Курнат Андрей
21 lines
558 B
Go
21 lines
558 B
Go
package httperr
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import "net/http"
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// The HandlerFunc type is an adapter to allow the use of
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// ordinary functions as HTTP handlers. If f is a function
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// with the appropriate signature, HandlerFunc(f) is a
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// Handler object that calls f.
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type HandlerFunc func(http.ResponseWriter, *http.Request) error
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// ServeHTTP calls f(w, r).
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func (f HandlerFunc) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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if err := f(w, r); err != nil {
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if v := r.Context().Value(onErrorIndex); v != nil {
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v.(func(error))(err)
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} else {
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Write(w, r, err)
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}
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}
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}
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