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Express.js · Method

app.patch

The Express application object is created with express(). Use it to define HTTP routes, configure middleware, render views, register template engines, and control application settings.

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Syntax

const app = express();
app.METHOD(path, handler);

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  • app.METHOD
  • app.param
  • app.route
  • app.render
  • app.engine
  • app.all
  • app.listen

Source: Application Object · Express.js 5.x. Checked 2026-11-03.