DescribeRtcMPUEventSub - ApsaraVideo Live - Alibaba Cloud Documentation Center

Queries information about a subscription to mixed-stream relay events.

Operation description

Usage notes

You can call this operation to query information about a subscription to mixed-stream relay events.
Before you call this operation, make sure that you have called the CreateRtcMPUEventSub operation to create the subscription.

QPS limit

You can call this operation up to 50 times per second per account. Requests that exceed this limit are dropped and you will experience service interruptions. We recommend that you take note of this limit when you call this operation. For more information, see QPS limits.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- For mandatory resource types, indicate with a prefix of * .
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
live:DescribeRtcMPUEventSub	get	All Resources ``	none	none

Request parameters

Parameter	Type	Required	Description	Example
AppId	string	Yes	The ID of your application. Note The ID can be up to 64 characters in length and can contain letters, digits, underscores, and hyphens (-).	yourAppId

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	The request ID.	****3B-0E1A-586A-AC29-742247****
SubInfo	object	The information about the subscription.
SubId	string	The ID of the subscription.	Sub-****9799B2C4500****
AppId	string	The application ID. You can specify only one application ID.	yourAppId
ChannelIds	string	The ID of the channel to which mixed-stream relay event callbacks are sent. Multiple channel IDs are separated by commas (,). If this parameter is not returned, mixed-stream relay event callbacks are sent to all channels.	yourCh1,yourCh2
CreateTime	string	The time when the event callback was fired. The time follows the ISO 8601 standard in the YYYY-MM-DDThh:mm:ss format. The time is displayed in UTC.	2024-04-09 18:00:00Z
CallbackUrl	string	The callback URL.	http://testcallback***.com/callback

Examples

Sample success responses

JSONformat

{
  "RequestId": "******3B-0E1A-586A-AC29-742247******",
  "SubInfo": {
    "SubId": "Sub-******9799B2C4500******",
    "AppId": "yourAppId",
    "ChannelIds": "yourCh1,yourCh2",
    "CreateTime": "2024-04-09 18:00:00Z",
    "CallbackUrl": "http://testcallback***.com/callback"
  }
}

Error codes

HTTP status code	Error code	Error message
400	InvalidParam	%s
400	InvalidAppId	%s
403	OperationDenied	Your account has not enabled the Live service
403	Forbidden	%s
404	MissingParam	%s
500	InternalError	InternalError

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2024-07-04	The Error code has changed	View Change Details