How to upload a file to a specific Azure Storage container using an Azure Function?

Question

Currently I am working on an API that allows customers to upload their files to their own containers in my storage account. I provide them with an SAS token and a container name, and then they upload their file to their specific container. Here is a snippet of my current code:

var bodyBuffer = Buffer.from(req.body);
var boundary = multipart.getBoundary(req.headers['content-type']);
var parts = multipart.Parse(bodyBuffer, boundary);  

const sasURL = "https://myaccountname.blob.core.windows.net/" + container + "?" + accessKey;
const containerClient = new BlobContainerClient(sasURL);
const blobName = parts[0].filename;
const blockBlobClient = containerClient.getBlockBlobClient(blobName);
const uploadBlobReponse = await blockBlobClient.upload(parts[0].data, parts[0].data.length);

"container" is the name of the container that the customer is uploading to, and "accessKey" is the token I provide them with. This code is not working, and I'm not sure what is wrong with it. Azure states that the value with uploadBlobResponse is never read but I don't know how to fix the issue. Thank you.

Answer 1

Fixed the issue, the new code is below. I found out that my BlobServiceClient was not properly defined.

        const sasURL = "https://myaccountname.blob.core.windows.net/" + "?" + accessKey;
        const blobServiceClient = new BlobServiceClient(sasURL);
        const containerClient = blobServiceClient.getContainerClient(container);
        const blobName = parts[0].filename;
        const blockBlobClient = containerClient.getBlockBlobClient(blobName);
        const uploadBlobReponse = await blockBlobClient.upload(parts[0].data, parts[0].data.length);