import requests
import json

search = {
        "exchange":
        {
            "status":
                {
                    "option":
                        "online"},
            "have":
                ["fusing"],
            "want":
                ["chaos"]
        }
    }

    url = 'http://www.pathofexile.com/trade/exchange/Abyss'

    headers = {'content-type': 'application/json',
               'X-Requested-With' : 'XMLHttpRequest'}


    response = requests.get(url, data=json.dumps(search), headers=headers)