文件 AWS 開發套件範例 GitHub 儲存庫中有更多可用的 [AWS SDK 範例](https://github.com/awsdocs/aws-doc-sdk-examples)。
本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。
# 使用 SDK for Python (Boto3) 的應用程式復原控制器範例
下列程式碼範例示範如何使用 適用於 Python (Boto3) 的 AWS SDK 搭配應用程式復原控制器來執行動作和實作常見案例。
*Actions* 是大型程式的程式碼摘錄，必須在內容中執行。雖然動作會告訴您如何呼叫個別服務函數，但您可以在其相關情境中查看內容中的動作。
每個範例均包含完整原始碼的連結，您可在連結中找到如何設定和執行內容中程式碼的相關指示。
**Topics**
+ [動作](#actions)
## 動作
### `GetRoutingControlState`
以下程式碼範例顯示如何使用 `GetRoutingControlState`。
**適用於 Python 的 SDK (Boto3)**
GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/route53-recovery-cluster#code-examples)中設定和執行。
```
import boto3
def create_recovery_client(cluster_endpoint):
"""
Creates a Boto3 Route 53 Application Recovery Controller client for the specified
cluster endpoint URL and AWS Region.
:param cluster_endpoint: The cluster endpoint URL and Region.
:return: The Boto3 client.
"""
return boto3.client(
"route53-recovery-cluster",
endpoint_url=cluster_endpoint["Endpoint"],
region_name=cluster_endpoint["Region"],
)
def get_routing_control_state(routing_control_arn, cluster_endpoints):
"""
Gets the state of a routing control. Cluster endpoints are tried in
sequence until the first successful response is received.
:param routing_control_arn: The ARN of the routing control to look up.
:param cluster_endpoints: The list of cluster endpoints to query.
:return: The routing control state response.
"""
# As a best practice, we recommend choosing a random cluster endpoint to get or set routing control states.
# For more information, see https://docs.aws.amazon.com/r53recovery/latest/dg/route53-arc-best-practices.html#route53-arc-best-practices.regional
random.shuffle(cluster_endpoints)
for cluster_endpoint in cluster_endpoints:
try:
recovery_client = create_recovery_client(cluster_endpoint)
response = recovery_client.get_routing_control_state(
RoutingControlArn=routing_control_arn
)
return response
except Exception as error:
print(error)
raise error
```
+ 如需 API 詳細資訊，請參閱《AWS SDK for Python (Boto3) API 參考》**中的 [GetRoutingControlState](https://docs.aws.amazon.com/goto/boto3/route53-recovery-cluster-2019-12-02/GetRoutingControlState)。
### `UpdateRoutingControlState`
以下程式碼範例顯示如何使用 `UpdateRoutingControlState`。
**適用於 Python 的 SDK (Boto3)**
GitHub 上提供更多範例。尋找完整範例，並了解如何在 [AWS 程式碼範例儲存庫](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/route53-recovery-cluster#code-examples)中設定和執行。
```
import boto3
def create_recovery_client(cluster_endpoint):
"""
Creates a Boto3 Route 53 Application Recovery Controller client for the specified
cluster endpoint URL and AWS Region.
:param cluster_endpoint: The cluster endpoint URL and Region.
:return: The Boto3 client.
"""
return boto3.client(
"route53-recovery-cluster",
endpoint_url=cluster_endpoint["Endpoint"],
region_name=cluster_endpoint["Region"],
)
def update_routing_control_state(
routing_control_arn, cluster_endpoints, routing_control_state
):
"""
Updates the state of a routing control. Cluster endpoints are tried in
sequence until the first successful response is received.
:param routing_control_arn: The ARN of the routing control to update the state for.
:param cluster_endpoints: The list of cluster endpoints to try.
:param routing_control_state: The new routing control state.
:return: The routing control update response.
"""
# As a best practice, we recommend choosing a random cluster endpoint to get or set routing control states.
# For more information, see https://docs.aws.amazon.com/r53recovery/latest/dg/route53-arc-best-practices.html#route53-arc-best-practices.regional
random.shuffle(cluster_endpoints)
for cluster_endpoint in cluster_endpoints:
try:
recovery_client = create_recovery_client(cluster_endpoint)
response = recovery_client.update_routing_control_state(
RoutingControlArn=routing_control_arn,
RoutingControlState=routing_control_state,
)
return response
except Exception as error:
print(error)
```
+ 如需 API 詳細資訊，請參閱《AWS SDK for Python (Boto3) API 參考》**中的 [UpdateRoutingControlState](https://docs.aws.amazon.com/goto/boto3/route53-recovery-cluster-2019-12-02/UpdateRoutingControlState)。