/**
* Extract the token from the request.
*
* @param RequestInterface $request
* The request.
*
* @return string
* The extracted token.
*/
protected function extractToken(RequestInterface $request)
{
$plugin_definition = $this->getPluginDefinition();
$options = $plugin_definition['options'];
$key_name = !empty($options['paramName']) ? $options['paramName'] : 'access_token';
// Access token may be on the request, or in the headers.
$input = $request->getParsedInput();
return empty($input[$key_name]) ? $request->getHeaders()->get($key_name)->getValueString() : $input[$key_name];
}
