【Python質問】Yahoo!のAPI　ID連携　について

認可コード s://auth.login.yahoo.co.jp/yconnect/v2/consent?session=lHGzBsWt&display=page&.scrumb=urAJ186NOzk&bcrumb=dD1oOWRpaUImc2s9TnluOFVXWmpIUVgzNWZVYTBRRG5DemZVeWtjLQ%3D%3D
status:error 400

import time
import codecs
import os
import re

import pandas as pd

import requests, base64
import xml.etree.ElementTree as ET
from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager


# Yahoo API 向け設定
seller_id = "ストアのID"  

yid = "ヤフーのID"
ypass = "ヤフーのパスワード"

client_id = "発行したアプリケーションID"
client_secret = "発行したシークレットID"

redirect_uri = "https://shoppingXXXXXXXXXX"

# YahooのAPIアクセストークンを取得する関数
def Yahoo_get_token():

    url = "https://auth.login.yahoo.co.jp/yconnect/v2/authorization"

    params = {
        "response_type": "code",
        "client_id": client_id,
        "redirect_uri": redirect_uri,
        "scope": "openid address profile email",
        "bail": 1
    }

    res = requests.get(url, params=params)
    time.sleep(1)

    options = webdriver.ChromeOptions()
    # options.add_argument('--headless')
    driver = webdriver.Chrome(ChromeDriverManager(
        log_level=0, print_first_line=False).install(), options=options)
    driver.get(res.url)
    time.sleep(1)

    # ログイン処理
    driver.find_element_by_name("login").send_keys(yid)
    driver.find_element_by_name("btnNext").click()
    time.sleep(1)

    driver.find_element_by_name("passwd").send_keys(ypass)
    driver.find_element_by_name("btnSubmit").click()
    time.sleep(1)

    # 認可コード
    start = driver.current_url.find("code=") + 5
    Length = len(driver.current_url)
    code = driver.current_url[start:Length]

    print("認可コード", code)

    # selenium終了
    driver.close()
    driver.quit()

    # アクセストークン
    url = "https://auth.login.yahoo.co.jp/yconnect/v2/token"

    data = {
        "grant_type": "authorization_code",
        "redirect_uri": redirect_uri,
        "code": code,
    }

    base64_id_secret = client_id + ':' + client_secret
    base64_id_secret_byte = base64.b64encode(base64_id_secret.encode('utf-8'))
    auth_header = 'Basic ' + base64_id_secret_byte.decode('ascii')

    headers = {
        'HTTP-Version': 'HTTP/1.1',
        'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8',
        'Authorization': auth_header
    }

    res = requests.post(url, data=data, headers=headers)

    if res.status_code == 200:
        res_json = res.json()
        access_token = res_json["access_token"]
        refresh_token = res_json["refresh_token"]

        return res.status_code, [access_token, refresh_token]
    else:
        return res.status_code, []

# 指定された商品の商品情報を返します。
# https://developer.yahoo.co.jp/webapi/shopping/getItem.html
def API_item_get(token, item_code):
    endpoint = "https://circus.shopping.yahooapis.jp/ShoppingWebService/V1/getItem"

    params = {
        'seller_id': seller_id,
        'item_code': item_code
    }

    headers = {
        'HTTP-Version': 'HTTP/1.1',
        'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8',
        'Authorization': 'Bearer ' + token,
    }

    res = requests.get(endpoint, params=params, headers=headers)
    xml = res.text
    return xml

def API_item_category(token):
    endpoint = "https://circus.shopping.yahooapis.jp/ShoppingWebService/V1/stCategoryList"

    params = {
        'seller_id' : seller_id,
        # "page_key": page_key
    }

    headers = {
        'HTTP-Version': 'HTTP/1.1',
        'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8',
        'Authorization': 'Bearer ' + token,
    }

    res = requests.get(endpoint, params=params, headers=headers)
    xml = res.text

    return xml

def save_csv(df, dir_path, filename):
    os.makedirs(dir_path, exist_ok=True)
    with codecs.open(os.path.join(dir_path, filename), 'w', 'shift_jisx0213', 'ignore') as f:
        df.to_csv(f, index=False)

def xml2df(xml_data):
    root = ET.XML(xml_data) # element tree
    all_records = []
    for i, child in enumerate(root):
        record = {}
        for subchild in child:
            record[subchild.tag] = subchild.text
        all_records.append(record)
    df = pd.DataFrame(all_records)
    return df

def test():
    # Yahoo APIアクセストークン取得
    status, token = Yahoo_get_token()

    # 正常に取得できた場合以下実行
    if status == 200:
        xml = API_item_category(token[0])
        df = xml2df(xml)

        save_csv(df, "./", "output.csv")
    else:
        print("status:error", status)
test()