You can call this operation to install the Cloud Assistant client on one or more instances. You must restart the instances for the installed Cloud Assistant client to take effect.


OpenAPI Explorer automatically calculates the signature value. For your convenience, we recommend that you call this operation in OpenAPI Explorer. OpenAPI Explorer dynamically generates the sample code of the operation for different SDKs.

Request parameters

Parameter Type Required Example Description
Action String Yes InstallCloudAssistant

The operation that you want to perform. Set the value to InstallCloudAssistant.

Note After you call the InstallCloudAssistant and RebootInstance operations in sequence, the Cloud Assistant client takes effect.
InstanceId.N RepeatList Yes i-bp1iudwa5b1tqa****

The ID of instance N. Valid values of N: 1 to 50.

RegionId String Yes cn-hangzhou

The region ID of the instance. You can call the DescribeRegions operation to query the most recent region list.

Response parameters

Parameter Type Example Description
RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.


Sample requests
&<Common request parameters>

Sample success responses

XML format


JSON format

    "RequestId": "928E2273-5715-46B9-A730-238DC996A533"

Error codes

HTTP status code Error code Error message Description
500 InternalError.Dispatch An error occurred when you dispatched the request. The error message returned because an error occurred when the request was being sent. Try again later.
404 InvalidInstance.NotFound The specified instance does not exist. The error message returned because the specified instance does not exist.

For a list of error codes, visit the API Error Center.