var userSchema = new Schema({
  username: {type: String, unique: true, trim: true},
  password: {type: String},
  email: {type: String, trim: true},
  avatar: {type: String},
  fullname: {type: String},
  bio: {type: String},
  phone: {type: Number},
  country: {type: String},
  postal: {type: Number},
  followers: [{ type: Schema.ObjectId, ref: 'User' }],
  followed: [{ type: Schema.ObjectId, ref: 'User' }],
  registered: {type: Date, default: Date.now}

});

var User = mongoose.model('users',userSchema);