.

The following plugins use gatsby-plugin-imgix:

• gatsby-source-prismic

The following functions can be used to integrate gatsby-plugin-imgix with your plugin.

createImgixUrlFieldConfig

Creates a GraphQL field config object that resolves an Imgix URL string to one with URL parameters.

import { GatsbyNode } from 'gatsby'
import { GraphQLObjectType } from 'gatsby/graphql'
import { createImgixUrlFieldConfig } from 'gatsby-plugin-imgix'

export const createSchemaCustomization: GatsbyNode['createSchemaCustomization'] = async (
  gatsbyContext: CreateSchemaCustomizationArgs,
) => {
  const { actions, cache } = gatsbyContext
  const { createTypes } = actions

  const GraphQLProductType = new GraphQLObjectType({
    name: 'Product',
    fields: {
      imageUrl: createImgixUrlFieldConfig({
        resolveUrl: (url) => url,
      }),
    },
  })

  createTypes(GraphQLProductType)
}

createImgixFixedFieldConfig

Creates a GraphQL field config object that resolves an Imgix URL string to a gatsby-image-compatible FixedObject.

import { GatsbyNode } from 'gatsby'
import { GraphQLObjectType } from 'gatsby/graphql'
import { createImgixFixedFieldConfig } from 'gatsby-plugin-imgix'

export const createSchemaCustomization: GatsbyNode['createSchemaCustomization'] = async (
  gatsbyContext: CreateSchemaCustomizationArgs,
) => {
  const { actions, cache } = gatsbyContext
  const { createTypes } = actions

  const GraphQLProductType = new GraphQLObjectType({
    name: 'Product',
    fields: {
      imageFixed: createImgixFixedFieldConfig({
        resolveUrl: (url) => url,
        cache,
      }),
    },
  })

  createTypes(GraphQLProductType)
}

createImgixFluidFieldConfig

Creates a GraphQL field config object that resolves an Imgix URL string to a gatsby-image-compatible FluidObject.

import { GatsbyNode } from 'gatsby'
import { GraphQLObjectType } from 'gatsby/graphql'
import { createImgixFluidFieldConfig } from 'gatsby-plugin-imgix'

export const createSchemaCustomization: GatsbyNode['createSchemaCustomization'] = async (
  gatsbyContext: CreateSchemaCustomizationArgs,
) => {
  const { actions, cache } = gatsbyContext
  const { createTypes } = actions

  const GraphQLProductType = new GraphQLObjectType({
    name: 'Product',
    fields: {
      imageFluid: createImgixFluidFieldConfig({
        resolveUrl: (url) => url,
        cache,
      }),
    },
  })

  createTypes(GraphQLProductType)
}

Changelog

0.8.0 (2020-06-05)

Features

• provide source dimensions if available (#6) (45bbfd9)