freeCodeCamp/curriculum/challenges/english/05-back-end-development-and-apis/mongodb-and-mongoose/perform-new-updates-on-a-document-using-model.findoneandupdate.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
587d7fb8367417b2b2512c0f	Perform New Updates on a Document Using model.findOneAndUpdate()	2	301542	perform-new-updates-on-a-document-using-model-findoneandupdate

--description--

Recent versions of Mongoose have methods to simplify documents updating. Some more advanced features (i.e. pre/post hooks, validation) behave differently with this approach, so the classic method is still useful in many situations. findByIdAndUpdate() can be used when searching by id.

--instructions--

Modify the findAndUpdate function to find a person by Name and set the person's age to 20. Use the function parameter personName as the search key.

Note: You should return the updated document. To do that, you need to pass the options document { new: true } as the 3rd argument to findOneAndUpdate(). By default, these methods return the unmodified object.

--hints--

findOneAndUpdate an item should succeed

(getUserInput) =>
  $.post(getUserInput('url') + '/_api/find-one-update', {
    name: 'Dorian Gray',
    age: 35,
    favoriteFoods: ['unknown']
  }).then(
    (data) => {
      assert.equal(data.name, 'Dorian Gray', 'item.name is not what expected');
      assert.equal(data.age, 20, 'item.age is not what expected');
      assert.deepEqual(
        data.favoriteFoods,
        ['unknown'],
        'item.favoriteFoods is not what expected'
      );
      assert.equal(
        data.__v,
        0,
        'findOneAndUpdate does not increment version by design!'
      );
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

--solutions--

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