fixes2

Author: FedericoMaggi

app.js

@@ -1,4 +1,4 @@
-const express = require('express')
+/*const express = require('express')
 const app = express()
 const PORT = process.env.PORT || 3000
  
@@ -19,4 +19,31 @@ app.get('/square', (req, res) => {
     })
 })
 
-app.listen(PORT, () => console.log('Example app listening on port'+ PORT))
+app.listen(PORT, () => console.log('Example app listening on port'+ PORT))*/
+
+const express = require('express');
+const app = express();
+const port = process.env.PORT || 3000
+
+function string_square(s) {
+    if (typeof s === 'string'){
+        var res = (s.length)*(s.length);
+    } else {
+        var res = -1;
+    }
+    return res;
+}
+
+app.get('/', (req,res) => {
+    res.json({
+        message: 'tua madre'
+    });
+});
+
+app.get('/square', (req, res) => {
+    res.status(200).json({
+        result: string_square(req.query.string)       
+    });
+});
+
+app.listen(port);