Azure Blob存储使电子应用程序崩溃

Question

When I am posting a picture from my electron app to blob storage, sometimes it works, and other times I get this error on my terminal:

When I was first working on this app, this problem never showed up, until a week ago. It occurred without making any changes to this part of the app. Any idea on what could cause it.

The electron app goes white, and the dev tools are disconnected.

Here is the code:

 var azure = require('azure-storage'); var blobSvc = azure.createBlobService('*connection keys inside here*'); function createBlob() { blobSvc.createContainerIfNotExists('photos', {publicAccessLevel : 'blob'}, function(error, result, response){ if(!error){ console.log(response); } }); console.log("creating image for student#: " + stud_id); blobSvc.createBlockBlobFromStream('photos', stud_id + '.jpg', toStream(imgData), imgData.size, function(error, result, response){ if(!error){ console.log("file upload: \\n" + JSON.stringify(result) + " \\n" + JSON.stringify(response)); createPerson(); } else if (error) { console.log("error: " + JSON.stringify(error)); } }); } 

Answer 1

In your code, you actually call the createBlockBlobFromStream immediately, probably without container having created. This may cause the problem.

So, you would need to put them within the callback of the createContainerIfNotExists function:

blobSvc.createContainerIfNotExists('photos', {publicAccessLevel : 'blob'}, function(error, result, response) {
  if(!error) {
    console.log(response);

    console.log("creating image for student#: " + stud_id);
    blobSvc.createBlockBlobFromStream('photos', stud_id + '.jpg', toStream(imgData), imgData.size, function(error, result, response) {
      if(!error) {
        console.log("file upload: \n" + JSON.stringify(result) + " \n" + JSON.stringify(response));
        createPerson();

      } else {
        console.log("error: " + JSON.stringify(error));
      }
    });
  }
});