# Publishers.MakeConnectable A publisher that provides explicit connectability to another publisher. ``` struct MakeConnectable where Upstream : Publisher ``` ## Overview [`Publishers.MakeConnectable`](/documentation/Combine/Publishers/MakeConnectable) is a [`ConnectablePublisher`](/documentation/Combine/ConnectablePublisher), which allows you to perform configuration before publishing any elements. Call [`connect()`](/documentation/Combine/ConnectablePublisher/connect()) on this publisher when you want to attach to its upstream publisher and start producing elements. Use the [`makeConnectable()`](/documentation/Combine/Publisher/makeConnectable()) operator to wrap an upstream publisher with an instance of this publisher. ## Topics ### Creating a connectable publisher [`init(upstream:)`](/documentation/Combine/Publishers/MakeConnectable/init(upstream:)) Creates a connectable publisher, attached to the provide upstream publisher. ### Declaring supporting types [`Publishers.MakeConnectable.Output`](/documentation/Combine/Publishers/MakeConnectable/Output) The kind of values published by this publisher. [`Publishers.MakeConnectable.Failure`](/documentation/Combine/Publishers/MakeConnectable/Failure) The kind of errors this publisher might publish. --- 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)