Learn how to use AEM’s Assets REST API to manage Content Fragments and the GraphQL API for headless delivery of Content Fragment content.
Now that you have created some content fragments, you can use AEM’s APIs to deliver them headlessly.
The remainder of this guide focuses on GraphQL access and Content Fragment delivery.
Information architects must design queries for their channel endpoints to deliver content. These queries only must be considered once per endpoint per model. For the purposes of this getting started guide, you only must create one.
Log into AEM and access the GraphiQL interface:
http://<host>:<port>/aem/graphiql.html
.The GraphiQL is an in-browser query editor for GraphQL. You can use it to build queries to retrieve Content Fragments to deliver them heedlessly as JSON.
Assuming that the model you created was called person
with fields firstName
, lastName
, and position
, you can build a simple query to retrieve the content of the Content Fragment.
query
{
personList {
items {
_path
firstName
lastName
position
}
}
}
Enter the query into the left panel.
Click the Execute Query (right arrow) icon or use the Ctrl-Enter
hotkey and the results are displayed as JSON in the right panel.
Click:
GraphQL enables structured queries that can target not only specific data sets or individual data objects, but can also deliver specific elements of the objects, nested results, offers support for query variables, and much more.
GraphQL can avoid iterative API requests and over-delivery. Instead, it allows for bulk delivery of exactly what is needed for rendering as a response to a single API query. The resulting JSON can be used to deliver data to other sites or apps.
That’s it! You now have a basic understanding of headless content management in AEM. There are many more resources where you can dive deeper for a comprehensive understanding of the features available.