UpgradeProtocol class

A single protocol entry in an Upgrade header.

protocol         = protocol-name ["/" protocol-version]
protocol-name    = token
protocol-version = token

protocol-version is therefore an opaque token (e.g. 13 for WebSocket, 2 for HTTP/2, 6.9 for IRC); it is not a number. Storing it as a string preserves whatever the peer sent and avoids HTTP/2 and HTTP/2.0 collapsing into the same value on the wire.

Constructors

UpgradeProtocol({required String protocol, String? version})

Constructs an UpgradeProtocol instance with the specified name and version.

UpgradeProtocol.parse(String value)

Parses a protocol string and returns an UpgradeProtocol instance.

factory

Properties

hashCode → int

The hash code for this object.

no setter, override

protocol → String

The name of the protocol (a token, e.g. HTTP, WebSocket).

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

version → String?

The version of the protocol (a token), or null when absent.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override