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freeCodeCamp/curriculum/challenges/english/05-apis-and-microservices/mongodb-and-mongoose/use-model.find-to-search-your-database.md

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---
id: 587d7fb7367417b2b2512c0b
title: Use model.find() to Search Your Database
challengeType: 2
forumTopicId: 301543
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---
## Description
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<section id='description'>
In its simplest usage, `Model.find()` accepts a query document (a JSON object) as the first argument, then a callback. It returns an array of matches. It supports an extremely wide range of search options. Read more in the docs.
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</section>
## Instructions
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<section id='instructions'>
Modify the `findPeopleByName` function to find all the people having a given name, using `Model.find() -> [Person]`
Use the function argument `personName` as the search key.
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</section>
## Tests
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<section id='tests'>
```yml
tests:
- text: Find all items corresponding to a criteria should succeed
testString: |
getUserInput => $.post(getUserInput('url') + '/_api/find-all-by-name', {name: 'r@nd0mN4m3', age: 24, favoriteFoods: ['pizza']}).then(data => {
assert.isArray(data, 'the response should be an Array');
assert.equal(data[0].name, 'r@nd0mN4m3', 'item.name is not what expected');
assert.equal(data[0].__v, 0, 'The item should be not previously edited');
}, xhr => { throw new Error(xhr.responseText); })
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```
</section>
## Challenge Seed
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<section id='challengeSeed'>
</section>
## Solution
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<section id='solution'>
```js
/**
Backend challenges don't need solutions,
because they would need to be tested against a full working project.
Please check our contributing guidelines to learn more.
*/
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```
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</section>