Files
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: 587d7fb2367417b2b2512bf6
title: 从客户端获取输入的查询参数
challengeType: 2
forumTopicId: 301512
dashedName: get-query-parameter-input-from-the-client
---
# --description--
从客户端获取输入的另一种常见方式是使用查询字符串对路由路径中的数据进行编码, 查询字符串使用标记(?)分隔,并且包含键值对 field=value 每对键值使用连字号(&)分隔。 Express 能够从查询字符串中解析这些数据,并且把它放到 `req.query` 对象中。 有些字符(如百分号(%))不能在出现在 URL 中,它们在发送前必须以不同的格式进行编码。 如果使用 JavaScript 的 API可以用特定的方法来编码/解码这些字符。
<blockquote>路由地址:'/library'<br> 实际请求 URL'/library?userId=546&#x26;bookId=6754'<br>req.query{userId: '546', bookId: '6754'}</blockquote>
# --instructions--
构建一个 API 接口,使用路由挂载在 `GET /name` 上, 使用一个 JSON 文件来响应,它的结构是这样的:`{ name: 'firstname lastname'}` 名字first name和姓氏last name参数应该编码在查询参数中例如`?first=firstname&last=lastname`
**注意:** 在后面的练习中,我们将向相同的路由路径 `/name` 发送 POST 请求来接收数据。 如果愿意,可以使用`app.route(path).get(handler).post(handler)`这中写法, 这种语法允许在同一路径路由上链式调用不同的请求方法, 可以节省一点打字时间,也可以让代码看起来更清晰。
# --hints--
测试 1你的 API 应该用正确的名字来响应
```js
(getUserInput) =>
$.get(getUserInput('url') + '/name?first=Mick&last=Jagger').then(
(data) => {
assert.equal(
data.name,
'Mick Jagger',
'Test 1: "GET /name" route does not behave as expected'
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
```
测试 2你的 API 应该用正确的名字来响应
```js
(getUserInput) =>
$.get(getUserInput('url') + '/name?last=Richards&first=Keith').then(
(data) => {
assert.equal(
data.name,
'Keith Richards',
'Test 2: "GET /name" route does not behave as expected'
);
},
(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.
*/
```