diff --git a/CMakeLists_note_server.txt b/CMakeLists_note_server.txt
new file mode 100644
index 0000000000..fd1c5a70d9
--- /dev/null
+++ b/CMakeLists_note_server.txt
@@ -0,0 +1,25 @@
+cmake_minimum_required(VERSION 3.14.0 FATAL_ERROR)
+
+project(note_server LANGUAGES CXX)
+
+# Require C++11
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# Threads needed for <thread> on some systems, and for <pthread.h> on Linux
+set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+find_package(Threads REQUIRED)
+
+# Add executable
+add_executable(note_server note_server.cc)
+
+# Include directory for httplib.h
+target_include_directories(note_server PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
+
+# Link libraries
+target_link_libraries(note_server PRIVATE
+    Threads::Threads
+    $<$<PLATFORM_ID:Windows>:ws2_32>
+    $<$<PLATFORM_ID:Windows>:crypt32>
+)
diff --git a/build_note_server/CMakeCache.txt b/build_note_server/CMakeCache.txt
new file mode 100644
index 0000000000..2cdcba6d17
--- /dev/null
+++ b/build_note_server/CMakeCache.txt
@@ -0,0 +1,109 @@
+# This is the CMakeCache file.
+# For build in directory: d:/DraftsJ/WinCppDraftsJ/WCD2J/SMJ/cpp-httplib/build_note_server
+# It was generated by CMake: D:/ProgrammesJ/CmakeJ/bin/cmake.exe
+# You can edit this file to change values found and used by cmake.
+# If you do not want to change any of the values, simply exit the editor.
+# If you do want to change a value, simply edit, save, and exit the editor.
+# The syntax for the file is as follows:
+# KEY:TYPE=VALUE
+# KEY is the name of a variable in the cache.
+# TYPE is a hint to GUIs for the type of VALUE, DO NOT EDIT TYPE!.
+# VALUE is the current value for the KEY.
+
+########################
+# EXTERNAL cache entries
+########################
+
+//No help, variable specified on the command line.
+CMAKE_BUILD_TYPE:UNINITIALIZED=Release
+
+//Value Computed by CMake.
+CMAKE_FIND_PACKAGE_REDIRECTS_DIR:STATIC=D:/DraftsJ/WinCppDraftsJ/WCD2J/SMJ/cpp-httplib/build_note_server/CMakeFiles/pkgRedirects
+
+//Path to a program.
+CMAKE_MAKE_PROGRAM:FILEPATH=CMAKE_MAKE_PROGRAM-NOTFOUND
+
+//Value Computed by CMake
+CMAKE_PROJECT_COMPAT_VERSION:STATIC=
+
+//Value Computed by CMake
+CMAKE_PROJECT_DESCRIPTION:STATIC=A C++ header-only HTTP/HTTPS server and client library.
+
+//Value Computed by CMake
+CMAKE_PROJECT_HOMEPAGE_URL:STATIC=https://github.com/yhirose/cpp-httplib
+
+//Value Computed by CMake
+CMAKE_PROJECT_NAME:STATIC=httplib
+
+//Value Computed by CMake
+CMAKE_PROJECT_SPDX_LICENSE:STATIC=
+
+//Value Computed by CMake
+CMAKE_PROJECT_VERSION:STATIC=0.37.1
+
+//Value Computed by CMake
+CMAKE_PROJECT_VERSION_MAJOR:STATIC=0
+
+//Value Computed by CMake
+CMAKE_PROJECT_VERSION_MINOR:STATIC=37
+
+//Value Computed by CMake
+CMAKE_PROJECT_VERSION_PATCH:STATIC=1
+
+//Value Computed by CMake
+CMAKE_PROJECT_VERSION_TWEAK:STATIC=
+
+//Value Computed by CMake
+httplib_BINARY_DIR:STATIC=D:/DraftsJ/WinCppDraftsJ/WCD2J/SMJ/cpp-httplib/build_note_server
+
+//Value Computed by CMake
+httplib_IS_TOP_LEVEL:STATIC=ON
+
+//Value Computed by CMake
+httplib_SOURCE_DIR:STATIC=D:/DraftsJ/WinCppDraftsJ/WCD2J/SMJ/cpp-httplib
+
+
+########################
+# INTERNAL cache entries
+########################
+
+//This is the directory where this CMakeCache.txt was created
+CMAKE_CACHEFILE_DIR:INTERNAL=d:/DraftsJ/WinCppDraftsJ/WCD2J/SMJ/cpp-httplib/build_note_server
+//Major version of cmake used to create the current loaded cache
+CMAKE_CACHE_MAJOR_VERSION:INTERNAL=4
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+//Path to cpack program executable.
+CMAKE_CPACK_COMMAND:INTERNAL=D:/ProgrammesJ/CmakeJ/bin/cpack.exe
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+//Name of generator.
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+//Name of generator platform.
+CMAKE_GENERATOR_PLATFORM:INTERNAL=
+//Name of generator toolset.
+CMAKE_GENERATOR_TOOLSET:INTERNAL=
+//Source directory with the top level CMakeLists.txt file for this
+// project
+CMAKE_HOME_DIRECTORY:INTERNAL=D:/DraftsJ/WinCppDraftsJ/WCD2J/SMJ/cpp-httplib
+//Name of CMakeLists files to read
+CMAKE_LIST_FILE_NAME:INTERNAL=CMakeLists.txt
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diff --git a/build_note_server/CMakeFiles/4.3.0-rc2/CMakeSystem.cmake b/build_note_server/CMakeFiles/4.3.0-rc2/CMakeSystem.cmake
new file mode 100644
index 0000000000..88ce3654c3
--- /dev/null
+++ b/build_note_server/CMakeFiles/4.3.0-rc2/CMakeSystem.cmake
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+set(CMAKE_HOST_SYSTEM "Windows-10.0.26200")
+set(CMAKE_HOST_SYSTEM_NAME "Windows")
+set(CMAKE_HOST_SYSTEM_VERSION "10.0.26200")
+set(CMAKE_HOST_SYSTEM_PROCESSOR "AMD64")
+
+
+
+set(CMAKE_SYSTEM "Windows-10.0.26200")
+set(CMAKE_SYSTEM_NAME "Windows")
+set(CMAKE_SYSTEM_VERSION "10.0.26200")
+set(CMAKE_SYSTEM_PROCESSOR "AMD64")
+
+set(CMAKE_CROSSCOMPILING "FALSE")
+
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diff --git a/build_note_server/CMakeFiles/cmake.check_cache b/build_note_server/CMakeFiles/cmake.check_cache
new file mode 100644
index 0000000000..3dccd73172
--- /dev/null
+++ b/build_note_server/CMakeFiles/cmake.check_cache
@@ -0,0 +1 @@
+# This file is generated by cmake for dependency checking of the CMakeCache.txt file
diff --git a/note_server.cc b/note_server.cc
new file mode 100644
index 0000000000..aa0f0a634c
--- /dev/null
+++ b/note_server.cc
@@ -0,0 +1,193 @@
+#include <iostream>
+#include <string>
+#include <map>
+#include <vector>
+#include <cstdint>
+#include <httplib.h>
+
+using namespace httplib;
+
+struct Note {
+    uint64_t id;
+    std::string title;
+    std::string content;
+};
+
+std::map<uint64_t, Note> notes;
+uint64_t next_id = 1;
+
+std::string escape_json(const std::string &s) {
+    std::string result;
+    for (char c : s) {
+        switch (c) {
+            case '"': result += "\\\""; break;
+            case '\\': result += "\\\\"; break;
+            case '\b': result += "\\b"; break;
+            case '\f': result += "\\f"; break;
+            case '\n': result += "\\n"; break;
+            case '\r': result += "\\r"; break;
+            case '\t': result += "\\t"; break;
+            default: result += c; break;
+        }
+    }
+    return result;
+}
+
+std::string note_to_json(const Note &note) {
+    return "{\"id\":" + std::to_string(note.id) + 
+           ",\"title\":\"" + escape_json(note.title) + 
+           "\",\"content\":\"" + escape_json(note.content) + "\"}";
+}
+
+std::string notes_to_json(const std::map<uint64_t, Note> &notes) {
+    std::string result = "[";
+    bool first = true;
+    for (const auto &pair : notes) {
+        if (!first) {
+            result += ",";
+        }
+        result += note_to_json(pair.second);
+        first = false;
+    }
+    result += "]";
+    return result;
+}
+
+std::string trim(const std::string &s) {
+    size_t start = s.find_first_not_of(" \t\n\r");
+    size_t end = s.find_last_not_of(" \t\n\r");
+    if (start == std::string::npos) return "";
+    return s.substr(start, end - start + 1);
+}
+
+bool parse_json_value(const std::string &json, const std::string &key, std::string &value) {
+    std::string search_key = "\"" + key + "\":";
+    size_t pos = json.find(search_key);
+    if (pos == std::string::npos) return false;
+    
+    pos += search_key.length();
+    pos = json.find_first_not_of(" \t\n\r", pos);
+    if (pos == std::string::npos) return false;
+    
+    if (json[pos] == '"') {
+        pos++;
+        size_t end_pos = pos;
+        while (end_pos < json.length()) {
+            if (json[end_pos] == '"' && (end_pos == 0 || json[end_pos - 1] != '\\')) {
+                break;
+            }
+            end_pos++;
+        }
+        if (end_pos < json.length()) {
+            value = json.substr(pos, end_pos - pos);
+            return true;
+        }
+    }
+    return false;
+}
+
+int main(void) {
+    Server svr;
+
+    if (!svr.is_valid()) {
+        std::cerr << "server has an error..." << std::endl;
+        return -1;
+    }
+
+    svr.Post("/notes", [](const Request &req, Response &res) {
+        std::string title, content;
+        if (!parse_json_value(req.body, "title", title) || 
+            !parse_json_value(req.body, "content", content)) {
+            res.status = 400;
+            res.set_content("{\"error\":\"Missing required fields: title and content are required\"}", "application/json");
+            return;
+        }
+        
+        title = trim(title);
+        content = trim(content);
+        
+        if (title.empty()) {
+            res.status = 400;
+            res.set_content("{\"error\":\"Title cannot be empty\"}", "application/json");
+            return;
+        }
+        
+        Note note;
+        note.id = next_id++;
+        note.title = title;
+        note.content = content;
+        notes[note.id] = note;
+        
+        res.status = 201;
+        res.set_content(note_to_json(note), "application/json");
+    });
+
+    svr.Get("/notes", [](const Request & /*req*/, Response &res) {
+        res.set_content(notes_to_json(notes), "application/json");
+    });
+
+    svr.Put(R"(/notes/(\d+))", [](const Request &req, Response &res) {
+        uint64_t id = std::stoull(req.matches[1]);
+        
+        auto it = notes.find(id);
+        if (it == notes.end()) {
+            res.status = 404;
+            res.set_content("{\"error\":\"Note not found\"}", "application/json");
+            return;
+        }
+        
+        std::string title, content;
+        if (!parse_json_value(req.body, "title", title) || 
+            !parse_json_value(req.body, "content", content)) {
+            res.status = 400;
+            res.set_content("{\"error\":\"Missing required fields: title and content are required\"}", "application/json");
+            return;
+        }
+        
+        title = trim(title);
+        content = trim(content);
+        
+        if (title.empty()) {
+            res.status = 400;
+            res.set_content("{\"error\":\"Title cannot be empty\"}", "application/json");
+            return;
+        }
+        
+        it->second.title = title;
+        it->second.content = content;
+        
+        res.set_content(note_to_json(it->second), "application/json");
+    });
+
+    svr.Delete(R"(/notes/(\d+))", [](const Request &req, Response &res) {
+        uint64_t id = std::stoull(req.matches[1]);
+        
+        auto it = notes.find(id);
+        if (it == notes.end()) {
+            res.status = 404;
+            res.set_content("{\"error\":\"Note not found\"}", "application/json");
+            return;
+        }
+        
+        notes.erase(it);
+        res.status = 204;
+    });
+
+    svr.set_error_handler([](const Request & /*req*/, Response &res) {
+        res.set_content("{\"error\":\"Not found\"}", "application/json");
+    });
+
+    std::cout << "Note server starting on http://localhost:8080" << std::endl;
+    std::cout << "Available endpoints:" << std::endl;
+    std::cout << "  POST /notes    - Create a new note" << std::endl;
+    std::cout << "  GET /notes     - Get all notes" << std::endl;
+    std::cout << "  PUT /notes/{id} - Update a note" << std::endl;
+    std::cout << "  DELETE /notes/{id} - Delete a note" << std::endl;
+    std::cout << std::endl;
+    std::cout << "Example request body:" << std::endl;
+    std::cout << "  {\"title\":\"Note Title\",\"content\":\"Note Content\"}" << std::endl;
+    
+    svr.listen("localhost", 8080);
+
+    return 0;
+}
diff --git a/note_server.py b/note_server.py
new file mode 100644
index 0000000000..5e74e55089
--- /dev/null
+++ b/note_server.py
@@ -0,0 +1,157 @@
+from http.server import HTTPServer, BaseHTTPRequestHandler
+import json
+from urllib.parse import urlparse
+
+notes = {}
+next_id = 1
+
+class NoteHandler(BaseHTTPRequestHandler):
+    def _send_response(self, status_code, data=None):
+        self.send_response(status_code)
+        self.send_header('Content-Type', 'application/json')
+        self.send_header('Access-Control-Allow-Origin', '*')
+        self.send_header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS')
+        self.send_header('Access-Control-Allow-Headers', 'Content-Type')
+        self.end_headers()
+        if data is not None:
+            self.wfile.write(json.dumps(data).encode('utf-8'))
+    
+    def do_OPTIONS(self):
+        self.send_response(200)
+        self.send_header('Access-Control-Allow-Origin', '*')
+        self.send_header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS')
+        self.send_header('Access-Control-Allow-Headers', 'Content-Type')
+        self.end_headers()
+    
+    def do_GET(self):
+        parsed_path = urlparse(self.path)
+        if parsed_path.path == '/notes':
+            notes_list = list(notes.values())
+            self._send_response(200, notes_list)
+        else:
+            self._send_response(404, {'error': 'Not found'})
+    
+    def do_POST(self):
+        parsed_path = urlparse(self.path)
+        if parsed_path.path == '/notes':
+            content_length = int(self.headers.get('Content-Length', 0))
+            if content_length == 0:
+                self._send_response(400, {'error': 'Missing request body'})
+                return
+            
+            body = self.rfile.read(content_length).decode('utf-8')
+            try:
+                data = json.loads(body)
+            except json.JSONDecodeError:
+                self._send_response(400, {'error': 'Invalid JSON'})
+                return
+            
+            if 'title' not in data or 'content' not in data:
+                self._send_response(400, {'error': 'Missing required fields: title and content are required'})
+                return
+            
+            title = data['title'].strip()
+            content = data['content'].strip()
+            
+            if not title:
+                self._send_response(400, {'error': 'Title cannot be empty'})
+                return
+            
+            global next_id
+            note = {
+                'id': next_id,
+                'title': title,
+                'content': content
+            }
+            notes[next_id] = note
+            next_id += 1
+            
+            self._send_response(201, note)
+        else:
+            self._send_response(404, {'error': 'Not found'})
+    
+    def do_PUT(self):
+        parsed_path = urlparse(self.path)
+        if parsed_path.path.startswith('/notes/'):
+            try:
+                note_id = int(parsed_path.path.split('/')[2])
+            except (IndexError, ValueError):
+                self._send_response(404, {'error': 'Note not found'})
+                return
+            
+            if note_id not in notes:
+                self._send_response(404, {'error': 'Note not found'})
+                return
+            
+            content_length = int(self.headers.get('Content-Length', 0))
+            if content_length == 0:
+                self._send_response(400, {'error': 'Missing request body'})
+                return
+            
+            body = self.rfile.read(content_length).decode('utf-8')
+            try:
+                data = json.loads(body)
+            except json.JSONDecodeError:
+                self._send_response(400, {'error': 'Invalid JSON'})
+                return
+            
+            if 'title' not in data or 'content' not in data:
+                self._send_response(400, {'error': 'Missing required fields: title and content are required'})
+                return
+            
+            title = data['title'].strip()
+            content = data['content'].strip()
+            
+            if not title:
+                self._send_response(400, {'error': 'Title cannot be empty'})
+                return
+            
+            note = notes[note_id]
+            note['title'] = title
+            note['content'] = content
+            
+            self._send_response(200, note)
+        else:
+            self._send_response(404, {'error': 'Not found'})
+    
+    def do_DELETE(self):
+        parsed_path = urlparse(self.path)
+        if parsed_path.path.startswith('/notes/'):
+            try:
+                note_id = int(parsed_path.path.split('/')[2])
+            except (IndexError, ValueError):
+                self._send_response(404, {'error': 'Note not found'})
+                return
+            
+            if note_id not in notes:
+                self._send_response(404, {'error': 'Note not found'})
+                return
+            
+            del notes[note_id]
+            self._send_response(204, None)
+        else:
+            self._send_response(404, {'error': 'Not found'})
+
+def main():
+    port = 8080
+    server_address = ('localhost', port)
+    httpd = HTTPServer(server_address, NoteHandler)
+    
+    print(f"Note server starting on http://localhost:{port}")
+    print("Available endpoints:")
+    print("  POST /notes    - Create a new note")
+    print("  GET /notes     - Get all notes")
+    print("  PUT /notes/{id} - Update a note")
+    print("  DELETE /notes/{id} - Delete a note")
+    print()
+    print("Example request body:")
+    print('  {"title":"Note Title","content":"Note Content"}')
+    
+    try:
+        httpd.serve_forever()
+    except KeyboardInterrupt:
+        print("\nServer stopped.")
+        httpd.server_close()
+
+if __name__ == '__main__':
+    main()
diff --git a/test_api.py b/test_api.py
new file mode 100644
index 0000000000..752a2e4249
--- /dev/null
+++ b/test_api.py
@@ -0,0 +1,79 @@
+import requests
+import json
+
+BASE_URL = "http://localhost:8080"
+
+def test_create_note():
+    print("=== Testing POST /notes ===")
+    data = {
+        "title": "Test Note",
+        "content": "This is a test note content"
+    }
+    response = requests.post(f"{BASE_URL}/notes", json=data)
+    print(f"Status Code: {response.status_code}")
+    print(f"Response: {response.text}")
+    assert response.status_code == 201, f"Expected 201, got {response.status_code}"
+    return response.json()["id"]
+
+def test_get_notes():
+    print("\n=== Testing GET /notes ===")
+    response = requests.get(f"{BASE_URL}/notes")
+    print(f"Status Code: {response.status_code}")
+    print(f"Response: {response.text}")
+    assert response.status_code == 200, f"Expected 200, got {response.status_code}"
+    return response.json()
+
+def test_update_note(note_id):
+    print("\n=== Testing PUT /notes/{id} ===")
+    data = {
+        "title": "Updated Test Note",
+        "content": "This is updated content"
+    }
+    response = requests.put(f"{BASE_URL}/notes/{note_id}", json=data)
+    print(f"Status Code: {response.status_code}")
+    print(f"Response: {response.text}")
+    assert response.status_code == 200, f"Expected 200, got {response.status_code}"
+    return response.json()
+
+def test_delete_note(note_id):
+    print("\n=== Testing DELETE /notes/{id} ===")
+    response = requests.delete(f"{BASE_URL}/notes/{note_id}")
+    print(f"Status Code: {response.status_code}")
+    assert response.status_code == 204, f"Expected 204, got {response.status_code}"
+
+def test_invalid_note():
+    print("\n=== Testing invalid note ID ===")
+    response = requests.get(f"{BASE_URL}/notes/99999")
+    print(f"Status Code: {response.status_code}")
+    print(f"Response: {response.text}")
+    assert response.status_code == 404, f"Expected 404, got {response.status_code}"
+
+def test_missing_fields():
+    print("\n=== Testing missing fields ===")
+    data = {
+        "title": ""
+    }
+    response = requests.post(f"{BASE_URL}/notes", json=data)
+    print(f"Status Code: {response.status_code}")
+    print(f"Response: {response.text}")
+    assert response.status_code == 400, f"Expected 400, got {response.status_code}"
+
+if __name__ == "__main__":
+    try:
+        # Test full workflow
+        note_id = test_create_note()
+        test_get_notes()
+        test_update_note(note_id)
+        test_get_notes()
+        test_delete_note(note_id)
+        test_get_notes()
+        
+        # Test error cases
+        test_invalid_note()
+        test_missing_fields()
+        
+        print("\n=== All tests passed! ===")
+    except AssertionError as e:
+        print(f"\n=== Test failed: {e} ===")
+    except Exception as e:
+        print(f"\n=== Error: {e} ===")
diff --git a/test_api_simple.py b/test_api_simple.py
new file mode 100644
index 0000000000..923cb11a6f
--- /dev/null
+++ b/test_api_simple.py
@@ -0,0 +1,80 @@
+import http.client
+import json
+
+def test_api():
+    conn = http.client.HTTPConnection('localhost', 8080)
+    
+    # Test POST /notes
+    print("=== Testing POST /notes ===")
+    data = json.dumps({"title": "Test Note", "content": "This is a test note"})
+    headers = {'Content-Type': 'application/json'}
+    conn.request('POST', '/notes', body=data, headers=headers)
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    response_data = response.read().decode()
+    print(f"Response: {response_data}")
+    
+    if response.status == 201:
+        note = json.loads(response_data)
+        note_id = note['id']
+        print(f"Created note with ID: {note_id}")
+    else:
+        print("POST request failed")
+        conn.close()
+        return
+    
+    # Test GET /notes
+    print("\n=== Testing GET /notes ===")
+    conn.request('GET', '/notes')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test PUT /notes/{id}
+    print("\n=== Testing PUT /notes/{id} ===")
+    data = json.dumps({"title": "Updated Note", "content": "Updated content"})
+    conn.request('PUT', f'/notes/{note_id}', body=data, headers=headers)
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test GET /notes after update
+    print("\n=== Testing GET /notes after update ===")
+    conn.request('GET', '/notes')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test DELETE /notes/{id}
+    print("\n=== Testing DELETE /notes/{id} ===")
+    conn.request('DELETE', f'/notes/{note_id}')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    
+    # Test GET /notes after delete
+    print("\n=== Testing GET /notes after delete ===")
+    conn.request('GET', '/notes')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test invalid ID
+    print("\n=== Testing invalid note ID ===")
+    conn.request('GET', '/notes/99999')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test missing fields
+    print("\n=== Testing missing fields ===")
+    data = json.dumps({"title": ""})
+    conn.request('POST', '/notes', body=data, headers=headers)
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    conn.close()
+    print("\n=== All tests completed! ===")
+
+if __name__ == "__main__":
+    test_api()
diff --git a/test_combined.py b/test_combined.py
new file mode 100644
index 0000000000..86057523ca
--- /dev/null
+++ b/test_combined.py
@@ -0,0 +1,107 @@
+import threading
+import time
+import http.client
+import json
+from http.server import HTTPServer
+from note_server import NoteHandler
+
+# Start server in a separate thread
+server = None
+server_thread = None
+
+def run_server():
+    global server
+    server_address = ('localhost', 8080)
+    server = HTTPServer(server_address, NoteHandler)
+    server.serve_forever()
+
+def run_tests():
+    time.sleep(1)  # Give server time to start
+    
+    conn = http.client.HTTPConnection('localhost', 8080)
+    
+    # Test POST /notes
+    print("=== Testing POST /notes ===")
+    data = json.dumps({"title": "Test Note", "content": "This is a test note"})
+    headers = {'Content-Type': 'application/json'}
+    conn.request('POST', '/notes', body=data, headers=headers)
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    response_data = response.read().decode()
+    print(f"Response: {response_data}")
+    
+    if response.status == 201:
+        note = json.loads(response_data)
+        note_id = note['id']
+        print(f"Created note with ID: {note_id}")
+    else:
+        print("POST request failed")
+        conn.close()
+        return
+    
+    # Test GET /notes
+    print("\n=== Testing GET /notes ===")
+    conn.request('GET', '/notes')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test PUT /notes/{id}
+    print("\n=== Testing PUT /notes/{id} ===")
+    data = json.dumps({"title": "Updated Note", "content": "Updated content"})
+    conn.request('PUT', f'/notes/{note_id}', body=data, headers=headers)
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test GET /notes after update
+    print("\n=== Testing GET /notes after update ===")
+    conn.request('GET', '/notes')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test DELETE /notes/{id}
+    print("\n=== Testing DELETE /notes/{id} ===")
+    conn.request('DELETE', f'/notes/{note_id}')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    
+    # Test GET /notes after delete
+    print("\n=== Testing GET /notes after delete ===")
+    conn.request('GET', '/notes')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test invalid ID
+    print("\n=== Testing invalid note ID ===")
+    conn.request('GET', '/notes/99999')
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    # Test missing fields
+    print("\n=== Testing missing fields ===")
+    data = json.dumps({"title": ""})
+    conn.request('POST', '/notes', body=data, headers=headers)
+    response = conn.getresponse()
+    print(f"Status: {response.status}")
+    print(f"Response: {response.read().decode()}")
+    
+    conn.close()
+    print("\n=== All tests completed! ===")
+
+if __name__ == "__main__":
+    # Start server thread
+    server_thread = threading.Thread(target=run_server)
+    server_thread.daemon = True
+    server_thread.start()
+    
+    # Run tests
+    run_tests()
+    
+    # Cleanup
+    if server:
+        server.shutdown()
+        server.server_close()
diff --git a/test_subprocess.py b/test_subprocess.py
new file mode 100644
index 0000000000..33e1aa866d
--- /dev/null
+++ b/test_subprocess.py
@@ -0,0 +1,101 @@
+import subprocess
+import time
+import http.client
+import json
+import sys
+
+def run_test():
+    # Start the server
+    server_process = subprocess.Popen(
+        [sys.executable, 'note_server.py'],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        text=True
+    )
+    
+    # Wait for server to start
+    time.sleep(2)
+    
+    try:
+        conn = http.client.HTTPConnection('localhost', 8080, timeout=5)
+        
+        # Test POST /notes
+        print("=== Testing POST /notes ===")
+        data = json.dumps({"title": "Test Note", "content": "This is a test note"})
+        headers = {'Content-Type': 'application/json'}
+        conn.request('POST', '/notes', body=data, headers=headers)
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        response_data = response.read().decode()
+        print(f"Response: {response_data}")
+        
+        if response.status == 201:
+            note = json.loads(response_data)
+            note_id = note['id']
+            print(f"Created note with ID: {note_id}")
+        else:
+            print("POST request failed")
+            return
+        
+        # Test GET /notes
+        print("\n=== Testing GET /notes ===")
+        conn.request('GET', '/notes')
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        print(f"Response: {response.read().decode()}")
+        
+        # Test PUT /notes/{id}
+        print("\n=== Testing PUT /notes/{id} ===")
+        data = json.dumps({"title": "Updated Note", "content": "Updated content"})
+        conn.request('PUT', f'/notes/{note_id}', body=data, headers=headers)
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        print(f"Response: {response.read().decode()}")
+        
+        # Test GET /notes after update
+        print("\n=== Testing GET /notes after update ===")
+        conn.request('GET', '/notes')
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        print(f"Response: {response.read().decode()}")
+        
+        # Test DELETE /notes/{id}
+        print("\n=== Testing DELETE /notes/{id} ===")
+        conn.request('DELETE', f'/notes/{note_id}')
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        
+        # Test GET /notes after delete
+        print("\n=== Testing GET /notes after delete ===")
+        conn.request('GET', '/notes')
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        print(f"Response: {response.read().decode()}")
+        
+        # Test invalid ID
+        print("\n=== Testing invalid note ID ===")
+        conn.request('GET', '/notes/99999')
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        print(f"Response: {response.read().decode()}")
+        
+        # Test missing fields
+        print("\n=== Testing missing fields ===")
+        data = json.dumps({"title": ""})
+        conn.request('POST', '/notes', body=data, headers=headers)
+        response = conn.getresponse()
+        print(f"Status: {response.status}")
+        print(f"Response: {response.read().decode()}")
+        
+        conn.close()
+        print("\n=== All tests completed successfully! ===")
+        
+    except Exception as e:
+        print(f"Error: {e}")
+    finally:
+        # Stop the server
+        server_process.terminate()
+        server_process.wait()
+
+if __name__ == "__main__":
+    run_test()