# CFHTTPMessageCreateResponse(_:_:_:_:) Creates and returns a `CFHTTPMessage` object for an HTTP response. ``` func CFHTTPMessageCreateResponse(_ alloc: CFAllocator?, _ statusCode: CFIndex, _ statusDescription: CFString?, _ httpVersion: CFString) -> Unmanaged ``` ## Parameters `statusCode` The status code for this message response. The status code can be any of the status codes defined in section 6.1.1 of RFC 2616. `statusDescription` The description that corresponds to the status code. Pass NULL to use the standard description for the given status code, as found in RFC 2616. `httpVersion` The HTTP version for this message response. Pass `kCFHTTPVersion1_0` or `kCFHTTPVersion1_1`. ## Return Value A new `CFHTTPMessage` object, 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 returns a `CFHTTPMessage` object that you can use to build an HTTP response. Continue building the response by calling[`CFHTTPMessageSetBody(_:_:)`](/documentation/CFNetwork/CFHTTPMessageSetBody(_:_:)) to set the message’s body. Call [`CFHTTPMessageSetHeaderFieldValue(_:_:_:)`](/documentation/CFNetwork/CFHTTPMessageSetHeaderFieldValue(_:_:_:)) to set the message’s headers. Then call [`CFHTTPMessageCopySerializedMessage(_:)`](/documentation/CFNetwork/CFHTTPMessageCopySerializedMessage(_:)) to make the message ready for transmission by serializing it. --- 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)