app.configure is not a function

[simerjit-fwrk]

Getting issue app.configure is not a function

[ToToSe]

@simerjit-fwrk app.configure is deprecated in express 4

[praaatik]

The below configuration would work

var app = express();
var flash = require('connect-flash');

app.use(flash());

Also, might want to have a look this link:
https://github.com/expressjs/express/wiki/Migrating-from-3.x-to-4.x#appconfigure

[Manish270698]

@praaatik I used your suggested way but now i am getting the following deprecation warnings when i start the server:
Mon, 24 Aug 2020 14:49:48 GMT express-session deprecated undefined resave option; provide resave option at app.js:31:9 Mon, 24 Aug 2020 14:49:48 GMT express-session deprecated undefined saveUninitialized option; provide saveUninitialized option at app.js:31:9 Mon, 24 Aug 2020 14:49:48 GMT express-session deprecated req.secret; provide secret option at app.js:31:9 Server started successfully