save and use session_id

server.js

@@ -1,5 +1,6 @@
 const express = require('express');
 require('dotenv').config()
+const fs = require('fs');
 const { execSync } = require('child_process');
 
 const app = express()
@@ -7,15 +8,14 @@ app.use(express.json())
 
 app.post('/test', (req, res)=>{
 
-	const resumeFlag = ``
+	const resumeFlag = process.env.SESSIONID ? `--resume "${process.env.SESSIONID}"` : '';
 	const result = execSync(
 		`cd /home/matt/pathfinder && claude -p "${req.body.message}" ${resumeFlag} --output-format json --allowedTools "Bash(*)" "Read(*)" "Write(*)" "Edit(*)"`,
 		{ encoding: 'utf-8', timeout: 120000 }
 	);
+	fs.writeFileSync('.env', `SESSIONID="${JSON.parse(result).session_id}"`, 'utf8');
 	res.json(JSON.parse(result))
 
 })
 
-console.log(process.env.SESSIONID);
-
 app.listen(3000);