res.set()

Sets specified response header (header) to the specified value (value).

Alternatively, you can pass in a single object argument (headers) to set multiple header fields at once, where the keys are the header field names, and the corresponding values are the desired values.

Usage

res.set(header, value);

-or-

res.set(headers);

Example

res.set('Content-Type', 'text/plain');
res.set({
  'Content-Type': 'text/plain',
  'Content-Length': '123',
  'ETag': '12345'
})