Is CFHTTPMessage support http2?

Question

zizhu OP

Created Nov ’19

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I use the CFNetwork API to create httpmessage like bellow

CFHTTPMessageCreateRequest(CFAllocatorRef __nullable alloc, CFStringRef requestMethod, CFURLRef url, CFStringRef httpVersio

when I passed kCFHTTPVersion1_1 to the httpVersion param, it work fine. But not with kCFHTTPVersion2_0.

And then I found the document for the httpVersion param described as

The HTTP version for this message. Pass kCFHTTPVersion1_0 or kCFHTTPVersion1_1.

So, Is it the CFHTTPMessageCreateRequest api can not pass kCFHTTPVersion2_0?

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Answer 1

DTS Engineer OP

Apple

Nov ’19

CFHTTPMessage

is very much focused on HTTP 1.x. It does not support HTTP/2 in any way shape or form. Indeed, parsing and rendering HTTP/2 introduces complexities that just can’t be handled by the

CFHTTPMessage

API.

Why do you need this? HTTP/2 is quite complex, so it’s hard to imagine a situation where you’d have code to handle HTTP/2 that doesn’t also handle HTTP/2 message parsing and rendering.

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