QueryExtractable<T> class final

Extracts one query value, coerced to T.

A nullable T makes the value optional; a non-nullable T rejects with 400 when the key is absent.

Implemented types
Available extensions

Constructors

QueryExtractable(String key)
Reads the query value named key.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
key → String
The query key.
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