Loopback: <model>.verify is not a function\n

Created on 9 Mar 2016 · 11Comments · Source: strongloop/loopback

So, I read the documentation about manage the users. I also comes from this example: https://github.com/strongloop/loopback-example-user-management.

Then I try to make a model, called user-basic which bases on built-in model User.
Here's the user-basic.json:

{
  "name": "user-basic", 
  "base": "User",
  "idInjection": true, 
  "properties": {},
  "validations": [],
  "relations": {},
  "acls": [
    {
      "principalType": "ROLE",
      "principalId": "$everyone",
      "accessType": "READ",
      "permission": "ALLOW"
    }
  ],
  "methods": {}
}

Here's the user-basic.js

var config = require('../../server/config.json');
var path = require('path');


module.exports = function(UserBasic) {
          UserBasic.afterRemote('create', function(ctx, member, next) {
            console.log('> user.afterRemote triggered');
            var options = {
              type: 'email',
              to: UserBasic.email,
              from: '[email protected]',
              subject: 'Thanks for registering.',
              template: path.resolve(__dirname, '../../server/views/verify.ejs'),
              redirect: '/verified',
              user: UserBasic
            };
            UserBasic.verify(options, function(err) {
              console.log('aaaaa', member.location, err);
              if (err) {
                next(err);
              } else {
                next();
              }
            });

          });

          //send password reset link when requested
          UserBasic.on('resetPasswordRequest', function(info) {
            var url = 'http://' + config.host + ':' + config.port + '/reset-password';
            var html = 'Click <a href="' + url + '?access_token=' +
              info.accessToken.id + '">here</a> to reset your password';

            UserBasic.app.models.Email.send({
              to: info.email,
              from: info.email,
              subject: 'Password reset',
              html: html
            }, function(err) {
              if (err) return console.log('> error sending password reset email');
              console.log('> sending password reset email to:', info.email);
            });
          });
        };

In DataSource, I am using Cloudant (couchDB), here it is:

{
  "db": {
    "name": "db",
    "connector": "memory"
  }, 
  "cloudant-pop": {
    "host": "userxxx.cloudant.com",
    "port": 443,
    "url": "https://userxxx.com",
    "database": "population",
    "password": "userxxx",
    "name": "cloudant-pop",
    "connector": "couch",
    "db": "population",
    "protocol": "https",
    "auth": {
      "admin": {
       "username": "userxxx",
        "password": "userxxx"
      },
      "reader": {
        "username": "userxxx",
        "password": "userxxx"
      },
      "writer": {
        "username": "userxxx",
        "password": "userxxx"
      }
    },
    "user": "userxxx"
  }, 
  "emailDs": {
    "name": "emailDs",
    "connector": "mail",
    "transports": [
      {
        "type": "smtp",
        "host": "smtp.gmail.com",
        "secure": true,
        "port": 465,
        "tls": {
          "rejectUnauthorized": false
        },
        "auth": {
          "user": "[email protected]",
          "pass": "aaa"
        }
      }
    ]
  }
}

This is my model-config.json, Since I want to store the user credential to my Cloudant DB so I connect my user-basic model to my Cloudant Datasource:

"user-basic": {
    "dataSource": "cloudant-pop",
    "public": true,
    "options": {
      "emailVerificationRequired": true
    }
  }

I ran the server and try POST a new user via http://0.0.0.0:3008/explorer. It gives me an error:

{
  "error": {
    "name": "TypeError",
    "status": 500,
    "message": "UserBasic.verify is not a function",
    "stack": "TypeError: UserBasic.verify is not a function\n    at /Users/yogieputra/Desktop/backend_powercube/common/models/user-basic.js:23:23\n    at Function.<anonymous> (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback/lib/model.js:207:11)\n    at execStack (/Users/yogieputra/Desktop/backend_powercube/node_modules/strong-remoting/lib/remote-objects.js:480:26)\n    at RemoteObjects.execHooks (/Users/yogieputra/Desktop/backend_powercube/node_modules/strong-remoting/lib/remote-objects.js:492:10)\n    at phaseAfterInvoke (/Users/yogieputra/Desktop/backend_powercube/node_modules/strong-remoting/lib/remote-objects.js:652:10)\n    at runHandler (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-phase/lib/phase.js:130:5)\n    at iterate (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-phase/node_modules/async/lib/async.js:146:13)\n    at Object.async.eachSeries (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-phase/node_modules/async/lib/async.js:162:9)\n    at runHandlers (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-phase/lib/phase.js:139:13)\n    at iterate (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-phase/node_modules/async/lib/async.js:146:13)"
  }
}

When I check the Database, I got the user data that I've been POST recently.
Can you guys tell me what I've been missing?
Please help

Source

yogieputra8

Most helpful comment

Sorry, forgot to post the link: https://docs.strongloop.com/display/public/LB/Registering+users

richardpringle on 25 Apr 2016

👍2

All 11 comments

Hey @yogieputra8, check the API docs. The verify method is a prototype method, so you would need to call member.verify judging by your code.

For all your *myModel.js files, the argument passed into the module.exports function is a model class. So in your case, UserBasic is not a user/member, it is a user class. I think you have improperly used it in a couple places.

Let me know if that helps! If it doesn't solve your issue, I'll take another look.

Happy coding!

richardpringle on 9 Mar 2016

@richardpringle thank you for the response, I changed my /models/user-basic.js become this:

member.verify(options, function(err) {
              console.log('aaaaa', member.location, err);
              if (err) {
                next(err);
              } else {
                next();
              }
            });

And now it gives me another error when I try to POST data via explorer:

Web server listening at: http://0.0.0.0:3008
Browse your REST API at http://0.0.0.0:3008/explorer
> user.afterRemote triggered
events.js:141
      throw er; // Unhandled 'error' event
      ^

Error: You must connect the Email Model to a Mail connector
    at Function.Email.send (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback/common/models/email.js:42:11)
    at sendEmail (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback/common/models/user.js:429:13)
    at /Users/yogieputra/Desktop/backend_powercube/node_modules/loopback/common/models/user.js:407:11
    at ModelConstructor.<anonymous> (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-datasource-juggler/lib/dao.js:2033:21)
    at ModelConstructor.next (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-datasource-juggler/lib/hooks.js:75:12)
    at ModelConstructor.<anonymous> (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-datasource-juggler/lib/dao.js:2032:28)
    at ModelConstructor.next (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-datasource-juggler/lib/hooks.js:75:12)
    at /Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-datasource-juggler/lib/dao.js:2031:28
    at doNotify (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-datasource-juggler/lib/observer.js:93:49)
    at doNotify (/Users/yogieputra/Desktop/backend_powercube/node_modules/loopback-datasource-juggler/lib/observer.js:93:49)

I already put the email connector in my datasources, why loopback warn me to connect the Email Model to a Mail connector?

yogieputra8 on 10 Mar 2016

In order to help you further, I'm going to ask you to fork the loopback-sandbox and then send me a link or if you have a public repo on github, I could also take a look at that. It looks to me as though you have setup the "mail" datasource correctly, but not attached it to the Email model in your model-config.json.

richardpringle on 10 Mar 2016

👍1

Ahh, I get it. I add the email connector to my model-config.json just like this:

  "Email": {
    "dataSource": "emailDs"
  },

And everythings working fine

@richardpringle thank you for the help. Really appreciate that :)

yogieputra8 on 11 Mar 2016

Glad it worked it worked out! Closing the issue now.

richardpringle on 11 Mar 2016

I think to prevent this issue from opening again we can clear up the documentation. The example here re-uses user as the model name and the model instance, and it's causing people a lot of confusion. Seen this issue raised more than a couple times. Switching the first instance of user with User would clear everything up.

enceladus on 21 Apr 2016

@crandmck, want me to open a new issue for the above comment?
@enceladus is right, we shouldn't use the same variable name twice. I might also even suggest that the upper/lower-case 'u' might not be enough of a difference for new LoopBack users (developers). Maybe something like userInstance could be used to make things unquestionably clear.

I personally prefer the upper/lower-case convention for instance vs. class but I don't think it's the best for examples.

richardpringle on 22 Apr 2016

@richardpringle I'd appreciate it if you could update the docs, since you're up to speed on this specific thing, and I'm at an offsite currently.