客户端与凭证

使用 AccessKey 调用

from aliyunsdkcore.client import AcsClient
from aliyunsdkecs.request.v20140526.AcceptInquiredSystemEventRequest import AcceptInquiredSystemEventRequest

# 实例化Client
client = AcsClient(
    '<access_key_id>', # RAM账号的AccessKey ID
    '<access_secret>', # RAM账号Access Key Secret
    '<region_id>' # 地域ID
)

# 创建API请求并设置参数
request = AcceptInquiredSystemEventRequest()
request.set_accept_format('json')
# 发起请求并处理应答或异常
response = client.do_action_with_exception(request)

print(str(response, encoding='utf-8'))

使用默认凭证提供链

1. 环境凭证

   在环境变量里寻找环境凭证，如果定义了 ALIYUN_ACCESS_KEY_ID 和 ALIYUN_ACCESS_KEY_SECRET 环境变量且不为空，程序将使用它们创建默认凭证。

   from aliyunsdkcore.client import AcsClient
   from aliyunsdkecs.request.v20140526.AcceptInquiredSystemEventRequest import AcceptInquiredSystemEventRequest
   
   client = AcsClient(
       region_id='<region_id>'
   )
   
   request = AcceptInquiredSystemEventRequest()
   request.set_accept_format('json')
   response = client.do_action_with_exception(request)
   
   print(str(response, encoding='utf-8'))

2. STS 凭证

   通过安全令牌服务（Security Token Service，简称 STS），申请临时安全凭证（Temporary Security Credentials，简称 TSC），创建临时安全客户端。

   from aliyunsdkcore.client import AcsClient
   from aliyunsdkcore.auth.credentials import StsTokenCredential
   from aliyunsdkecs.request.v20140526.AcceptInquiredSystemEventRequest import AcceptInquiredSystemEventRequest
   
   cred = StsTokenCredential(
       sts_access_key_id = '<sts_access_key_id>',
       sts_access_key_secret = '<sts_access_key_secret>',
       sts_token = '<sts_token>'
   )
   
   client = AcsClient(
       region_id='<region_id>',
       credential=cred
   )
   
   request = AcceptInquiredSystemEventRequest()
   request.set_accept_format('json')
   response = client.do_action_with_exception(request)
   
   print(str(response, encoding='utf-8'))

3. RamRoleArn 凭证

   通过指定RAM角色，让客户端在发起请求前自动申请维护 STS Token，自动转变为一个有时限性的STS客户端。您也可以自行申请维护 STS Token，再创建 STS客户端。

   from aliyunsdkcore.client import AcsClient
   from aliyunsdkcore.auth.credentials import RamRoleArnCredential
   from aliyunsdkecs.request.v20140526.AcceptInquiredSystemEventRequest import AcceptInquiredSystemEventRequest
   
   cred = RamRoleArnCredential(
       sts_access_key_id='<sts_access_key_id>',
       sts_access_key_secret='<sts_access_key_secret>',
       role_arn='<role_arn>',
       session_role_name='<session_role_name>'
   )
   
   client = AcsClient(
       region_id='<region_id>',
       credential=cred
   )
   
   request = AcceptInquiredSystemEventRequest()
   request.set_accept_format('json')
   response = client.do_action_with_exception(request)
   
   print(str(response, encoding='utf-8'))

4. EcsRamRole 凭证

   实例化Esc Ram角色凭据时，该程序将携带指定的角色名称并请求http://100.100.100.200/latest/meta-data/ram/security-credentials/ 以获得临时安全凭据。

   from aliyunsdkcore.client import AcsClient
   from aliyunsdkcore.auth.credentials import EcsRamRoleCredential
   from aliyunsdkecs.request.v20140526.AcceptInquiredSystemEventRequest import AcceptInquiredSystemEventRequest
   
   cred = EcsRamRoleCredential(
       role_name='<role name>'
   )
   
   client = AcsClient(
       region_id='<region_id>',
       credential=cred
   )
   
   request = AcceptInquiredSystemEventRequest()
   request.set_accept_format('json')
   response = client.do_action_with_exception(request)
   
   print(str(response, encoding='utf-8'))