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Contentful

Browse, search, and add assets into your content quickly and easily via the imgix Asset Manager.
TypeScript 10 4 days ago imgix/contentful

Installation

The app can be installed to your Contentful workspace via the marketplace.

If running locally, the app can be installed via npm:

npm install @imgix/contentful
npm run start

Configuration

Upon installation, configure the app using an API key generated via the imgix Dashboard. Ensure that the generated key has the following permissions: Sources and Asset Manager Browse.

Following the instructions on the screen, enter in the API key and press Verify. If the key is valid, you will receive a notification that the key has been successfully verified. If verification fails, you will need to ensure that the key was entered correctly.

Compatibility

This Contentful app is not compatible with Web Proxy Sources. Uploading functionality is not compatible with Web Folder sources. See the imgix documentation for a list of Sources that you can create in imgix.

Assign to Fields (Optional)

The configuration page surfaces the option for users to select pre-existing content fields that are compatible with the imgix app. Note that the app is configured to integrate with JSON object fields only, therefore only fields of this type will be displayed. Users may prefer this method over selecting individual fields manually for each applicable content model.

Add to Content Model

Of the many content types that users can choose from, imgix specifically integrates with the JSON object. Please note that if you are currently using a Media content type for images, you will need to create a new field of type JSON object to integrate the app with. Designate a field to use imgix on by navigating to that field’s Appearance tab and selecting the app. This step can be skipped if you already assigned the app directly to the desired field(s).

Browse and Select Assets

From any instance of a field using the imgix app, a modal can be opened to browse assets by imgix source. First, select a desired source to browse assets from. Using any of the pagination buttons, navigate each page of assets to choose from. After selecting an asset, it can be inserted to the field via the Add asset button. Additionally, there are options to replace an asset, or clear a selection from the field altogether.

Search for Assets

The imgix app enables users to conduct a keyword search across assets in a source. Using the search box near the top of the modal will execute a search across multiple pre-determined fields: file origin path, asset tags, and categories. To learn more about these fields, see our Asset Manager documentation.

Upload Assets

note: uploading to web folder sources is not supported at this time.

The imgix app enables users to upload assets to a source. Using the "Upload" button near the top of the modal, users can select an image to upload to their desired source. Users change the upload source destination, filepath, or filename. To learn more about uploading, see our Asset Manager documentation.

Query an Asset

Once the content is published, developers can query the src of the selected asset, returned as a string, via the Contentful API. The example below demonstrates this using GraphQL, but this can be done independent of any specific tool.

query MyQuery {
  allContentfulArticle {
    nodes {
      avatar {
        src
      }
      bannerImage {
        src
      }
    }
  }
}

returns something similar to:

{
  "data": {
    "allContentfulArticle": {
      "nodes": [
        {
          "avatar": {
            "src": "https://fourbottle.imgix.net/heroes/pourover.jpg"
          },
          "bannerImage": {
            "src": "https://fourbottle.imgix.net/heroes/light-scatter.jpg"
          }
        }
      ]
    }
  },
  "extensions": {}
}

Transforming Assets

Developers can leverage the power of imgix's rendering API downstream from where the asset was selected in Contentful. We recommend piping the value of the src field of the asset through to one of imgix's SDKs. The example below builds on the previous one by passing the image src through to @imgix/gatsby component:

import React from 'react';
import { graphql } from 'gatsby';
import { ImgixGatsbyImage } from '@imgix/gatsby';

export default function Page({ data }) {
  return data.allContentfulArticle.nodes.map(({ node }) => (
    <ImgixGatsbyImage
      src={node.avatar.src}
      imgixParams={{
        auto: 'format,compress',
        crop: 'faces,edges',
      }}
      layout="constrained"
      width={350}
      aspectRatio={16 / 9}
      sizes="(min-width: 1024px) calc(30vw - 128px), (min-width: 768px) calc(50vw - 100px), calc(100vw - 70px)"
      alt="An imgix-served image from Contentful"
    />
  ));
}

export const query = graphql`
  query MyQuery {
    allContentfulArticle {
      nodes {
        avatar {
          src
        }
      }
    }
  }
`;

Metadata

Users may also access metadata associated with an asset via the attributes field. Refer to the imgix documentation to learn more about the various types of metadata available on images and how to use them.

query MyQuery {
  allContentfulArticle {
    nodes {
      bannerImage {
        src
        attributes {
          analyzed_content_warnings
          analyzed_faces
          analyzed_tags
          color_model
          color_profile
          content_type
          custom_fields
          date_created
          date_modified
          dpi_height
          dpi_width
          face_count
          file_size
          has_frames
          media_height
          media_kind
          media_width
          origin_path
          source_id
          tags
          uploaded_by_api
          warning_adult
          warning_medical
          warning_racy
          warning_spoof
          warning_violence
        }
      }
    }
  }
}

returns something similar to:

{
  "data": {
    "allContentfulArticle": {
      "nodes": [
        {
          "bannerImage": {
            "src": "https://fourbottle.imgix.net/heroes/woman-stirring.jpg",
            "attributes": {
              "analyzed_content_warnings": true,
              "analyzed_faces": true,
              "analyzed_tags": true,
              "color_model": "RGB",
              "color_profile": "c2",
              "content_type": "image/jpeg",
              "custom_fields": "\"\"",
              "date_created": 1625796011,
              "date_modified": 1642786873,
              "dpi_height": 72,
              "dpi_width": 72,
              "face_count": 1,
              "file_size": 3411741,
              "has_frames": false,
              "media_height": 4000,
              "media_kind": "IMAGE",
              "media_width": 6000,
              "origin_path": "/heroes/woman-stirring.jpg",
              "source_id": "5f73d9798d5327eb5194d54a",
              "tags": "{\"Arm\":0.9448454976081848,\"Cup\":0.8950006365776062,\"Drinkware\":0.9177042841911316,\"Glasses\":0.9809675216674805,\"Hand\":0.9596579074859619,\"Joint\":0.9762823581695557,\"Photograph\":0.94278883934021,\"Shoulder\":0.9465579986572266,\"Tableware\":0.949840784072876,\"Vision care\":0.9289617538452148}",
              "uploaded_by_api": false,
              "warning_adult": 1,
              "warning_medical": 1,
              "warning_racy": 2,
              "warning_spoof": 1,
              "warning_violence": 1
            }
          }
        }
      ]
    }
  }
}

Note: Certain fields under attributes are returned as strings to provide better resiliency when used with GraphQL. Therefore, these fields (custom_fields, tags, colors.dominant_colors) will need to be parsed back into JSON objects after being queried. The example below demonstrates how to do this:

export default function Page({ data }) {
  return data.allContentfulArticle.edges.map(({ node }) => (
    <div className="p-4 lg:w-1/3 md:w-1/2 sm:w-full">
      <ImgixGatsbyImage
        src={node.bannerImage.src}
        imgixParams={{
          auto: 'format,compress',
          crop: 'faces,edges',
        }}
        layout="constrained"
        width={350}
        aspectRatio={16 / 9}
        sizes="(min-width: 1024px) calc(30vw - 128px), (min-width: 768px) calc(50vw - 100px), calc(100vw - 70px)"
        alt="An imgix-served image from Contentful"
      />
      {node.bannerImage.attributes.custom_fields ? (
        Object.entries(
          JSON.parse(node.bannerImage.attributes.custom_fields),
        ).map(([key, value]) => (
          <p>
            {key}: {value}
          </p>
        ))
      ) : (
        <br></br>
      )}
      {Object.entries(
        JSON.parse(node.bannerImage.attributes.colors.dominant_colors),
      ).map(([key, value]) => (
        <p>
          {key}: {value}
        </p>
      ))}
      {Object.entries(JSON.parse(node.bannerImage.attributes.tags)).map(
        ([key, value]) => (
          <p>
            {key}: {value}
          </p>
        ),
      )}
    </div>
  ));
}

export const query = graphql`
  {
    allContentfulArticle {
      edges {
        node {
          bannerImage {
            src
            attributes {
              custom_fields
              colors {
                dominant_colors
              }
              tags
            }
          }
        }
      }
    }
  }
`;

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