# Utilities for Enhanced Form-Data Serialization

`requests_toolbelt.utils.formdata.``urlencode`(query, *args, **kwargs)

  Handle nested form-data queries and serialize them appropriately.

  There are times when a website expects a nested form data query to be sent but, the standard library’s urlencode function does not appropriately handle the nested structures. In that case, you need this function which will flatten the structure first and then properly encode it for you.

  When using this to send data in the body of a request, make sure you specify the appropriate Content-Type header for the request.

      import requests
      from requests_toolbelt.utils import formdata

      query = {
         'my_dict': {
             'foo': 'bar',
             'biz': 'baz",
          },
          'a': 'b',
      }

      resp = requests.get(url, params=formdata.urlencode(query))
      # or
      resp = requests.post(
          url,
          data=formdata.urlencode(query),
          headers={
              'Content-Type': 'application/x-www-form-urlencoded'
          },
      )

  Similarly, you can specify a list of nested tuples, e.g.,

      import requests
      from requests_toolbelt.utils import formdata

      query = [
          ('my_list', [
              ('foo', 'bar'),
              ('biz', 'baz'),
          ]),
          ('a', 'b'),
      ]

      resp = requests.get(url, params=formdata.urlencode(query))
      # or
      resp = requests.post(
          url,
          data=formdata.urlencode(query),
          headers={
              'Content-Type': 'application/x-www-form-urlencoded'
          },
      )

  For additional parameter and return information, see the official urlencode documentation.