import requests
from time import sleep

api_key = ""
hats = ["Herald's Helm", "Brotherhood of Arms", "Hole Modest Pile of Hat"]

print("Parameters in query string:")
for item in hats:
    print(requests.get("https://backpack.tf/api/classifieds/search/v1", params={"key": api_key, "item": item}).json())

sleep(5)

print("Parameters in body:")
for item in hats:
    print(requests.get("https://backpack.tf/api/classifieds/search/v1", data={"key": api_key, "item": item}).json())