loglevel change endpoint

handler_api.go

@@ -1,8 +1,10 @@
 package main
 
 import (
+	"encoding/json"
 	"log/slog"
 	"net/http"
+	"strings"
 )
 
 func (s *Server) handlerRefresh(w http.ResponseWriter, req *http.Request) {
@@ -10,6 +12,8 @@ func (s *Server) handlerRefresh(w http.ResponseWriter, req *http.Request) {
 		http.Error(w, "unauthorized", http.StatusInternalServerError)
 		return
 	}
+	defer req.Body.Close()
+
 	if err := s.c.Refresh(); err != nil {
 		slog.Error("refresh failed", "err", err)
 		http.Error(w, "refresh failed", http.StatusInternalServerError)
@@ -20,8 +24,38 @@ func (s *Server) handlerRefresh(w http.ResponseWriter, req *http.Request) {
 
 func (s *Server) handlerLogLevel(w http.ResponseWriter, req *http.Request) {
 	if req.Header.Get("Authorization") != "Bearer "+s.cfg.Auth.Token {
-		http.Error(w, "unauthorized", http.StatusInternalServerError)
+		respondWithError(w, http.StatusUnauthorized, "unauthorized")
+		return
+	}
+	defer req.Body.Close()
+
+	type reqParameters struct {
+		NewLevel string `json:"loglevel"`
+	}
+
+	decoder := json.NewDecoder(req.Body)
+	reqParams := reqParameters{}
+	err := decoder.Decode(&reqParams)
+	if err != nil {
+		slog.Debug("json decode erro", "err", err)
+		respondWithError(w, http.StatusBadRequest, "invalid request")
 		return
 	}
 
+	switch strings.ToLower(reqParams.NewLevel) {
+	case "debug":
+		s.logLevel.Set(slog.LevelDebug)
+	case "info":
+		s.logLevel.Set(slog.LevelInfo)
+	case "warn":
+		s.logLevel.Set(slog.LevelWarn)
+	case "error":
+		s.logLevel.Set(slog.LevelError)
+	default:
+		respondWithError(w, http.StatusBadRequest, "invalid log level")
+		return
+	}
+
+	slog.Info("log level changed", "level", reqParams.NewLevel)
+	w.WriteHeader(http.StatusNoContent)
 }