Work with HTTP Headers

Custom headers

If you need to submit custom HTTP headers, you can specify any number of them via headers option. A common case is to emulate an AJAX request:

>>> g = Grab()
>>> g.setup(headers={'X-Requested-With': 'XMLHttpRequest'})

Bear in mind, that except headers in headers option (that is empty by default) Grab also generates a bunch of headers to emulate a typical web browser. At the moment of writing these docs these headers are:

• Accept

• Accept-Language

• Accept-Charset

• Keep-Alive

• Except

If you need to change one of these headers, you can override its value with the headers option. You can also subclass the Grab class and define your own common_headers method to completely override the logic of generating these extra headers.