File Handling

It is really easy to use Eta with Express. First, you must install Eta, then you must add an app.engine() line with the file extension (here, we use .eta) as the first parameter and the Eta module as the second parameter (app.set('view engine', 'eta')):

Eta works out-of-the-box with Express.js.
app.engine("html", require("eta").renderFile)
// Or, if you want to use the .eta file extension
app.set("view engine", "eta")