addded services

chessstars/internal/httpx/json.go

@@ -0,0 +1,21 @@
+package httpx
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+func WriteJSON(w http.ResponseWriter, status int, v any) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	_ = json.NewEncoder(w).Encode(v)
+}
+
+func Error(w http.ResponseWriter, status int, msg string) {
+	WriteJSON(w, status, map[string]any{"ok": false, "error": msg})
+}
+
+func ReadJSON(r *http.Request, v any) error {
+	dec := json.NewDecoder(r.Body)
+	return dec.Decode(v)
+}