`app.put()`

Routes HTTP PUT requests for a path, typically for full resource replacement.

Since Express 4 Spec ↗

Syntax

app.put(path, ...handlers)

Parameters

Name	Type	Required	Description
`path`	`string \| RegExp`	Yes	The route path.
`handlers`	`...function`	Yes	The handler chain.

Returns

Application — The app instance, for chaining.

Examples

app.use(express.json());

app.put('/users/:id', (req, res) => {
  const updated = replaceUser(req.params.id, req.body);
  res.json(updated);
});

Output

$ curl -X PUT -d '{"name":"Grace"}' -H 'Content-Type: application/json' localhost:3000/users/1
{"id":"1","name":"Grace"}

app.put('/settings', (req, res) => {
  saveSettings(req.body);
  res.sendStatus(204);
});

Output

(204 No Content)

Notes

PUT semantically replaces the whole resource; use PATCH for partial updates. PUT should be idempotent - repeating the same request must leave the same state. Validate `req.body` before persisting.