feat: send stderr as response

index.js

@@ -0,0 +1,48 @@
+const express = require('express');
+const { spawn } = require('child_process');
+
+const app = express();
+
+app.use(express.text()); // Parse text/plain requests
+
+app.post('/', (req, res) => {
+  const command = req.body.trim();
+  console.log(`Received command: ${command}`);
+
+  const shellCommand = process.platform === 'win32' ? 'cmd' : 'bash';
+  const child = spawn(shellCommand);
+
+  child.stdin.write(command + '\n');
+  child.stdin.end();
+
+  let stderrData = ''; // Store stderr data
+
+  // Capture stdout
+  child.stdout.on('data', (stdoutData) => {
+    res.write(stdoutData);
+  });
+
+  // Capture stderr
+  child.stderr.on('data', (stderrChunk) => {
+    stderrData += stderrChunk.toString(); // Append stderr data
+  });
+
+  child.on('close', (code) => {
+    console.log(`Child process exited with code ${code}`);
+    res.end(stderrData); // Send stderr data as part of response
+  });
+
+  child.on('error', (error) => {
+    console.error(`Error spawning child process: ${error.message}`);
+    res.status(500).send(`Error spawning child process: ${error.message}`);
+  });
+});
+
+app.get('/', (req, res) => {
+  res.send('Server running');
+});
+
+const PORT = 8080;
+app.listen(PORT, () => {
+  console.log(`HTTP server running on port ${PORT}`);
+});