what is a middleware code example

Example 1: middleware

//just for me lol... pls don't delete
"middleware" - code that runs before the final route call back.
They are in the middle of the beginning of the route and the 
callback function.

Example 2: middleware uses

server.use(express.static('./public'));
server.use(express.json());
server.use(express.urlencoded({extended: true}));
const methodOverride = require('method-override');
server.use(methodOverride('_method'));
server.set('view engine', 'ejs');