HeaderExtractable<T> class final

Extracts one header, coerced to T.

Header names are matched case-insensitively. A nullable T makes the header optional.

Implemented types
Available extensions

Constructors

HeaderExtractable(String name)
Reads the header named name.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
name → String
The header name.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

extract(Request request) → Future<Result<T, Rejection>>
Produces the value, or the rejection that stops the handler.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
require(Request request) → Future<T>

Available on FromRequestParts<T>, provided by the RequireExtraction extension

Extracts the value, throwing the Rejection when extraction fails.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited