code: function processRequest(options, req, res, next) {
    debug('processing HTTP request');
  
    var seneca = req.seneca;
  
    options.createContext(req, res, createDefaultContext(options, req), function (error, context) {
      if (error) {
        next(error);
      } else {
        setContext(seneca, context);
        next();
      }
    });
  }
docs: Derives a context from an HTTP request and
  ensures that it is available to all seneca actions in this transaction.