Using NestJS and Mongoose, why isn't my updateOne method working to update a user's name by ID?

Question

In the update method of my NestJS UserService, I'm using updateOne to update a user's name by their ID. However, the update doesn't seem to be working properly. What am I doing wrong?

Here's the relevant code:

async update(id: ObjectId, updateUserDto: UpdateUserDto) {
  return await this.userModel.updateOne({
    _id: id,
    name: {
      firstName: updateUserDto.name.firstName,
      lastName: updateUserDto.name.lastName,
    },
  });
}

Thanks for helping me out!

When I call this method and pass in a user ID and a UpdateUserDto object containing a new first name and/or last name, I expect the user's name to be updated in the database. However, when I check the database after calling the update method, the name hasn't changed.

Answer 1

According to docs the correct function call should have 2 arguments: 1st for filter, 2nd for updated fields.

async update(id: ObjectId, updateUserDto: UpdateUserDto) {
  return await this.userModel.updateOne({_id: id,}, {
    name: {
      firstName: updateUserDto.name.firstName,
      lastName: updateUserDto.name.lastName,
    },
  });
}