onst server = http.createServer((req, res) => {
  console.log(`[HTTP Server] PID=${process.pid}`);
  console.log(`[HTTP Server] ${req.method} ${req.url}`);

  if (req.method === 'GET' && req.url === '/ping') {
    res.writeHead(200, {
      'Content-Type': 'application/json',
    });

    res.end(JSON.stringify({
      message: 'pong',
    }));

    return;
  }

  res.writeHead(404);
  res.end();
});

$ node client.js
=== HTTP Client ===
PID: 23304

$ node server.js
=== HTTP Server ===
PID: 28700

$ node client.js
=== HTTP Client ===
Target: http://127.0.0.1:3000/ping
Status: 200
Response: {"message":"pong"}

$ node server.js
=== HTTP Server ===
Address: http://127.0.0.1:3000
[HTTP Server] PID=28700
[HTTP Server] GET /ping

PS C:\Users\XXXXX> Get-NetTCPConnection -LocalPort 3000

LocalAddress                        LocalPort RemoteAddress                       RemotePort State       AppliedSetting
------------                        --------- -------------                       ---------- -----       --------------
127.0.0.1                           3000      0.0.0.0                             0          Listen

const server = net.createServer((socket) => {
  console.log(`[Named Pipe Server] PID=${process.pid}`);
  console.log('[Named Pipe Server] Client connected');

  socket.on('data', (data) => {
    const message = data.toString();

    console.log(`[Named Pipe Server] Received: ${message}`);

    socket.write('OK');
  });

  socket.on('end', () => {
    console.log('[Named Pipe Server] Client disconnected');
  });

  socket.on('error', (error) => {
    console.error(
      '[Named Pipe Server] Socket error:',
      error.message
    );
  });
});

const client = net.createConnection({
  path: PIPE_NAME,
});

client.on('connect', () => {
  console.log('[Named Pipe Client] Connected');

  client.write('Hello IPC');
});

client.on('data', (data) => {
  console.log(
    `[Named Pipe Client] Response: ${data.toString()}`
  );

  client.end();
});

client.on('end', () => {
  console.log('[Named Pipe Client] Disconnected');
});

$ node server.js
=== Windows Named Pipe Server ===
PID: 5264


$ node client.js
=== Windows Named Pipe Client ===
PID: 5612

127.0.0.1:3000

\\.\pipe\example

$ node server.js
=== Windows Named Pipe Server ===
PID: 5264
Pipe: \\.\pipe\ipc-test
[Named Pipe Server] PID=5264
[Named Pipe Server] Client connected
[Named Pipe Server] Received: Hello IPC
[Named Pipe Server] Client disconnected


$ node client.js
=== Windows Named Pipe Client ===
PID: 5612
Pipe: \\.\pipe\ipc-test
[Named Pipe Client] Connected
[Named Pipe Client] Response: OK
[Named Pipe Client] Disconnected

PS C:\Users\fiibu> Get-NetTCPConnection -LocalPort 3000
Get-NetTCPConnection : プロパティ 'LocalPort' が '3000' の MSFT_NetTCPConnection オブジェクトが見つかりません。プロパテ
ィの値を確認してから再試行してください。
発生場所 行:1 文字:1
+ Get-NetTCPConnection -LocalPort 3000
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (3000:UInt16) [Get-NetTCPConnection], CimJobException
    + FullyQualifiedErrorId : CmdletizationQuery_NotFound_LocalPort,Get-NetTCPConnection


PS C:\Users\fiibu> Get-ChildItem \\.\pipe\ | Where-Object {
>>     $_.Name -like "*ipc-test*"
>> }
    ディレクトリ: \\.\pipe
Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
------        1601/01/01      9:00              4 ipc-test

Server User : mainaccount
Client User : mainaccount

Connection : SUCCESS
Response   : OK

=== Client Connected ===
Server PID : 20392
Received   : Hello Security Test
Client disconnected

whoami
→ owner\ipc-test-user

Connection : FAILED
Error      : EPERM
Message    : connect EPERM \\.\pipe\ipc-security-test

BUILTIN\Administrators
BUILTIN\Users

BUILTIN\Users

mainaccount
    ↓
Named Pipeへ接続
    ↓
成功

ipc-test-user
    ↓
Named Pipeへ接続
    ↓
EPERM
    ↓
失敗

const client = net.createConnection({
  path: '\\\\.\\pipe\\ipc-security-test',
});