# XPCListener.IncomingSessionRequest A session request from a client that you accept or reject. ``` class IncomingSessionRequest ``` ## Overview When a client initiates a connection to a listener, the system passes the incoming session request to the listener. In response, the listener calls one of the `accept` methods to complete the connection with the client, or it rejects the request. ## Topics ### Responding to client sessions requests [`func accept((XPCSession) -> Handler) -> XPCListener.IncomingSessionRequest.Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(_:)-73k8w) Accepts an incoming session request from a client, delegating incoming encodable messages to a separate object. [`func accept((XPCSession) -> Handler) -> XPCListener.IncomingSessionRequest.Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(_:)-35eh9) Accepts an incoming session request from a client, delegating incoming received messages to a separate object. [`func accept((XPCSession) -> Handler) -> XPCListener.IncomingSessionRequest.Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(_:)-tkrp) Accepts an incoming session request from a client, delegating incoming dictionary messages to a separate object. [`func accept(incomingMessageHandler: (Message) -> (any Encodable)?, cancellationHandler: ((XPCRichError) -> Void)?) -> XPCListener.IncomingSessionRequest.Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(incomingMessageHandler:cancellationHandler:)-56fch) Accepts an incoming session request from a client using closures to handle encodable messages or cancellation, and returns the inactive session. [`func accept(incomingMessageHandler: (XPCReceivedMessage) -> (any Encodable)?, cancellationHandler: ((XPCRichError) -> Void)?) -> XPCListener.IncomingSessionRequest.Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(incomingMessageHandler:cancellationHandler:)-9oa3z) Accepts an incoming session request from a client using closures to handle received messages or cancellation, and returns the inactive session. [`func accept(incomingMessageHandler: (XPCDictionary) -> XPCDictionary?, cancellationHandler: ((XPCRichError) -> Void)?) -> XPCListener.IncomingSessionRequest.Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(incomingMessageHandler:cancellationHandler:)-8rodk) Accepts an incoming session request from a client using closures to handle dictionary messages or cancellation, and returns the inactive session. [`func accept(incomingMessageHandler: (Message) -> (any Encodable)?, cancellationHandler: ((XPCRichError) -> Void)?) -> (XPCListener.IncomingSessionRequest.Decision, XPCSession)`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(incomingMessageHandler:cancellationHandler:)-50tzb) Accepts an incoming session request from a client using a closure to handle encodable messages, and returns the inactive session. [`func accept(incomingMessageHandler: (XPCReceivedMessage) -> (any Encodable)?, cancellationHandler: ((XPCRichError) -> Void)?) -> (XPCListener.IncomingSessionRequest.Decision, XPCSession)`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(incomingMessageHandler:cancellationHandler:)-6oelg) Accepts an incoming session request from a client using a closure to handle received messages, and returns the inactive session. [`func accept(incomingMessageHandler: (XPCDictionary) -> XPCDictionary?, cancellationHandler: ((XPCRichError) -> Void)?) -> (XPCListener.IncomingSessionRequest.Decision, XPCSession)`](/documentation/XPC/XPCListener/IncomingSessionRequest/accept(incomingMessageHandler:cancellationHandler:)-48c3k) Accepts an incoming session request from a client using a closure to handle dictionary messages, and returns the inactive session. [`func reject(reason: String) -> XPCListener.IncomingSessionRequest.Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/reject(reason:)) Rejects an incoming client session request. [`struct Decision`](/documentation/XPC/XPCListener/IncomingSessionRequest/Decision) An opaque type that indicates whether a listener accepts or rejects an incoming session request. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)