Uploading or Downloading a File to or from Azure WASB or ADLS¶

Prerequisites¶

The QDS role assigned to you must have upload and download permissions for the Object Storage resource; see Resources, Actions, and What they Mean.
You must configure CORS (Cross Origin Resource Sharing) for the Azure storage account you specified as the default for your QDS account:
- In the Azure Portal, navigate to Storage Accounts and choose the account you are using as the default for your QDS account.
- Under Settings, choose CORS.
- Enter the parameter values as follows:
  - ALLOWED ORIGIN: Enter https://azure.qubole.com.
  - ALLOWED METHODS: Check GET and PUT.
  - ALLOWED HEADERS: Enter Authorization. For Blob storage you can also use x-ms-blob-type or Content-Type
  - EXPOSED HEADERS: Enter Authorization. For Blob storage you can also use x-ms-blob-type or Content-Type
  - MAX AGE: Enter a number of seconds such as 3000.
For more information about configuring CORS for an Azure storage account, see this Azure article.

Proceed as follows:

In the QDS UI, navigate to the Explore page and choose My Blob or My ADLS from the drop-down list.
Browse to the default storage location for your QDS account.
- To upload a file:
  - Hover the cursor over the folder, click the gear icon that appears next it, and choose Upload. The file upload dialog appears.
  - Click Browse; navigate to the location of the file and select the file. Click Submit.
  - You’ll see a confirmation if the upload is successful or an error message if it fails.
  - Check for the file in the location you chose in step 3.
- To download a file:
  - Select the file from the tree under the default storage location.
  - Hover the cursor over the file, click the gear icon that appears next it, and choose Download. The file downloads to the default location configured in your browser.
  - A pop-up window shows the source path of the downloaded file and allows you to preview its contents.