Some errors fixed, works for api.js

app.js

@@ -5,7 +5,8 @@ import cookieParser from 'cookie-parser'
 import cors from 'cors'
 
 import indexRouter from './routes/index.js'
-import apiRouter from './routes/index.js'
+import { apiRouter } from './routes/api.js'
+import chartRouter from './routes/chartapi.js'
 
 const app = express()
 
@@ -15,8 +16,9 @@ app.use(express.json())
 app.use(express.urlencoded({ extended: true }))
 app.use(cookieParser())
 
-app.use('/api', apiRouter)
 app.use('/', indexRouter)
+app.use('/api', apiRouter)
+app.use('/chart', chartRouter)
 
 
 // catch 404 and forward to error handler