82 lines
1.9 KiB
Markdown
82 lines
1.9 KiB
Markdown
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---
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id: 58965611f9fc0f352b528e6c
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title: 用戶退出登錄
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challengeType: 2
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forumTopicId: 301560
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dashedName: logging-a-user-out
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---
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# --description--
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創建退出登錄的邏輯是比較簡單的。 只要用戶嘗試退出登錄，路由就應重定向到主頁，而不應該顯示任何其他頁面。
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在 passport 裏，只需要在重定向前調用 `req.logout();` 即可完成用戶的退出登錄。
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```js
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app.route('/logout')
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.get((req, res) => {
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req.logout();
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res.redirect('/');
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});
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```
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你可能注意到我們還沒有處理 404 錯誤，這個錯誤碼代表頁面無法找到。 在 Node 中我們通常會用如下的中間件來處理。 請在所有路由之後添加這段代碼：
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```js
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app.use((req, res, next) => {
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res.status(404)
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.type('text')
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.send('Not Found');
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});
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```
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完成上述要求後，請提交你的頁面鏈接。 如果你遇到了問題，可以參考[這裏](https://gist.github.com/camperbot/c3eeb8a3ebf855e021fd0c044095a23b)的答案。
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# --hints--
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`req.Logout` 應在 `/logout` 路由中調用。
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/_api/server.js').then(
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(data) => {
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assert.match(
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data,
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/req.logout/gi,
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'You should be calling req.logout() in your /logout route'
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);
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},
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(xhr) => {
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throw new Error(xhr.statusText);
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}
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);
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```
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退出登錄後應重定向到主頁 /。
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```js
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(getUserInput) =>
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$.get(getUserInput('url') + '/logout').then(
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(data) => {
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assert.match(
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data,
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/Home page/gi,
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'When a user logs out they should be redirected to the homepage'
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);
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},
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(xhr) => {
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throw new Error(xhr.statusText);
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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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