🏇🏽 🏇 🚠 使用Sentry跟踪React应用中的错误 📒 🤹🏻 📩

今天，我将向您介绍React应用程序中的实时错误跟踪。前端应用程序通常不用于错误跟踪。一些公司经常通过在文档，测试等之后返回错误跟踪来推迟错误跟踪。但是，如果您可以更好地更改产品，那就去做吧！

1.为什么需要哨兵？

我假设您有兴趣在生产期间跟踪错误

您认为这还不够吗？

好的，让我们看看细节。

对开发人员使用Sentry的主要原因：

消除部署错误代码的风险
QA协助代码测试
快速获取问题通知
快速修复错误的能力
在管理面板中方便地显示错误
按用户/浏览器细分排序错误

项目首席执行官/负责人的主要原因

省钱（可以在您的服务器上安装Sentry）
获取用户反馈
实时了解您的项目出了什么问题
了解人们在您的应用程序中遇到的问题数量
帮助您找到开发人员犯错的地方

, . , Sentry.

Sentry?

Sentry – , , . , . Sentry JavaScript, Node, Python, PHP, Ruby, Java .

2.

Sentry . , . ( Sentry )
. ( React. « »)

. , Sentry , :

import * as Sentry from '@sentry/browser';
// Sentry.init({
//  dsn: "<https://63bbb258ca4346139ee533576e17ac46@sentry.io/1432138>"
// });
// should have been called before using it here
// ideally before even rendering your react app 

class ExampleBoundary extends Component {
    constructor(props) {
        super(props);
        this.state = { error: null };
    }

    componentDidCatch(error, errorInfo) {
      this.setState({ error });
      Sentry.withScope(scope => {
        Object.keys(errorInfo).forEach(key => {
          scope.setExtra(key, errorInfo[key]);
        });
        Sentry.captureException(error);
      });
    }

    render() {
        if (this.state.error) {
            //render fallback UI
            return (
              <a onClick={() => Sentry.showReportDialog()}>Report feedback</a>
            );
        } else {
            //when there's not an error, render children untouched
            return this.props.children;
        }
    }
}

Sentry , , . . , . , !

3. React Sentry

npm .

npm i @sentry/browser

Sentry :

Sentry.init({
 // dsn: #dsnUrl,
});

DSN Projects -> Settings -> Client Keys. .

componentDidCatch(error, errorInfo) {
  Sentry.withScope(scope => {
    Object.keys(errorInfo).forEach(key => {
      scope.setExtra(key, errorInfo[key]);
    });
    Sentry.captureException(error);
 });
}

4.

API Deezer. . . "undefined"

, console.log user.email. : Uncaught TypeError ( email) - . Javascript.

<button type="button" onClick={() => console.log(user.email)}>   
  Test Error button 
</button>

import React, { Component } from "react";
import { connect } from "react-redux";
import { Input, List, Skeleton, Avatar } from "antd";
import * as Sentry from "@sentry/browser";
import getList from "../store/actions/getList";

const Search = Input.Search;

const mapState = state => ({
  list: state.root.list,
  loading: state.root.loading
});

const mapDispatch = {
  getList
};

class Container extends Component {
  constructor(props) {
    super(props);

    Sentry.init({
      dsn: "https://fc0edcf6927a4397855797a033f04085@sentry.io/1417586",
    });
  }

  componentDidCatch(error, errorInfo) {
    Sentry.withScope(scope => {
      Object.keys(errorInfo).forEach(key => {
        scope.setExtra(key, errorInfo[key]);
      });
      Sentry.captureException(error);
    });
  }
  render() {
    const { list, loading, getList } = this.props;
    const user = undefined;
    return (
      <div className="App">
        <button
          type="button"
          onClick={() => console.log(user.email)}
        >
          test error1
        </button>
        <div onClick={() => Sentry.showReportDialog()}>Report feedback1</div>
        <h1>Music Finder</h1>
        <br />
        <Search onSearch={value => getList(value)} enterButton />
        {loading && <Skeleton avatar title={false} loading={true} active />}
        {!loading && (
          <List
            itemLayout="horizontal"
            dataSource={list}
            locale={{ emptyText: <div /> }}
            renderItem={item => (
              <List.Item>
                <List.Item.Meta
                  avatar={<Avatar src={item.artist.picture} />}
                  title={item.title}
                  description={item.artist.name}
                />
              </List.Item>
            )}
          />
        )}
      </div>
    );
  }
}

export default connect(
  mapState,
  mapDispatch
)(Container);

Whoo-hoo!

, .

. , , , . ReactJS, .

, , .

. , Dmitry Nozhenko source map. , Dmitry Nozhenko, .

5. Sentry API

. javascript . , XHR?

Sentry . api.

Sentry.captureException(err)

, , , , . .

superagent
  .get(`https://deezerdevs-deezer.p.rapidapi.com/search?q=${query}`)
  .set("X-RapidAPI-Key", #id_key)
  .end((err, response) => {
    if (err) {
      Sentry.configureScope(
        scope => scope
          .setUser({"email": "john.doe@example.com"})
          .setLevel("Error")
      );
      return Sentry.captureException(err);
    }

    if (response) {
      return dispatch(setList(response.body.data));
    }
  });

API catch.

import * as Sentry from "@sentry/browser";

export const apiCatch = (error, getState) => {
  const store = getState();
  const storeStringify = JSON.stringify(store);
  const { root: { user: { email } } } = store;

  Sentry.configureScope(
    scope => scope
      .setLevel("Error")
      .setUser({ email })
      .setExtra("store", storeStringify)
  );
    // Sentry.showReportDialog(); - If you want get users feedback on error
  return Sentry.captureException(error);
};

api.

export default query => (dispatch, getState) => {
  superagent
    .get(`https://deezerdevs-deezer.p.rapidapi.com/search?q=${query}`)
    .set("X-RapidAPI-Key", #id_key)
    .end((error, response) => {
      if (error) {
        return apiCatch(error, getState)
      }

      if (response) {
        return dispatch(setList(response.body.data));
      }
    });
};

setLevel sentry. — ‘fatal’, ‘error’, ‘warning’, ‘log’, ‘info, ‘debug’, ‘critical’).
setUser (id, , . .).
setExtra , , , .

如果要获得用户对错误的反馈，则应使用showReportDialog函数。

Sentry.showReportDialog();

输出：

今天，我们描述了一种将Sentry集成到React应用程序中的方法。

→通过哨兵进行电报聊天

使用Sentry跟踪React应用中的错误

1.为什么需要哨兵？

Sentry?

2.

3. React Sentry

4.

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