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package main
import (
"fmt"
"log"
"net/http"
"slices"
)
func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
log.Print(r)
fmt.Fprintf(w, "Method: %v\n", r.Method)
fmt.Fprintf(w, "URL: %v\n", r.URL)
fmt.Fprintf(w, "Proto: %v\n", r.Proto)
fmt.Fprintf(w, "Header:\n")
for _, key := range headerSortedKeys(r.Header) {
value := r.Header[key]
fmt.Fprintf(w, "\t%v: ", key)
for _, v := range value {
fmt.Fprintf(w, "'%v' ", v)
}
fmt.Fprintf(w, "\n")
}
fmt.Fprintf(w, "RemoteAddr: %v\n", r.RemoteAddr)
})
if err := http.ListenAndServe(":8000", nil); err != nil {
log.Fatalf("failed to listen and serve: %v", err)
}
}
func headerSortedKeys(header http.Header) []string {
keys := []string{}
for key := range header {
keys = append(keys, key)
}
slices.Sort(keys)
return keys
}
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