diff --git a/lib/src/http/request/request.dart b/lib/src/http/request/request.dart
index 84676db..12a3850 100644
--- a/lib/src/http/request/request.dart
+++ b/lib/src/http/request/request.dart
@@ -1,3 +1,4 @@
+import 'dart:convert';
 import 'dart:io';
 import 'package:vania/src/exception/validation_exception.dart';
 import 'package:vania/src/http/request/request_body.dart';
@@ -150,6 +151,18 @@ class Request {
     return requestItems;
   }
 
+  Map json(String key) {
+    if (_all[key] != null && _all[key] is String) {
+      return jsonDecode(_all[key]);
+    }
+
+    if (_all[key] != null && _all[key] is Map) {
+      return _all[key];
+    }
+
+    return {};
+  }
+
   dynamic input([String? key, dynamic defaultVal]) {
     if (key == null) {
       return _all;
diff --git a/lib/src/http/request/request_body.dart b/lib/src/http/request/request_body.dart
index 66a1643..8bb1713 100644
--- a/lib/src/http/request/request_body.dart
+++ b/lib/src/http/request/request_body.dart
@@ -4,8 +4,9 @@ import 'dart:io';
 import 'package:vania/src/http/request/request_form_data.dart';
 
 String _fixJsonString(String jsonString) {
-  return jsonString.replaceAllMapped(RegExp(r'("\w+": )(\d+)([\s,}])'),
-      (Match match) => '${match[1]}"${match[2]}"${match[3]}');
+  return jsonString.replaceAllMapped(
+      RegExp(r'("\w+":)\s*(\d+|\d+\.\d+)([\s,}])'),
+      (Match match) => '${match[1]}${match[2]}${match[3]}');
 }
 
 class RequestBody {