Map<String, Object> context
read-only, inherited

Extra context that can be used by for middleware and handlers.

For requests, this is used to pass data to inner middleware and handlers; for responses, it's used to pass data to outer middleware and handlers.

Context properties that are used by a particular package should begin with that package's name followed by a period. For example, if logRequests wanted to take a prefix, its property name would be "shelf.prefix", since it's in the shelf package.

The value is immutable.