print headers in sorted order

1 files changed, 13 insertions, 2 deletions

diff --git a/main.go b/main.go
index e37cc2e..ed2b871 100644
--- a/main.go
+++ b/main.go
@@ -4,6 +4,7 @@ import (
         "fmt"
         "log"
         "net/http"
+        "slices"
 )
 
 func main() {
@@ -13,7 +14,9 @@ func main() {
                 fmt.Fprintf(w, "URL: %v\n", r.URL)
                 fmt.Fprintf(w, "Proto: %v\n", r.Proto)
                 fmt.Fprintf(w, "Header:\n")
-                for key, value := range r.Header {
+
+                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)
@@ -21,9 +24,17 @@ func main() {
                         fmt.Fprintf(w, "\n")
                 }
                 fmt.Fprintf(w, "RemoteAddr: %v\n", r.RemoteAddr)
-                w.WriteHeader(http.StatusOK)
         })
         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
+}