Updates the topology of a media workflow.
Operation description
- You can call this operation to update the topology of a media workflow. To update the trigger mode of a media workflow, call the UpdateMediaWorkflowTriggerMode operation.
- After you delete or deactivate a media workflow, the workflow cannot be used. In this case, the workflow is not automatically triggered when you upload a file to the bucket specified by the workflow.
Warning Deleting or deactivating a workflow will not affect tasks that have already been submitted. If a workflow is deleted or deactivated after a task has been submitted, tasks that are already in the processing queue will not be canceled and will be executed normally and charged the corresponding fees.
QPS limit
You can call this operation up to 100 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 limit.>
Debugging
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:
- The required resource types are displayed in bold characters.
- If the permissions cannot be granted at the resource level,
All Resourcesis 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 |
|---|---|---|---|---|
| mts:UpdateMediaWorkflow | update |
|
| none |
Request parameters
| Parameter | Type | Required | Description | Example |
|---|---|---|---|---|
| MediaWorkflowId | string | Yes | The ID of the media workflow that you want to update. To obtain the ID of the media workflow, you can log on to the ApsaraVideo Media Processing (MPS) console and choose Workflows > Workflow Settings in the left-side navigation pane. | 6307eb0d3f85477882d205aa040f**** |
| Topology | string | Yes | The new topology of the media workflow. The value is a JSON object that contains the activity list and activity dependencies. Note
The Object Storage Service (OSS) bucket must reside in the same region as your MPS service.
| { "Activities": { "Act-Start": { "Parameters": { "PipelineId": "130266f58161436a80bf07cb12c8****", "InputFile": "{\"Bucket\": \"example-bucket-****\",\"Location\": \"cn-shanghai\"}" }, "Type": "Start" }, "Act-Report": { "Parameters": {}, "Type": "Report" }, "Act-Transcode-M3U8": { "Parameters": { "Outputs": "[{\"Object\":\"transcode/{ObjectPrefix}{FileName}\",\"TemplateId\": \"957d1719ee85ed6527b90cf62726****\"}]", "OutputBucket": "example-bucket-****", "OutputLocation": "cn-shanghai" }, "Type": "Transcode" } }, "Dependencies": { "Act-Start": [ "Act-Transcode-M3U8" ], "Act-Report": [], "Act-Transcode-M3U8": [ "Act-Report" ] } } |
Response parameters
Examples
Sample success responses
JSONformat
{
"RequestId": "7D752035-97DA-54E5-88E2-E8405EEA****",
"MediaWorkflow": {
"CreationTime": "2016-04-01T05:29:38Z",
"MediaWorkflowId": "6307eb0d3f85477882d205aa040f****",
"State": "Active",
"TriggerMode": "OssAutoTrigger",
"Name": "examp-mediaworkflow-****",
"Topology": "{\n \"Activities\": {\n \"Act-Start\": {\n \"Parameters\": {\n \"PipelineId\": \"130266f58161436a80bf07cb12c8****\",\n \"InputFile\": \"{\\\"Bucket\\\": \\\"example-bucket-****\\\",\\\"Location\\\": \\\"cn-shanghai\\\"}\"\n },\n \"Type\": \"Start\"\n },\n \"Act-Report\": {\n \"Parameters\": {},\n \"Type\": \"Report\"\n },\n \"Act-Transcode-M3U8\": {\n \"Parameters\": {\n \"Outputs\": \"[{\\\"Object\\\":\\\"transcode/{ObjectPrefix}{FileName}\\\",\\\"TemplateId\\\": \\\"957d1719ee85ed6527b90cf62726****\\\"}]\",\n \"OutputBucket\": \"example-bucket-****\",\n \"OutputLocation\": \"cn-shanghai\"\n },\n \"Type\": \"Transcode\"\n }\n },\n \"Dependencies\": {\n \"Act-Start\": [\n \"Act-Transcode-M3U8\"\n ],\n \"Act-Report\": [],\n \"Act-Transcode-M3U8\": [\n \"Act-Report\"\n ]\n }\n}"
}
}Error codes
For a list of error codes, visit the Service error codes.
Change history
| Change time | Summary of changes | Operation |
|---|