Backblaze and Phoenix LiveView Uploads

Upload to Backblaze via LiveView Uploads FTW. Thanks for all your help!

to help clarify for others, my_b2_access_key_id goes first, my_b2_application_key goes second

      :aws_signature.sign_v4_query_params(
        "my_b2_access_key_id",
        "my_b2_application_key",
        "us-east-005",

Could you please also show how to get back the url of the saved file and update the changeset, do we need to use the consume_uploaded_entries function?