gatsby-source-drupal
Source plugin for pulling data (including images) into Gatsby from Drupal sites.
It pulls data from Drupal 8 sites with the
Drupal JSONAPI module installed.
An example site built with the headless Drupal distro
ContentaCMS is at
https://using-drupal.gatsbyjs.org/
apiBase
Option allows changing the API entry point depending on the version of
jsonapi used by your Drupal instance. The default value is jsonapi
, which has
been used since jsonapi version 8.x-1.0-alpha4
.
Install
npm install gatsby-source-drupal
How to use
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
},
},
],
}
On the Drupal side, we highly recommend installing JSON:API
Extras and enabling "Include
count in collection queries" /admin/config/services/jsonapi/extras
as that
speeds up fetching data from Drupal by around
4x.
Filters
You can use the filters
option to limit the data that is retrieved from Drupal. Filters are applied per JSON API collection. You can use any valid JSON API filter query. For large data sets this can reduce the build time of your application by allowing Gatsby to skip content you'll never use.
As an example, if your JSON API endpoint (https://live-contentacms.pantheonsite.io/api) returns the following collections list, then articles
and recipes
are both collections that can have a filters applied:
{
...
links: {
articles: "https://live-contentacms.pantheonsite.io/api/articles",
recipes: "https://live-contentacms.pantheonsite.io/api/recipes",
...
}
}
To retrieve only recipes with a specific tag you could do something like the following where the key (recipe) is the collection from above, and the value is the filter you want to apply.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
filters: {
recipe: "filter[tags.name][value]=British",
},
},
},
],
}
Which would result in Gatsby using the filtered collection https://live-contentacms.pantheonsite.io/api/recipes?filter[tags.name][value]=British to retrieve data.
Basic Auth
You can use basicAuth
option if your site is protected by basicauth.
First, you need a way to pass environment variables to the build process, so secrets and other secured data aren't committed to source control. We recommend using dotenv
which will then expose environment variables. Read more about dotenv and using environment variables here. Then we can use these environment variables and configure our plugin.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
basicAuth: {
username: process.env.BASIC_AUTH_USERNAME,
password: process.env.BASIC_AUTH_PASSWORD,
},
},
},
],
}
Fastbuilds
You can use the fastBuilds
option to enable fastbuilds. This requires the
Gatsby Drupal module (called gatsby_fastbuilds) to be enabled. This will speed
up your development and build process by only downloading content that has
changed since you last ran gatsby build
or gatsby develop
.
This will require authentication to your Drupal site and a Drupal user with the
Drupal permission to sync gatsby fastbuild log entities
.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
basicAuth: {
username: process.env.BASIC_AUTH_USERNAME,
password: process.env.BASIC_AUTH_PASSWORD,
},
fastBuilds: true,
},
},
],
}
You can add optional request headers to the request using headers
param.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
headers: {
Host: "https://example.com",
},
},
},
],
}
GET Search Params
You can append optional GET request params to the request url using params
option.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
params: {
"api-key": "your-api-key-header-here",
},
},
},
],
}
File Downloads
You can use the skipFileDownloads
option if you do not want Gatsby to download
files from your Drupal website. This is useful if you are using another option
for processing/serving images.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
skipFileDownloads: true,
},
},
],
}
You can also filter out temporary files. This will help to avoid Gatsby throwing an error when a 404 is returned from a file that does not exist:
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
filters: {
"file--file": "filter[status][value]=1",
},
},
},
],
}
Concurrent File Requests
You can use the concurrentFileRequests
option to change how many simultaneous file requests are made to the server/service. This benefits build speed, however too many concurrent file request could cause memory exhaustion depending on the server's memory size so change with caution.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
concurrentFileRequests: 60,
},
},
],
}
Concurrent API Requests
You can use the concurrentAPIRequests
option to change how many simultaneous API requests are made to the server/service. 20 is the default and seems to be the fastest for most sites.
Disallowed Link Types
You can use the disallowedLinkTypes
option to skip link types found in JSON:API documents. By default it skips the self
, describedby
, contact_message--feedback
, and contact_message--pesonal
links, which do not provide data that can be sourced. You may override the setting to add additional link types to be skipped.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
disallowedLinkTypes: [
`self`,
`describedby`,
`contact_message--feedback`,
`contact_message--personal`,
],
},
},
],
}
NOTES:
When using includes in your JSON:API calls the included data will automatically become available to query, even if the link types are skipped using disallowedLinkTypes
.
This enables you to fetch only the data you need at build time, instead of all data of a certain entity type or bundle.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
disallowedLinkTypes: [
`self`,
`describedby`,
`node--page`,
`paragraph--text`,
`paragraph--image`,
],
filters: {
"node--news": "include=field_content",
},
},
},
],
}
Entity Reference revisions and relationships
By default gatsby-source-drupal
resolves Entity Reference relationships using just ID. If you are
using the contrib module Entity reference revisions and Paragraphs,
you may have advanced use-cases such as fetching drafts where you want to resolve these relationships using both ID and
revision ID. You can nominate entity-type IDs where you wish to resolve relationships using the revision ID by adding
them to the entityReferenceRevisions
configuration option. Please note that gatsby-source-drupal
only ever fetches
the default (published) revision, so this functionality is only needed in advanced cases where you have custom code
Drupal side that is applying additional logic.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
apiBase: `api`,
entityReferenceRevisions: ["paragraph"],
},
},
],
}
Translations
If you have translations or multilingual enabled on your Drupal site, you can opt-in to sourcing translations of entities. To do this, enable in your plugin's configuration the languages and entity types you'd like to source. E.g.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
languageConfig: {
defaultLanguage: `en`,
enabledLanguages: [`en`, `fil`],
translatableEntities: [`node--article`],
nonTranslatableEntities: [`file--file`],
},
},
},
],
}
Some entities are not translatable like Drupal files and will return null result when language code from parent entity doesn't match up. These items can be specified as nonTranslatableEntities and receive the defaultLanguage as fallback.
Gatsby Preview (experimental)
You will need to have the Drupal module installed, more information on that here: https://www.drupal.org/project/gatsby
In your Drupal module configuration, set the update URL to your Gatsby Preview instance URL.
NOTES:
- This is experimental feature in active development. APIs used for this feature are not yet stable - it can break while we iterate on API design (particularly when versions of
gatsby-source-drupal
and Gatsby Live Preview
Drupal module are incompatible).
Preview Secret
While you don't need to pass any additional options for preview to work, you can pass a secret
for added security between your Drupal instance and Gatsby preview. Ensure this secret matches the one set in your Drupal Gatsby Preview settings.
module.exports = {
plugins: [
{
resolve: `gatsby-source-drupal`,
options: {
baseUrl: `https://live-contentacms.pantheonsite.io/`,
secret: process.env.PREVIEW_SECRET,
},
},
],
}
How to query
You can query nodes created from Drupal like the following:
{
allArticle {
edges {
node {
title
internalId
created(formatString: "DD-MMM-YYYY")
}
}
}
}