Extending the Layout Service

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If you want to customize the output of the Layout Service, you have the following options:

Extending context data returned by the Layout Service.
Customizing the Layout Service rendering output.
Customize the serialization of a Sitecore field.
Using a custom Layout Service configuration with JSS.

Security considerations

The Layout Service output is not secure and can be inspected client-side. Treat it like an open API, ensuring you are not exposing sensitive or excess data.

When extending Sitecore Context object or building custom Rendering Content Resolvers:

Only add fields necessary for front-end components. For example, do not inject the entire Sitecore Context object from back-end Sitecore pipelines into the Layout Service response.
Add data that represents the global app state and must be accessed by multiple components.
Avoid exposing sensitive information. Be aware of serialization depth to avoid accidentally exposing additional data through complex objects.

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