how to add validation to nedb?

[akralj]

hi all. I am trying to include a validator on post requests and I am pretty lost. I don't know how to add a proper response for the browser. i tried it with hooks and all sorts of others things, but no luck.
I get an exception in the browser with the code below.

var apiService, app, bodyParser, errors, feathers, hooks, nedb, port;

feathers = require('feathers');
hooks = require('feathers-hooks');
nedb = require('feathers-nedb');
bodyParser = require('body-parser');
errors = require('feathers-errors').types;

apiService = nedb('api').extend({
  create: function(data, params, cb) {
    var valid;
    if (valid = false) {
      console.log("update", data);
      return this._super(data, params, cb);
    } else {
      //WHAT TO CALL HERE, to get a proper response for the browser
      return cb(new errors.BadRequest("not valid"));
    }
  }
});

app = feathers()
.configure(hooks())
.use(feathers["static"]('./client/dist'))
.configure(feathers.socketio())
.configure(feathers.rest())
.use(bodyParser.json())
.use(bodyParser.urlencoded({extended: true}))
.use('api', apiService)
.use(function(err, req, res, next) {
  console.log(err);
  res.status(404);
  return res.json({
    message: err.message
  });
});

port = 7777;
app.listen(port, function() {
  return console.log('Feathers server listening on port ' + port);
});

and the following client request:

var data, url;

data = {
  username: "franzl",
  date: new Date(),
  type: "stammtisch"
};

url = "/api";

fetch(url, {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify(data)
}).then(function(res) {
  return console.log(res);
})["catch"](function(err) {
  return console.log(err);
});

Feathers in build error messages work fine when trying a GET to a missing id, but not my own validator.

thanks a lot and happy new year.

[daffl]

It doesn't look like your extended code would work the way I'd expect it. Did you look at the guide for using hooks for validation?

A simple extended validator can look like this:

apiService = nedb('api').extend({
  create: function(data, params, cb) {
    if(!data.name) {
      return cb(new errors.BadRequest('Name needs to be provided'));
    }

    return this._super(data, params, cb);
  }
});

If you now try to submit data without a name property you should get a BadRequest error.

[akralj]

merci vielmals :)
that was it. My code was working before too, but I did not read my fetch result properly.

[ekryski]

🎉 Glad that worked for you!

@akralj I did also notice that you had if (valid = false). That's gonna cause problems 😄

[akralj]

@ekryski
(if (valid = false)) of course. but that was only for testing.