CODEWITHSUNDEEP
go
Nick H
Nick H

Reputation: 2035

How to set HTTP status code on http.ResponseWriter

How do I set the HTTP status code on an http.ResponseWriter (e.g. to 500 or 403)?

I can see that requests normally have a status code of 200 attached to them.

Upvotes: 154

Views: 174435

Answers (3)

user142162
user142162

Reputation:

Use http.ResponseWriter.WriteHeader. From the documentation:

WriteHeader sends an HTTP response header with 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.

Example:

func ServeHTTP(w http.ResponseWriter, r *http.Request) {
    w.WriteHeader(http.StatusInternalServerError)
    w.Write([]byte("500 - Something bad happened!"))
}

Upvotes: 251

Yandry Pozo
Yandry Pozo

Reputation: 5123

Apart from WriteHeader(int) you can use the helper method http.Error, for example:

func yourFuncHandler(w http.ResponseWriter, r *http.Request) {

    http.Error(w, "my own error message", http.StatusForbidden)

    // or using the default message error

    http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
}

http.Error() and http.StatusText() methods are your friends

Upvotes: 136

Marsel Novy
Marsel Novy

Reputation: 1817

w.WriteHeader(http.StatusInternalServerError)
w.WriteHeader(http.StatusForbidden)

full list here

Upvotes: 41

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