What is the need for the code snippet below, and can I get rid of it?

Question

Please keep in mind that I am building an application that will handle very sensitive data.

app.use(bodyParser.urlencoded({
    extended: false
}));

Answer 1

The main function of body parser is to allow you to parse the body of a POST request to your Express webserver. If you do not plan to have your application accept POST requests, then you do not need this middleware, otherwise it is quite essential.