public com.google.protobuf.ByteString getAuthorizationCodeBytes() {
    java.lang.Object ref = authorizationCode_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      authorizationCode_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }
public com . google . protobuf . ByteString getAuthorizationCodeBytes ( ) { java . lang . Object ref = authorizationCode_ ; if ( ref instanceof java . lang . String ) { com . google . protobuf . ByteString b = com . google . protobuf . ByteString . copyFromUtf8 ( ( java . lang . String ) ref ) ; authorizationCode_ = b ; return b ; } else { return ( com . google . protobuf . ByteString ) ref ; } }
<pre>
Optional OAuth2 authorization code to use with this transfer configuration.
If it is provided, the transfer configuration will be associated with the
authorizing user.
In order to obtain authorization_code, please make a
request to
https://www.gstatic.com/bigquerydatatransfer/oauthz/auth?client_id=&lt;datatransferapiclientid&gt;&amp;scope=&lt;data_source_scopes&gt;&amp;redirect_uri=&lt;redirect_uri&gt;
* client_id should be OAuth client_id of BigQuery DTS API for the given
data source returned by ListDataSources method.
* data_source_scopes are the scopes returned by ListDataSources method.
* redirect_uri is an optional parameter. If not specified, then
authorization code is posted to the opener of authorization flow window.
Otherwise it will be sent to the redirect uri. A special value of
urn:ietf:wg:oauth:2.0:oob means that authorization code should be
returned in the title bar of the browser, with the page text prompting
the user to copy the code and paste it in the application.
</pre>

<code>string authorization_code = 3;</code>