freeCodeCamp/curriculum/challenges/chinese/12-certificates/legacy-back-end-certificate/legacy-back-end-certificate.yml

---
id: 660add10cb82ac38a17513be
challengeType: 7
isPrivate: true
title: 旧版后端证书
---

## Description
<section id='description'>

</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - id: bd7158d8c443edefaeb5bdef
    title: Timestamp Microservice
  - id: bd7158d8c443edefaeb5bdff
    title: Request Header Parser Microservice
  - id: bd7158d8c443edefaeb5bd0e
    title: URL Shortener Microservice
  - id: bd7158d8c443edefaeb5bdee
    title: Image Search Abstraction Layer
  - id: bd7158d8c443edefaeb5bd0f
    title: File Metadata Microservice
  - id: bd7158d8c443eddfaeb5bdef
    title: Build a Voting App
  - id: bd7158d8c443eddfaeb5bdff
    title: Build a Nightlife Coordination App
  - id: bd7158d8c443eddfaeb5bd0e
    title: Chart the Stock Market
  - id: bd7158d8c443eddfaeb5bd0f
    title: Manage a Book Trading Club
  - id: bd7158d8c443eddfaeb5bdee
    title: Build a Pinterest Clone

```

</section>

## Challenge Seed
<section id='challengeSeed'>

</section>

## Solution
<section id='solution'>

```js
// solution required
```

</section>