Update server.js

server.js

@@ -73,11 +73,12 @@ app.post('/gen', upload.single('image'), async (req, res) => {
               "type": "text",
               "text": prompt,
             },
-            {
-              "type": "image_url",
-              "image": img,
-            },
           ],
+        },
+        
+        {
+          "role": "user",
+          "content": img,
         }
       ],
     };