41 lines
1.2 KiB
Markdown
41 lines
1.2 KiB
Markdown
---
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id: 587d7fb7367417b2b2512c0d
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title: Use model.findById() to Search Your Database By _id
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challengeType: 2
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---
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## Description
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<section id='description'>
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When saving a document, mongodb automatically adds the field _id, and set it to a unique alphanumeric key. Searching by _id is an extremely frequent operation, so mongoose provides a dedicated method for it. Find the (only!!) person having a given _id, using Model.findById() -> Person. Use the function argument personId as search key.
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</section>
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## Instructions
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<section id='instructions'>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: Find an item by Id should succeed
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testString: 'getUserInput => $.get(getUserInput(''url'') + ''/_api/find-by-id'').then(data => { assert.equal(data.name, ''test'', ''item.name is not what expected''); assert.equal(data.age, 0, ''item.age is not what expected''); assert.deepEqual(data.favoriteFoods, [''none''], ''item.favoriteFoods is not what expected''); assert.equal(data.__v, 0, ''The item should be not previously edited''); }, xhr => { throw new Error(xhr.responseText); })'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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