mongodb - `mongolab` - 发布时出错，无法发布数据

Question

我在 mongolab(mlab) 上有一个帐户。我正在尝试使用 chrome 浏览器中的 postman 附加组件为用户发布数据。我总是收到错误。我无法发布数据。我尝试过其他不同的方法。但没有运气。

有人帮我解决这个问题吗？

这是我的 api.js :

var
    User        = require('../models/user'),
    config      = require('../../config'),
    secretKey   = config.secretKey; 


module.exports = function( app, express ) {

    var api = express.Router();

    api.post('/signup', function (req, res) {

        var user = new User({

            name:req.body.name,
            username:req.body.username,
            password:req.body.password

        });

        user.save(function(err){

            if(err){
                res.send(err);
                return;
            }

            res.json({message:'User has been Created!'});
        });
    });


    api.get('/users', function(req, res) {

        User.find({}, function( req, users){
            if(err) {
                res.send(err);
                return;
            }

            res.json(users);
        })

    });

    return api;

}

config.js :

module.exports = {
    "database":"mongodb://xxx:xxxx@ds015700.mlab.com:15700/arifstory",
    "port" : process.env.PORT || 3000,
    "secretKey" : "YourSecretKey"
}

还有 user.js :

var
    mongoose    = require('mongoose'),
    Schema      = mongoose.Schema,
    bcrypt      = require('bcrypt-nodejs');


var UserSchema = new Schema({

    name : String,
    userName:{ type:String, required:true, index : { unique: true }},
    password : { type:String, required : true, select : false }

});

UserSchema.pre('save', function(next) {

    var user = this;

    if(!user.isModified('password')) return next();

    bcrypt.hash( user.password, null, null, function(err, hash) {
        if(err) return next(err);

        user.password = hash;
        next();
    });

});

UserSchema.methods.comparePassword = function( password ) {

    var user = this;

    return bcrypt.compareSync(password, user.password);

}

module.exports = mongoose.model('User', UserSchema);

我真的无法理解这里的问题。请任何人帮助我？

错误

{
  "message": "User validation failed",
  "name": "ValidationError",
  "errors": {
    "userName": {
      "message": "Path `userName` is required.",
      "name": "ValidatorError",
      "properties": {
        "type": "required",
        "message": "Path `{PATH}` is required.",
        "path": "userName"
      },
      "kind": "required",
      "path": "userName"
    },
    "password": {
      "message": "Path `password` is required.",
      "name": "ValidatorError",
      "properties": {
        "type": "required",
        "message": "Path `{PATH}` is required.",
        "path": "password"
      },
      "kind": "required",
      "path": "password"
    }
  }
}

Answer 1

从 chrome 发送的数据可能是未定义的。

通过在 api.js 文件中包含 user.save 函数上方的以下两行，在控制台中打印它:console.log(req.body.username);console.log(req.body.password);

如果它显示为未定义，请确保在 Postman 的“body”下检查“x-www-form-urlencoded”并在其下提供用户名和密码。