[英]Azure function blob storage file name
將 azure 函數與 blob 存儲輸出綁定一起使用時,如何獲取創建的 blob 的名稱、路徑或 URL? 我想在保存后將其保存到數據庫中。
我使用 Python,但任何示例都可以:
blob = open(os.environ['outputBlob'], 'wb')
blob.write(attachment.get_payload(decode=True))
print blob.name # this is not the correct name, but actually the temp file name I think
blob.close()
對於 C#:正如在https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob#input所討論的,您可以使用以下類型的 blob 綁定
下面是綁定json文件和代碼的例子。 我在 http return 中返回 outpuBlob.Uri 以獲取 Blob 的主要位置路徑。
綁定:-
{
"bindings": [
{
"authLevel": "function",
"name": "req",
"type": "httpTrigger",
"direction": "in",
"methods": [
"get",
"post"
]
},
{
"name": "$return",
"type": "http",
"direction": "out"
},
{
"type": "blob",
"name": "outputBlob",
"path": "outcontainer/{rand-guid}",
"connection": "AzureWebJobsDashboard",
"direction": "inout"
}
],
"disabled": false
}
函數代碼(C#):
#r "Microsoft.WindowsAzure.Storage"
using System.Net;
using Microsoft.WindowsAzure.Storage.Blob;
public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log,CloudBlockBlob outputBlob)
{
log.Info("C# HTTP trigger function processed a request.");
// parse query parameter
string name = req.GetQueryNameValuePairs()
.FirstOrDefault(q => string.Compare(q.Key, "name", true) == 0)
.Value;
if (name == null)
{
// Get request body
dynamic data = await req.Content.ReadAsAsync<object>();
name = data?.name;
}
return name == null
? req.CreateResponse(HttpStatusCode.BadRequest, "Please pass a name on the query string or in the request body")
: req.CreateResponse(HttpStatusCode.OK, "Hello " + outputBlob.Uri);
}
查看 Python 腳本進程空間中的環境變量。 您應該有一個包含 blob 綁定路徑的文件。
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