# CFReadStreamCreateForHTTPRequest(_:_:) Creates a read stream for a CFHTTP request message. ``` func CFReadStreamCreateForHTTPRequest(_ alloc: CFAllocator?, _ request: CFHTTPMessage) -> Unmanaged ``` ## Parameters `alloc` The allocator to use to allocate memory for the new object. Pass `NULL` or kCFAllocatorDefault to use the current default allocator. `request` A CFHTTP request message whose body and headers have been set. ## Return Value A new read stream, or `NULL` if there was a problem creating the object. Ownership follows the [The Create Rule](https://developer.apple.com/library/archive/documentation/CoreFoundation/Conceptual/CFMemoryMgmt/Concepts/Ownership.html#//apple_ref/doc/uid/20001148-103029). ## Discussion This function creates a read stream and associates it with the specified request. Automatic redirection is disabled by default. After creating the read stream, you can call at any time to check the status of the stream. You may want to call `CFHTTPReadStreamSetRedirectsAutomatically` to enable automatic redirection, or `CFHTTPReadStreamSetProxy` to set the name and port number for a proxy. To serialize the request and send it, call . If the body of the request is too long to keep in memory, call [`CFReadStreamCreateForStreamedHTTPRequest(_:_:_:)`](/documentation/CFNetwork/CFReadStreamCreateForStreamedHTTPRequest(_:_:_:)) instead of this function. --- 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)