Files
freeCodeCamp/curriculum/challenges/chinese/05-back-end-development-and-apis/mongodb-and-mongoose/install-and-set-up-mongoose.md
Shaun Hamilton c2a11ad00d feat: add 'back/front end' in curriculum (#42596)
* chore: rename APIs and Microservices to include "Backend" (#42515)

* fix typo

* fix typo

* undo change

* Corrected grammar mistake

Corrected a grammar mistake by removing a comma.

* change APIs and Microservices cert title

* update title

* Change APIs and Microservices certi title

* Update translations.json

* update title

* feat(curriculum): rename apis and microservices cert

* rename folder structure

* rename certificate

* rename learn Markdown

* apis-and-microservices -> back-end-development-and-apis

* update backend meta

* update i18n langs and cypress test

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

* fix: add development to front-end libraries (#42512)

* fix: added-the-word-Development-to-front-end-libraries

* fix/added-the-word-Development-to-front-end-libraries

* fix/added-word-development-to-front-end-libraries-in-other-related-files

* fix/added-the-word-Development-to-front-end-and-all-related-files

* fix/removed-typos-from-last-commit-in-index.md

* fix/reverted-changes-that-i-made-to-dependecies

* fix/removed xvfg

* fix/reverted changes that i made to package.json

* remove unwanted changes

* front-end-development-libraries changes

* rename backend certSlug and README

* update i18n folder names and keys

* test: add legacy path redirect tests

This uses serve.json from the client-config repo, since we currently use
that in production

* fix: create public dir before moving serve.json

* fix: add missing script

* refactor: collect redirect tests

* test: convert to cy.location for stricter tests

* rename certificate folder to 00-certificates

* change crowdin config to recognise new certificates location

* allow translations to be used

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* add forwards slashes to path redirects

* fix cypress path tests again

* plese cypress

* fix: test different challenge

Okay so I literally have no idea why this one particular challenge
fails in Cypress Firefox ONLY. Tom and I paired and spun a full build
instance and confirmed in Firefox the page loads and redirects as
expected. Changing to another bootstrap challenge passes Cypress firefox
locally. Absolutely boggled by this.

AAAAAAAAAAAAAAA

* fix: separate the test

Okay apparently the test does not work unless we separate it into
a different `it` statement.

>:( >:( >:( >:(

Co-authored-by: Sujal Gupta <55016909+heysujal@users.noreply.github.com>
Co-authored-by: Noor Fakhry <65724923+NoorFakhry@users.noreply.github.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>
2021-08-13 21:57:13 -05:00

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---
id: 587d7fb6367417b2b2512c06
title: 安装和设置 Mongoose
challengeType: 2
forumTopicId: 301540
dashedName: install-and-set-up-mongoose
---
# --description--
可以采用下面的任意一种方式完成这些挑战:
- 克隆 [GitHub repo](https://github.com/freeCodeCamp/boilerplate-mongomongoose/) 并在本地完成项目。
- 使用[我们的 Replit 上的初始化项目](https://replit.com/github/freeCodeCamp/boilerplate-mongomongoose)来完成项目。
- 使用你选择的网站生成器来完成项目, 并确保包含了我们 GitHub 仓库的所有文件。
当完成本项目,请确认有一个正常运行的 demo 可以公开访问。 然后将 URL 提交到 `Solution Link` 中。
在这个挑战中,你将建立一个 MongoDB Atlas 数据库并导入连接到它所需的软件包。
按照<a href='https://www.freecodecamp.org/news/get-started-with-mongodb-atlas/' rel='noopener noreferrer' target='_blank'>这篇教程</a>在 MongoDB Atlas 创建一个托管数据库。
# --instructions--
`mongodb``mongoose` 添加到项目的 `package.json` 文件中。 然后,在 `myApp.js` 文件中请求 `mongoose`。 创建一个 `.env` 文件,给它添加一个 `MONGO_URI` 变量。 变量的值为你的 MongoDB Atlas 数据库 URI。 应用单引号或双引号包裹 URI。请记住环境变量 `=` 两边不能有空格。 例如,`MONGO_URI='VALUE'`。 完成后,使用下面的代码来连接数据库。
```js
mongoose.connect(<Your URI>, { useNewUrlParser: true, useUnifiedTopology: true });
```
# --hints--
“mongodb” 应在 package.json 中作为依赖项定义。
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/file/package.json').then(
(data) => {
var packJson = JSON.parse(data);
assert.property(packJson.dependencies, 'mongodb');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
“mongoose” 应在 package.json 中作为依赖项定义。
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/file/package.json').then(
(data) => {
var packJson = JSON.parse(data);
assert.property(packJson.dependencies, 'mongoose');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
应使用 “mongoose” 连接数据库。
```js
(getUserInput) =>
$.get(getUserInput('url') + '/_api/is-mongoose-ok').then(
(data) => {
assert.isTrue(data.isMongooseOk, 'mongoose is not connected');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
# --solutions--
```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.
*/
```