# -*- coding: utf-8 -*-
# Copyright 2017-2021 Tencent Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import json

from tencentcloud.common.common_client import CommonClient
from tencentcloud.common import credential
from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
from tencentcloud.common.profile.client_profile import ClientProfile
from tencentcloud.common.profile.http_profile import HttpProfile

try:
    cred = credential.Credential(
        os.environ.get("TENCENTCLOUD_SECRET_ID"),
        os.environ.get("TENCENTCLOUD_SECRET_KEY"))

    httpProfile = HttpProfile()
    # 域名首段必须和下文中CommonClient初始化的产品名严格匹配
    httpProfile.endpoint = "cvm.tencentcloudapi.com"
    clientProfile = ClientProfile()
    clientProfile.httpProfile = httpProfile

    # common client方法支持指定header，如 X-TC-TraceId、X-TC-Canary
    headers = {
        "X-TC-TraceId": "ffe0c072-8a5d-4e17-8887-a8a60252abca"
    }

    # 实例化要请求的common client对象，clientProfile是可选的。
    common_client = CommonClient("cvm", '2017-03-12', cred, "ap-shanghai", profile=clientProfile)
    # 接口参数作为json字典传入，得到的输出也是json字典，请求失败将抛出异常，headers为可选参数
    print(common_client.call_json("DescribeInstances", {"Limit": 10}, headers=headers))
except TencentCloudSDKException as err:
    print(err)