ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
66 lines
2.0 KiB
Markdown
66 lines
2.0 KiB
Markdown
---
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id: 587d7fb2367417b2b2512bf5
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title: 从客户端获取路由参数输入
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challengeType: 2
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forumTopicId: 301513
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dashedName: get-route-parameter-input-from-the-client
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---
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# --description--
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在构建 API 时，我们要让用户告诉我们他们想从服务中获取什么。举个例子，如果客户请求数据库中存储的用户信息，他们需要一种方法让我们知道他们对哪个用户感兴趣。实现这个需求的的方式就是使用路由参数。路由参数是由斜杠 (/) 分隔的 URL 命名段。每一小段能捕获与其位置匹配的 URL 部分的值。捕获的值能够在`req.params`对象中找到。
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<blockquote>route_path: '/user/:userId/book/:bookId'<br>actual_request_URL: '/user/546/book/6754' <br>req.params: {userId: '546', bookId: '6754'}</blockquote>
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# --instructions--
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在路由中`GET /:word/echo`构建一个 echo 服务，响应一个采用`{echo: word}`结构的 JSON 对象。你可以在`req.params.word`中找到要重复的单词。你可以在浏览器的地址栏测试你的路由，访问一些匹配的路由，比如：your-app-rootpath/freecodecamp/echo
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# --hints--
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测试 1：你的 echo 服务应该正确地重复单词
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/eChOtEsT/echo').then(
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(data) => {
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assert.equal(
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data.echo,
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'eChOtEsT',
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'Test 1: the echo server is not working as expected'
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);
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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```
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测试 2：你的 echo 服务应该正确地重复单词
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/ech0-t3st/echo').then(
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(data) => {
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assert.equal(
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data.echo,
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'ech0-t3st',
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'Test 2: the echo server is not working as expected'
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);
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},
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(xhr) => {
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throw new Error(xhr.responseText);
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}
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);
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```
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# --solutions--
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```js
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/**
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Backend challenges don't need solutions,
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because they would need to be tested against a full working project.
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Please check our contributing guidelines to learn more.
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*/
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```
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