具有Blob存储的Azure功能.如何创建BlobTrigger到子文件夹? [英] Azure Functions with blob storage. How to create a BlobTrigger to a sub-folder?
问题描述
我需要对添加到子文件夹中的Blob做出反应.我知道Blob存储无法识别文件夹，它们只是虚拟的，但是我仍然不知道如果将文件添加到子文件夹中，如何创建Blob触发器.
I need to react to a blob that's added into a sub-folder. I know that blob storage doesn't recognize the folders, they are just virtual, but I still can't figure out how to create a blob trigger if files are added to sub-folders.
示例:
摘录自function.json:
{
"name": "myblob",
"type": "blobTrigger",
"direction": "in",
"path": "rootContainer/{name}"
}
Excerpt from function.json:
{
"name": "myblob",
"type": "blobTrigger",
"direction": "in",
"path": "rootContainer/{name}"
}
好的，一个函数被触发了，我收到了斑点
OK, a function is triggered and I receive the blob
摘录自function.json:
{
"name": "subfolder/myblob",
"type": "blobTrigger",
"direction": "in",
"path": "rootContainer/{name}"
}
或者
{
"name": "myblob",
"type": "blobTrigger",
"direction": "in",
"path": "rootContainer/subfolder/{name}"
}
Excerpt from function.json:
{
"name": "subfolder/myblob",
"type": "blobTrigger",
"direction": "in",
"path": "rootContainer/{name}"
}
or
{
"name": "myblob",
"type": "blobTrigger",
"direction": "in",
"path": "rootContainer/subfolder/{name}"
}
不好，没有触发功能
关于此问题的问题并不多，并且仍然无法提供正常的答案.在文档中也找不到任何信息.
There are not many questions regarding this problem and they still don't provide a normal answer. Can't find any info in documentation either.
谢谢！
推荐答案
简而言之，"path": "rootcontainer/subfolder/{name}"应该可以工作.
Shortly speaking, "path": "rootcontainer/subfolder/{name}" should work.
功能门户上的日志"面板可能无法及时显示日志，您可以转到https://{functionappname}.scm.azurewebsites.net/DebugConsole，然后导航到D:\home\LogFiles\Application\Functions\function\yourblobtriggername以查看日志文件.
Logs panel on function portal may not show logs in time, you can go to https://{functionappname}.scm.azurewebsites.net/DebugConsole, then navigate to D:\home\LogFiles\Application\Functions\function\yourblobtriggername to see log files.
如果在功能代码中使用blob名称，则path应包含{name}，否则由于运行时异常，功能将无法运行.
If you use blob name in your function code, path should include {name}, otherwise function won't run due to runtime exception.
如果将path设置为mycontainer或mycontainer/{name}之类的容器，则写入该容器的所有文件(包括上传到虚拟子文件夹的文件)都将触发该功能.
正如您提到的:
If you set path as a container like mycontainer or mycontainer/{name}, all files written to this container(including those uploaded to virtual subfolder) will trigger the function.
As you have mentioned:
当根为
rootcontainer时会被触发，并且出现的blob具有以下名称subfolder/{name}
it's fired when a root is
rootcontainer, and blob which comes has the following namesubfolder/{name}
如果将其设置为类似于mycontainer/subfolder/{name}的子文件夹，则只有写入该子文件夹的文件才会触发该功能.
If you set it as a subfolder like mycontainer/subfolder/{name}, only files written to this subfolder will trigger the function.
如果设置为mycontainer/subfolder，则不会像发现的那样触发.
If set to mycontainer/subfolder, not triggered as you have found.
随时询问您是否还有其他问题.
Feel free to ask if you have further questions.
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