Create network connections to send and receive data using transport and security protocols.
SDKs
Use this framework when you need direct access to protocols like TLS, TCP, and UDP for your custom application protocols. Continue to use URLSession, which is built upon this framework, for loading HTTP- and URL-based resources.
class NWConnectionA bidirectional data connection between a local endpoint and a remote endpoint.
class NWListenerAn object you use to listen for incoming network connections.
enum NWEndpointAn endpoint in a network connection.
class NWParametersAn object that stores the protocols to use for connections, options for sending data, and network path constraints.
struct NWPathAn object that contains information about the properties of the network used by a connection, or that are available to your app.
class NWPathAn observer that you use to monitor and react to network changes.
struct NWInterfaceA network interface used by a network connection to send and receive data.
Types that define the identity of a protocol, the options to use at setup time, and the available dynamic properties.
class NWProtocolThe abstract superclass used by Network framework protocols and by custom network protocols that you define.
class NWProtocolThe abstract superclass for identifying a network protocol.
class NWProtocolThe abstract superclass for specifying metadata about a network protocol.
class NWProtocolThe abstract superclass for configuring the options of a network protocol.
class NWProtocolA network protocol you use for connections that use the Internet Protocol.
class NWProtocolA network protocol you use for connections that use the Transmission Control Protocol.
class NWProtocolA network protocol you use for connections that use the User Datagram Protocol.
class NWProtocolA network protocol you use for connections that use the Transport Layer Security protocol.
enum NWErrorThe errors thrown by the Network framework.
Beta Software
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.
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