how to get blob-URL after file upload in azure

full working Javascript solution as of 2020:

const { BlobServiceClient } = require('@azure/storage-blob')

const AZURE_STORAGE_CONNECTION_STRING = '<connection string>'

async function main() {
  // Create the BlobServiceClient object which will be used to create a container client
  const blobServiceClient = BlobServiceClient.fromConnectionString(AZURE_STORAGE_CONNECTION_STRING);

  // Make sure your container was created
  const containerName = 'my-container'

  // Get a reference to the container
  const containerClient = blobServiceClient.getContainerClient(containerName);
  // Create a unique name for the blob
  const blobName = 'quickstart.txt';

  // Get a block blob client
  const blockBlobClient = containerClient.getBlockBlobClient(blobName);

  console.log('\nUploading to Azure storage as blob:\n\t', blobName);

  // Upload data to the blob
  const data = 'Hello, World!';
  await blockBlobClient.upload(data, data.length);
  
  console.log("Blob was uploaded successfully. requestId: ");
  console.log("Blob URL: ", blockBlobClient.url)
}

main().then(() => console.log('Done')).catch((ex) => console.log(ex.message));

For python users, you can use blob_client.url

Unfortunately it is not documented in docs.microsoft.com

from azure.storage.blob import BlobServiceClient
# get your connection_string - look at docs
blob_service_client = BlobServiceClient.from_connection_string(connection_string)
container_client = blob_service_client.get_container_client(storage_container_name)
You can call blob_client.url
blob_client = container_client.get_blob_client("myblockblob")
with open("pleasedelete.txt", "rb") as data:
    blob_client.upload_blob(data, blob_type="BlockBlob")
print(blob_client.url)

will return https://pleasedeleteblob.blob.core.windows.net/pleasedelete-blobcontainer/myblockblob

When you're using updated "Azure Storage Blobs" Package use below code.

BlobClient blobClient = containerClient.GetBlobClient("lg.jpg");

Console.WriteLine("Uploading to Blob storage as blob:\n\t {0}\n", containerClient.Uri);

using FileStream uploadFileStream = File.OpenRead(fileName);

if (uploadFileStream != null) 
    await blobClient.UploadAsync(uploadFileStream, true);

var absoluteUrl= blobClient.Uri.AbsoluteUri;

Assuming you're uploading the blobs into blob storage using .Net storage client library by creating an instance of CloudBlockBlob, you can get the URL of the blob by reading Uri property of the blob.

static void BlobUrl()
{
    var account = new CloudStorageAccount(new StorageCredentials(accountName, accountKey), true);
    var cloudBlobClient = account.CreateCloudBlobClient();
    var container = cloudBlobClient.GetContainerReference("container-name");
    var blob = container.GetBlockBlobReference("image.png");
    blob.UploadFromFile("File Path ....");//Upload file....

    var blobUrl = blob.Uri.AbsoluteUri;
}

View example on Pastebin