错误边界与Sentry集成

1. Error Boundary

1.1 类组件实现

class ErrorBoundary extends React.Component {
  state = { hasError: false, error: null };

  static getDerivedStateFromError(error) {
    return { hasError: true, error };
  }

  componentDidCatch(error, errorInfo) {
    Sentry.captureException(error, {
      contexts: { react: { componentStack: errorInfo.componentStack } },
    });
  }

  render() {
    if (this.state.hasError) {
      return this.props.fallback || <h1>出错了</h1>;
    }
    return this.props.children;
  }
}

2. Sentry 集成

2.1 初始化

import * as Sentry from '@sentry/react';

Sentry.init({
  dsn: 'https://xxx@sentry.io/xxx',
  integrations: [Sentry.browserTracingIntegration(), Sentry.replayIntegration()],
  tracesSampleRate: 1.0,
  replaysSessionSampleRate: 0.1,
  replaysOnErrorSampleRate: 1.0,
});

2.2 React 集成

import * as Sentry from '@sentry/react';

// Sentry 提供的 ErrorBoundary
<Sentry.ErrorBoundary fallback={<ErrorPage />} showDialog>
  <App />
</Sentry.ErrorBoundary>;

// 路由追踪
const SentryRoute = Sentry.withSentryRouting(Route);

2.3 性能监控

const transaction = Sentry.startTransaction({ name: 'fetch-users' });
const span = transaction.startChild({ op: 'http', description: 'GET /api/users' });

try {
  await fetch('/api/users');
} finally {
  span.finish();
  transaction.finish();
}