72c9f2ee75
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36 lines
625 B
Go
36 lines
625 B
Go
package main
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import (
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"errors"
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"net/http"
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"github.com/go-chi/chi/v5"
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)
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type Handler func(w http.ResponseWriter, r *http.Request) error
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func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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if err := h(w, r); err != nil {
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// handle returned error here.
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w.WriteHeader(503)
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w.Write([]byte("bad"))
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}
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}
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func main() {
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r := chi.NewRouter()
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r.Method("GET", "/", Handler(customHandler))
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http.ListenAndServe(":3333", r)
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}
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func customHandler(w http.ResponseWriter, r *http.Request) error {
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q := r.URL.Query().Get("err")
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if q != "" {
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return errors.New(q)
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}
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w.Write([]byte("foo"))
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return nil
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}
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