Azure函数在尝试写入本地文件系统时超时或出错

Question

我想要做的是:逻辑应用程序将excel文件从SFTP保存到blob存储。然后，逻辑应用程序将blob详细信息传递给azure函数，该函数检索blob并在本地存储。Next函数为本地存储的excel文件提供路径，并将其解析为JSON。然后将该JSON插入到DB中。我让这些都在本地工作。

问题是如何获得第一个函数，在其中传递blob的fileName和容器并读取它。从那里它应该能拯救它。我尝试过在azure函数或'D:/local/Temp/上使用D:/HOME，但没有成功。

我要么在使用这些路径时得到这个异常

Exception while executing function: Functions.retrieveAndStoreBlobFile. mscorlib: StorageError: NotFound
at Function.StorageServiceClient._normalizeError (D:\home\site\wwwroot\node_modules\azure-storage\lib\common\services\storageserviceclient.js:1181:23)
at BlobService.StorageServiceClient._processResponse (D:\home\site\wwwroot\node_modules\azure-storage\lib\common\services\storageserviceclient.js:736:50)
at Request.processResponseCallback [as _callback] (D:\home\site\wwwroot\node_modules\azure-storage\lib\common\services\storageserviceclient.js:317:37)
at Request.self.callback (D:\home\site\wwwroot\node_modules\azure-storage\node_modules\request\request.js:187:22)
at emitTwo (events.js:106:13)
at Request.emit (events.js:191:7)
at Request.<anonymous> (D:\home\site\wwwroot\node_modules\azure-storage\node_modules\request\request.js:1044:10)
at emitOne (events.js:96:13)
at Request.emit (events.js:188:7)
at IncomingMessage.<anonymous> (D:\home\site\wwwroot\node_modules\azure-storage\node_modules\request\request.js:965:12).

以下是我接收blob详细信息的功能

var blobRepo = require("../repository/blobStorage.js");
const localFileStoragePath = process.env["LocalDiskLocation"];

module.exports = function (context, req) {
context.log('Blob HTTP trigger function processed a request.');
context.log('Local path: ' + localFileStoragePath);
if(req.body){
    var fileName = req.body.fileName;
    var container = req.body.container;
    blobRepo.getBlob(container, fileName).then( (result) => {
        // Return blob details             
        context.done(null, {
            status: 200,
            body:  {
                "blobDetails" : result.blobDetails,
                "filePath" : result.filePath
            }
        })
    }).catch( (err) => {
        context.done(err);
    });
}
else { 
    context.done("Please pass a name on the query string or in the request body", {
        status: 400,
        body: "Please pass a name on the query string or in the request body"
    });
}
};

这是我的回购，从blob存储器读取并保存文件

var azure = require('azure-storage');
var fs = require('fs');

const localFileStoragePath = process.env["LocalDiskLocation"];
var webStorageConnectionString = process.env["AzureWebJobsStorage"];
var blobService = azure.createBlobService(webStorageConnectionString);

var exportObject = {
getBlob: function(container, blobName){
    return new Promise ( (resolve, reject) => {
        // Read file from blob and store on drive
        blobService.getBlobToStream(container, blobName, 
fs.createWriteStream(localFileStoragePath + blobName), function(error, serverBlob) {
            if(error){
                reject(error);
                return;
            }
            const blobDetails  = {
                filePath: localFileStoragePath + blobName,
                blobDetails: JSON.stringify(serverBlob)
            }
            // Return blob details and path to file
            resolve(blobDetails);
        }); 
    });
}
}

module.exports = exportObject;

有什么想法吗？

编辑：经过进一步的研究，在D:\Home目录上创建了一个空白文件，但是没有包含任何内容。错误似乎指向blob存储，这很奇怪，因为请求与我的本地请求完全相同。

Answer 1

...and，我想出来了

显然，我在函数应用程序中的AzureWebJobsStorage值指向了一个不同的存储空间。用正确的方法更新它。