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 | 同提交数字水印任务接口中的 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：通过任务接口触发的任务回调, 格式为 JSON
{ "EventName": "TaskFinish", "JobsDetail": [{ "Code": "Success", "CreationTime": "2022-06-30T18:37:37+0800", "EndTime": "2022-06-30T18:39:08+0800", "Input": { "BucketId": "test-123456789", "Object": "input/demo.mp4", "Region": "ap-chongqing" }, "JobId": "ja8de3b46f86011ec9452c1c27f56a659", "Operation": { "DigitalWatermark": { "Message": "123456789ab", "Type": "Text", "Version": "V1" }, "MediaInfo": { "Format": { "Bitrate": "2533.526000", "Duration": "215.638000", "FormatLongName": "QuickTime / MOV", "FormatName": "mov,mp4,m4a,3gp,3g2,mj2", "NumProgram": "0", "NumStream": "2", "Size": "68290577", "StartTime": "0.000000" }, "Stream": { "Audio": [{ "Bitrate": "256.050000", "Channel": "2", "ChannelLayout": "stereo", "CodecLongName": "AAC (Advanced Audio Coding)", "CodecName": "aac", "CodecTag": "0x6134706d", "CodecTagString": "mp4a", "CodecTimeBase": "1/48000", "Duration": "215.637000", "Index": "1", "Language": "eng", "SampleFmt": "fltp", "SampleRate": "48000", "StartTime": "0.000000", "Timebase": "1/48000" }], "Video": [{ "AvgFps": "24.000000", "Bitrate": "2272.528000", "CodecLongName": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10", "CodecName": "h264", "CodecTag": "0x31637661", "CodecTagString": "avc1", "CodecTimeBase": "1/12288", "ColorPrimaries": "unknown", "ColorRange": "unknown", "ColorTransfer": "unknown", "Duration": "215.583333", "Fps": "24.000000", "HasBFrame": "2", "Height": "1080", "Index": "0", "Language": "und", "Level": "40", "NumFrames": "5174", "PixFormat": "yuv420p", "Profile": "High", "RefFrames": "1", "Rotation": "0.000000", "StartTime": "0.000000", "Timebase": "1/12288", "Width": "1920" }] } }, "MediaResult": { "OutputFile": { "Bucket": "test-123456789", "Md5Info": [{ "Md5": "043221daee3f4e15ff13f42329f15eb1", "ObjectName": "output/digital.mp4" }], "ObjectName": ["output/digital.mp4"], "Region": "ap-chongqing" } }, "Output": { "Bucket": "test-123456789", "Object": "output/digital.mp4", "Region": "ap-chongqing" }, "UserData": "This is my DigitalWatermark job.", "JobLevel": 0 }, "QueueId": "p2242ab62c7c94486915508540933a2c6", "StartTime": "2022-06-30T18:37:38+0800", "State": "Success", "SubTag": "DigitalWatermark", "Tag": "DigitalWatermark" }]}
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