diff --git a/.gitignore b/.gitignore
index fa2cadf..2fe81d2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
+venv
 demo/__pycache__
 demo/views/__pycache__
diff --git a/demo/__init__.py b/demo/__init__.py
index b23f70e..819ccf0 100644
--- a/demo/__init__.py
+++ b/demo/__init__.py
@@ -1 +1 @@
-from .app import create_app
\ No newline at end of file
+from .app import create_app
diff --git a/demo/app.py b/demo/app.py
index 4fe0516..814e84e 100644
--- a/demo/app.py
+++ b/demo/app.py
@@ -7,7 +7,7 @@ import aiohttp_jinja2
 async def create_app():
     app = web.Application()
     aiohttp_jinja2.setup(app,
-        loader = jinja2.PackageLoader('demo', 'templates')
-        )
+                         loader=jinja2.PackageLoader('demo', 'templates')
+                         )
     setup_routes(app)
-    return app 
+    return app
diff --git a/demo/routes.py b/demo/routes.py
index db9a4a5..f333bef 100644
--- a/demo/routes.py
+++ b/demo/routes.py
@@ -2,5 +2,5 @@ from .views import frontend
 import aiohttp
 
 def setup_routes(app):
-  app.router.add_routes([aiohttp.web.get('/', frontend.index), aiohttp.web.post('/submit', frontend.button_clicked)])
+  app.router.add_routes([aiohttp.web.get('/', frontend.index), aiohttp.web.post('/button-clicked', frontend.button_clicked)])
   
\ No newline at end of file
diff --git a/demo/templates/index.html b/demo/templates/index.html
index a613686..73473d9 100644
--- a/demo/templates/index.html
+++ b/demo/templates/index.html
@@ -1,93 +1,96 @@
 <!DOCTYPE html>
 <html lang="en">
-  <head>
-    <meta charset="UTF-8" />
+<head>
+    <meta charset="UTF-8"/>
     <title>Знакомство с aiohttp</title>
     <style>
-      html {
-        font-family: Verdana, "sans-serif";
-      }
+        html {
+            font-family: Verdana, "sans-serif";
+        }
 
-      body {
-        min-height: 100vh;
-        background: linear-gradient(90deg, rgba(2,0,36,1) 0%, rgba(9,9,121,1) 35%, rgba(0,212,255,1) 100%)
-      }
+        body {
+            min-height: 100vh;
+            background: linear-gradient(90deg, rgba(2, 0, 36, 1) 0%, rgba(9, 9, 121, 1) 35%, rgba(0, 212, 255, 1) 100%)
+        }
 
-      h1 {
-        text-align: center;
-        color: white;
-        text-shadow: 0 2px 5px rgba(150, 150, 150, 0.8);
-      }
+        h1 {
+            text-align: center;
+            color: white;
+            text-shadow: 0 2px 5px rgba(150, 150, 150, 0.8);
+        }
 
-      #root {
-        display: flex;
-        flex-direction: column;
-        align-items: center;
-      }
+        #root {
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+        }
 
 
-      .form {
-        width: 70%;
-        margin-bottom: 20px;
-      }
+        .form {
+            width: 70%;
+            margin-bottom: 20px;
+        }
 
-      .form__button {
-        text-align: center;
-        margin-top: 10px;
-        background-color: white;
-        cursor: pointer;
-      }
+        .form__button {
+            text-align: center;
+            margin-top: 10px;
+            background-color: white;
+            cursor: pointer;
+        }
 
-      #myButton {
-        box-sizing: border-box;
-        width: 100%;
-        font-size: 18px;
-        outline: none;
-        border: none;
-        padding: 20px;
-        border-radius: 5px;
-        -webkit-transition: 0.3s;
-        -moz-transition: 0.3s;
-        transition: 0.3s;
-        -webkit-box-shadow: 0px 5px 5px 0px rgba(0, 0, 0, 0.1);
-        -moz-box-shadow: 0px 5px 5px 0px rgba(0, 0, 0, 0.1);
-        box-shadow: 0px 5px 5px 0px rgba(0, 0, 0, 0.1);
-      }
+        #myButton {
+            box-sizing: border-box;
+            width: 100%;
+            font-size: 18px;
+            outline: none;
+            border: none;
+            padding: 20px;
+            border-radius: 5px;
+            -webkit-transition: 0.3s;
+            -moz-transition: 0.3s;
+            transition: 0.3s;
+            -webkit-box-shadow: 0px 5px 5px 0px rgba(0, 0, 0, 0.1);
+            -moz-box-shadow: 0px 5px 5px 0px rgba(0, 0, 0, 0.1);
+            box-shadow: 0px 5px 5px 0px rgba(0, 0, 0, 0.1);
+        }
 
-      #myButton:hover {
-        -webkit-transition: 0.3s;
-        -moz-transition: 0.3s;
-        transition: 0.3s;
-        -webkit-box-shadow: 0 5px 5px 0 rgba(0, 0, 0, 0.5);
-        -moz-box-shadow: 0 5px 5px 0 rgba(0, 0, 0, 0.5);
-        box-shadow: 0 5px 5px 0 rgba(0, 0, 0, 0.5);
-      }
-      #myResult {
-        text-align: center;
-        color: white;
-        text-shadow: 0 2px 5px rgba(150, 150, 150, 0.8);
-      }
+        #myButton:hover {
+            -webkit-transition: 0.3s;
+            -moz-transition: 0.3s;
+            transition: 0.3s;
+            -webkit-box-shadow: 0 5px 5px 0 rgba(0, 0, 0, 0.5);
+            -moz-box-shadow: 0 5px 5px 0 rgba(0, 0, 0, 0.5);
+            box-shadow: 0 5px 5px 0 rgba(0, 0, 0, 0.5);
+        }
+
+        #myResult {
+            text-align: center;
+            color: white;
+            text-shadow: 0 2px 5px rgba(150, 150, 150, 0.8);
+        }
     </style>
     <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
-  </head>
-  <body>
-    <div>
-      <h1>Знакомство с aiohttp</h1>
-      <div id="root">
+</head>
+<body>
+<div>
+    <h1>Знакомство с aiohttp</h1>
+    <div id="root">
         <div class="form">
-          <div class="form__button"><button id='myButton'>Отправить</button></div>
-          <p id="myResult"></p>
+            <div class="form__button">
+                <button id='myButton'>Отправить</button>
+            </div>
+            <p id="myResult"></p>
         </div>
     </div>
-  </body>
-  <script>
-    $(document).ready(function() {
-        $("#myButton").click(function() {
+</body>
+<script>
+    $(document).ready(function () {
+        $("#myButton").click(function () {
             $.ajax({
                 type: "POST",
                 url: "/button-clicked",
                 dataType: "json",
-                success: function(response) {
+                success: function (response) {
                     $("#myResult").text(response.result);
                 }
             });
diff --git a/demo/views/__init__.py b/demo/views/__init__.py
index 76c69e8..20f280e 100644
--- a/demo/views/__init__.py
+++ b/demo/views/__init__.py
@@ -1 +1 @@
-from . import frontend
\ No newline at end of file
+from . import frontend
diff --git a/demo/views/frontend.py b/demo/views/frontend.py
index ef6e0e2..25525d2 100644
--- a/demo/views/frontend.py
+++ b/demo/views/frontend.py
@@ -10,8 +10,4 @@ async def index(request):
 
 
 async def button_clicked(request):
-    data = await request.post()
-    text = data.get('text')
-    response_text = f'Вы ввели: {text}'
-    print(response_text)
-    return aiohttp.web.Response(text=response_text)
\ No newline at end of file
+    return aiohttp.web.json_response({'result':'Button was clicked'})
\ No newline at end of file
diff --git a/entry.py b/entry.py
index e472c3b..de968e0 100644
--- a/entry.py
+++ b/entry.py
@@ -11,4 +11,4 @@ app = create_app()
 
 
 if __name__ == '__main__':
-	aiohttp.web.run_app(app)
\ No newline at end of file
+  aiohttp.web.run_app(app)
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..dfb4018
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+aiohttp~=3.8.4
+Jinja2~=3.1.2
\ No newline at end of file
