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# CFHTTPMessageIsHeaderComplete(_:)

Determines whether a message header is complete.

```
func CFHTTPMessageIsHeaderComplete(_ message: CFHTTPMessage) -> Bool
```

## Parameters

`message`

The message to verify.

## Discussion

After calling [`CFHTTPMessageAppendBytes(_:_:_:)`](/documentation/CFNetwork/CFHTTPMessageAppendBytes(_:_:_:)), call this function to see if the message header is complete.

---

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