功能说明
数据万象支持自定义设置回调 URL，在任务完成后，系统向该 URL 发送 HTTP POST 请求，请求体中包含通知内容。您可通过配置的回调地址及时了解任务处理的进展和状态，以便进行其他业务操作。
回调内容
任务完成后，系统会向您设置的回调地址发送回调内容，包含完整节点数据的内容展示如下：
TaskFinish
具体的数据内容如下：
| 节点名称（关键字） | 父节点 | 描述 | 类型 |
| Response | 无 | 保存结果的容器 | Container |
Container 节点 Response 的内容：
| 节点名称（关键字） | 父节点 | 描述 | 类型 |
| EventName | Response | 固定值，为 TaskFinish | String |
| JobsDetail | Response | 同提交转码任务接口中的 Response.JobsDetail | Container 数组 |
如果任务是通过工作流触发的，Response.JobsDetail.Input 还会包含 CosHeaders 节点，类型为 Container 数组。Container 节点 CosHeaders 的内容：
| 节点名称（关键字） | 父节点 | 描述 | 类型 |
| Key | Response.JobsDetail.Input.CosHeaders | 自定义 Header 的名称 | String |
| Value | Response.JobsDetail.Input.CosHeaders | 自定义 Header 的值 | String |
如果任务是通过工作流触发的，Response.JobsDetail 还会包含 Workflow 节点，类型为 Container。Container 节点 Workflow 的内容：
| 节点名称（关键字） | 父节点 | 描述 | 类型 |
| RunId | Response.Workflow | 工作流实例 ID | String |
| WorkflowId | Response.Workflow | 工作流 ID | String |
| WorkflowName | Response.Workflow | 工作流名称 | String |
| Name | Response.Workflow | 工作流节点名称 | String |
实际案例
案例 1：通过任务接口触发的任务回调
TaskFinish
案例 2：通过工作流触发的任务回调
TaskFinish
案例 3：通过工作流触发的任务回调, 格式为 JSON
{ "EventName": "TaskFinish", "JobsDetail": [{ "Code": "Success", "CreationTime": "2022-06-30T15:29:42+0800", "EndTime": "2022-06-30T15:30:08+0800", "Input": { "BucketId": "test-123456789", "Object": "input/demo.mp4", "Region": "ap-chongqing", "CosHeaders": [{ "Key": "Content-Type", "Value": "video/mp4" }, { "Key": "x-cos-request-id", "Value": "NjJiZDYwYTFfNjUzYTYyNjRfZjEwZl8xMmZhYzY5" }, { "Key": "EventName", "Value": "cos:ObjectCreated:Put" }, { "Key": "Size", "Value": "1424687" } ] }, "JobId": "j68427030f84611ecb8546d80f2baf56f", "Message": "success", "Operation": { "MediaInfo": { "Format": { "Duration": "13", "NumStream": "1", "Size": "1909389" }, "Stream": { "Audio": [{ "Bitrate": "128000", "Channel": "2", "ChannelLayout": "stereo", "CodecLongName": "AAC (Advanced Audio Coding)", "CodecName": "aac", "CodecTag": "0x6134706d", "CodecTagString": "mp4a", "CodecTimeBase": "1/44100", "Duration": "13.653", "Index": "1", "Language": "und", "SampleFmt": "fltp", "SampleRate": "44100", "StartTime": "0.000000", "Timebase": "1/44100" }], "Video": [{ "AvgFps": "50.000", "Bitrate": "1031968", "CodecLongName": "H.265 / HEVC (High Efficiency Video Coding)", "CodecName": "hevc", "CodecTag": "0x31637668", "CodecTagString": "hvc1", "CodecTimeBase": "1/50", "ColorPrimaries": "bt470bg", "ColorRange": "tv", "ColorTransfer": "smpte170m", "Duration": "12.960", "FieldOrder": "Unknown", "Fps": "50/1", "HasBFrame": "4", "Height": "960", "Index": "0", "Language": "und", "Level": "4", "NumFrames": "648", "PixFormat": "hvc1", "Profile": "Main", "RefFrames": "1", "Rotation": "0", "StartTime": "0.000000", "Timebase": "1/12800", "Width": "540" }] } }, "MediaResult": { "OutputFile": { "Bucket": "test-123456789", "Md5Info": [{ "Md5": "2db78d168edf2f883adce89a1b4ca033", "ObjectName": "output/transcode.mp4" }], "ObjectName": ["output/transcode.mp4"], "Region": "ap-chongqing" } }, "Output": { "Bucket": "test-123456789", "Object": "output/transcode.${ext}", "Region": "ap-chongqing" }, "TemplateId": "t1995d523e42df4c5e858f244b4174360c", "TemplateName": "trans_993874", "UserData": "This is my Transcode job.", "JobLevel": 0 }, "Progress": "100", "QueueId": "p2242ab62c7c94486915508540933a2c6", "StartTime": "2022-06-30T15:29:42+0800", "State": "Success", "Tag": "Transcode", "Workflow": { "Name": "Transcode_1581665960537", "RunId": "ic90edd59f84f11ec9d4f525400a3c59f", "WorkflowId": "web6ac56c1ef54dbfa44d7f4103203be9", "WorkflowName": "workflow-test" } }]}
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