如何从xero api获取账单列表

import requests

client_id = "YOUR_CLIENT_ID"
client_secret = "YOUR_CLIENT_SECRET"
redirect_uri = "YOUR_REDIRECT_URI"

# 获取访问令牌
def get_access_token():
    auth_url = "https://login.xero.com/identity/connect/authorize"
    token_url = "https://identity.xero.com/connect/token"

    # 构建授权链接
    auth_params = {
        "response_type": "code",
        "client_id": client_id,
        "redirect_uri": redirect_uri,
        "scope": "openid profile email accounting.transactions",
    }
    auth_response = requests.get(auth_url, params=auth_params)

    # 从授权回调URL中获取授权码
    auth_code = input("请输入授权回调URL中的授权码：")

    # 使用授权码获取访问令牌
    token_payload = {
        "grant_type": "authorization_code",
        "code": auth_code,
        "client_id": client_id,
        "client_secret": client_secret,
        "redirect_uri": redirect_uri,
    }
    token_response = requests.post(token_url, data=token_payload)

    # 提取访问令牌
    access_token = token_response.json()["access_token"]
    return access_token

# 获取账单列表
def get_invoices():
    invoices_url = "https://api.xero.com/api.xro/2.0/Invoices"

    # 构建请求头，包含访问令牌
    headers = {
        "Authorization": "Bearer " + get_access_token(),
        "Content-Type": "application/json",
    }

    # 发起GET请求获取账单列表
    response = requests.get(invoices_url, headers=headers)
    invoices = response.json()["Invoices"]
    return invoices

# 打印账单列表
invoices = get_invoices()
for invoice in invoices:
    print("账单ID: " + invoice["InvoiceID"])
    print("账单号: " + invoice["InvoiceNumber"])
    print("账单金额: " + invoice["Total"])
    print("------------------------------")