QByteArray url( "http://example.com/get_photo" ); // create a request parameters map QOAuth::ParamMap map; map.insert( "file", "flower_48.jpg" ); map.insert( "size", "small" ); // construct the authorization header QByteArray header = qoauth->createParametersString( requestUrl, QOAuth::GET, QOAuth::HMAC_SHA1, token, tokenSecret, map, QOAuth::ParseForHeaderArguments ); // append parameters string to the URL // alternatively you can use QOAuth::ParseForRequestContent if you want // to use the output as a POST request content (remember then of passing // QOAuth::POST above). url.append( qoauth->inlineParameters( map, QOAuth::ParseForInlineQuery ) ); QNetworkRequest request( QUrl( url ) ); request.setRawHeader( "Authorization", header ); // etc...