Update server.js

server.js

@@ -61,8 +61,9 @@ app.post('/gen', async (req, res) => {
             },
             {
               "type": "image_url",
-              "image_url": "data:image/jpeg;base64,${img}",
-              
+              "image_url": {
+                "url": `data:image/jpeg;base64,${img}`,
+              },
             },
           ],
         }