express sendOverride()

sendOverride.js

/**
 * sendOverride()
 * Override response.send to do nothing when response is already sent
 * This is to minimize the error message
 */

function responseSendOverride() {
  return function(req,res,next){
    var _send = res.send;
    var sent = false;
    res.send = function(data){
        if(sent) {
          console.error("Header already sent!");
          return;
        }
        _send.bind(res)(data);
        sent = true;
    };
    next();
  }
}
module.exports = responseSendOverride;