Loopback: Apply trim function to all incoming string properties

Question

I would like to trim all the strings that are sent in an HTTP request to my loopback project. There are validators that I can use in the model files, but is there something I can do before the request reaches the model?

Thank You

Answer 1

You can write custom express middleware to trim your request data fields.

var trimmer = function(req, res, next){
  req.body = _.object(_.map(req.body, function (value, key) {
    return [key, value.trim()];
  }));
  next();
}

app.use(trimmer);

Follow this link for better understanding.