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net/http: document ResponseWriter.WriteHeader more

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Change-Id: I65209b90ed7c56d4c751b3e4b3ce1de52dae368c
Reviewed-on: https://go-review.googlesource.com/82635
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Brad Fitzpatrick 2017-12-07 20:08:21 +00:00
parent 95fab851fc
commit fdf3ceafc6
1 changed files with 10 additions and 2 deletions
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12
src/net/http/server.go
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@ -132,12 +132,20 @@ type ResponseWriter interface {
// possible to maximize compatibility.
Write([]byte) (int, error)
// WriteHeader sends an HTTP response header with status code.
// WriteHeader sends an HTTP response header with the provided
// status code.
//
// If WriteHeader is not called explicitly, the first call to Write
// will trigger an implicit WriteHeader(http.StatusOK).
// Thus explicit calls to WriteHeader are mainly used to
// send error codes.
WriteHeader(int)
//
// The provided code must be a valid HTTP 1xx-5xx status code.
// Only one header may be written. Go does not currently
// support sending user-defined 1xx informational headers,
// with the exception of 100-continue response header that the
// Server sends automatically when the Request.Body is read.
WriteHeader(statusCode int)
}
// The Flusher interface is implemented by ResponseWriters that allow