'The first argument must be an instance of Buffer' with valid buffer when calling uploadData()

• azure/storage-blob:
• 12.11.0
• Operating system:
• nodejs
  • 16.13.0
• typescript
  • 4.6.3

Describe the bug Similar to https://github.com/Azure/azure-sdk-for-js/issues/22534. But I updated to the latest release (@azure/storage-blob@12.11.0) and it’s still failing. I’m also not trying to read any data; just uploading.

The error I get is TypeError [ERR_INVALID_ARG_TYPE]: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received undefined

My code looks like:

await blockBlobClient.uploadData(imgBuffer, {
  blobHTTPHeaders: {
   blobContentType: 'image/jpeg',
  },
});

I verified that imgBuffer is a valid buffer with image content (created with canvas.toBuffer('image/jpeg')).

I’m wondering if providing blobHTTPHeaders but NOT including blobContentMD5 among them is causing problems?

To Reproduce Steps to reproduce the behavior:

1. Get an image buffer with canvas.toBuffer('image/jpeg')
2. Set ops = { blobHTTPHeaders: { blobContentTypes: 'image/jpeg } }
3. Call blockBlobClient.uploadData(imgBuffer, ops);

Expected behavior Blob is saved to storage.

[icanfathom]

Friends.

I am the worst.

I refactored my project and forgot to put my new connection keys into local.settings.json. So that was the problem. I was passing in undefined for accountName, accountKey when calling new StorageSharedKeyCredential().

I suppose it would be nice to get a more helpful error message in this case. But I leave that up to your (clearly) more capable minds.

@EmmaZhu Feel free to close this if desired.

[xirzec]

@icanfathom I have made more and sillier mistakes! Please don’t feel bad. I’m very happy you were able to get to the bottom of your trouble.

@EmmaZhu perhaps putting some runtime checks into StorageSharedKeyCredential would be useful, since it shouldn’t get run very often?