Angular SDK

The Sentry Angular SDK provides comprehensive error monitoring and performance tracking for Angular applications (Angular 14-20).

Installation

npm install @sentry/angular

Version Compatibility

Angular 14+ is fully supported
Angular 10-13: Use SDK version 7.x
Angular versions below 10: Not supported

Basic Setup

Standalone (Angular 14+)
NgModule (Legacy)

Initialize Sentry before bootstrapping your application:

// main.ts
import { bootstrapApplication } from '@angular/platform-browser';
import { init } from '@sentry/angular';
import { AppComponent } from './app/app.component';

init({
  dsn: 'YOUR_DSN_HERE',
  
  integrations: [
    // No additional setup needed for Angular
  ],
  
  tracesSampleRate: 1.0,
});

bootstrapApplication(AppComponent, appConfig);

Initialize in your main.ts:

// main.ts
import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { init } from '@sentry/angular';
import { AppModule } from './app/app.module';

init({
  dsn: 'YOUR_DSN_HERE',
  tracesSampleRate: 1.0,
});

platformBrowserDynamic()
  .bootstrapModule(AppModule)
  .catch(err => console.error(err));

ErrorHandler Integration

Standalone (Angular 14+)
NgModule (Legacy)

// app.config.ts
import { ApplicationConfig, ErrorHandler } from '@angular/core';
import { createErrorHandler } from '@sentry/angular';

export const appConfig: ApplicationConfig = {
  providers: [
    {
      provide: ErrorHandler,
      useValue: createErrorHandler({
        showDialog: true,
        logErrors: true,
      }),
    },
    // ... other providers
  ],
};

// app.module.ts
import { NgModule, ErrorHandler } from '@angular/core';
import { createErrorHandler } from '@sentry/angular';

@NgModule({
  // ...
  providers: [
    {
      provide: ErrorHandler,
      useValue: createErrorHandler({
        showDialog: true,
        logErrors: true,
      }),
    },
  ],
})
export class AppModule {}

Performance Monitoring

TraceService Setup

Enable automatic route change tracking:

Angular 19+ (provideAppInitializer)
Angular 14-18 (APP_INITIALIZER)
NgModule (Legacy)

// app.config.ts
import { ApplicationConfig, provideAppInitializer, inject } from '@angular/core';
import { TraceService } from '@sentry/angular';

export const appConfig: ApplicationConfig = {
  providers: [
    provideAppInitializer(() => {
      inject(TraceService);
    }),
    // ... other providers
  ],
};

// app.config.ts
import { ApplicationConfig, APP_INITIALIZER } from '@angular/core';
import { TraceService } from '@sentry/angular';

export const appConfig: ApplicationConfig = {
  providers: [
    {
      provide: APP_INITIALIZER,
      useFactory: () => () => {},
      deps: [TraceService],
      multi: true,
    },
  ],
};

// app.module.ts
import { NgModule, APP_INITIALIZER } from '@angular/core';
import { TraceService } from '@sentry/angular';

@NgModule({
  providers: [
    {
      provide: APP_INITIALIZER,
      useFactory: () => () => {},
      deps: [TraceService],
      multi: true,
    },
  ],
})
export class AppModule {}

Initialize Browser Tracing

import { init, browserTracingIntegration } from '@sentry/angular';

init({
  dsn: 'YOUR_DSN_HERE',
  
  integrations: [
    browserTracingIntegration(),
  ],
  
  // Set tracesSampleRate to 1.0 to capture 100%
  // of transactions for performance monitoring.
  tracesSampleRate: 1.0,
  
  // Propagate traces to these targets
  tracePropagationTargets: ['localhost', 'https://yourserver.io/api'],
});

Component Tracking

Track component performance with decorators and directives:

TraceDirective
TraceClass Decorator
TraceMethod Decorator

Track component initialization in templates:

// component.ts
import { Component } from '@angular/core';
import { TraceModule } from '@sentry/angular';

@Component({
  selector: 'app-dashboard',
  standalone: true,
  imports: [TraceModule],
  template: `
    <app-header trace="header"></app-header>
    <app-content trace="content"></app-content>
    <app-footer trace="footer"></app-footer>
  `,
})
export class DashboardComponent {}

This tracks the duration between OnInit and AfterViewInit lifecycle hooks.

Track component lifecycle at the class level:

import { Component } from '@angular/core';
import { TraceClass } from '@sentry/angular';

@Component({
  selector: 'app-header',
  templateUrl: './header.component.html',
})
@TraceClass()
export class HeaderComponent {
  // Component logic
}

Automatically tracks OnInit to AfterViewInit duration.

Track specific lifecycle methods:

import { Component, OnInit } from '@angular/core';
import { TraceMethod } from '@sentry/angular';

@Component({
  selector: 'app-footer',
  templateUrl: './footer.component.html',
})
export class FooterComponent implements OnInit {
  @TraceMethod()
  ngOnInit() {
    // Initialization logic
  }
  
  @TraceMethod({ name: 'custom-method' })
  async loadData() {
    // This method will be tracked
  }
}

Custom Performance Tracking

Track Bootstrap Process

import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { init, startSpan } from '@sentry/angular';
import { AppModule } from './app/app.module';

init({
  dsn: 'YOUR_DSN_HERE',
  tracesSampleRate: 1.0,
});

startSpan(
  {
    name: 'platform-browser-dynamic',
    op: 'ui.angular.bootstrap',
  },
  async () => {
    await platformBrowserDynamic().bootstrapModule(AppModule);
  },
);

Track Service Methods

import { Injectable } from '@angular/core';
import * as Sentry from '@sentry/angular';

@Injectable({
  providedIn: 'root',
})
export class DataService {
  async fetchData() {
    return await Sentry.startSpan(
      {
        name: 'DataService.fetchData',
        op: 'http.client',
      },
      async () => {
        const response = await fetch('/api/data');
        return response.json();
      },
    );
  }
}

Error Handling

Manual Error Capture

import { Component } from '@angular/core';
import * as Sentry from '@sentry/angular';

@Component({
  selector: 'app-user-profile',
  templateUrl: './user-profile.component.html',
})
export class UserProfileComponent {
  async saveProfile() {
    try {
      await this.userService.save(this.profile);
    } catch (error) {
      Sentry.captureException(error, {
        tags: {
          component: 'UserProfile',
          action: 'save',
        },
      });
    }
  }
}

ErrorHandler Options

import { createErrorHandler } from '@sentry/angular';

const errorHandler = createErrorHandler({
  // Show user feedback dialog
  showDialog: true,
  
  // Log errors to console
  logErrors: true,
  
  // Customize dialog options
  dialogOptions: {
    title: 'It looks like we\'re having issues.',
    subtitle: 'Our team has been notified.',
  },
});

HTTP Interceptor

Track HTTP requests:

import { ApplicationConfig, provideHttpClient, withInterceptors } from '@angular/core';
import { httpClientIntegration } from '@sentry/angular';

init({
  dsn: 'YOUR_DSN_HERE',
  integrations: [
    httpClientIntegration(),
  ],
});

Context & User Information

import { Injectable } from '@angular/core';
import * as Sentry from '@sentry/angular';

@Injectable({
  providedIn: 'root',
})
export class AuthService {
  setUser(user: User) {
    // Set user context
    Sentry.setUser({
      id: user.id,
      email: user.email,
      username: user.username,
    });
    
    // Add custom context
    Sentry.setContext('permissions', {
      roles: user.roles,
      features: user.enabledFeatures,
    });
    
    // Add tags
    Sentry.setTag('subscription', user.subscriptionTier);
  }
  
  clearUser() {
    Sentry.setUser(null);
  }
}

Router Instrumentation

The SDK automatically instruments Angular Router when TraceService is initialized:

import { Router } from '@angular/router';
import { Component } from '@angular/core';
import * as Sentry from '@sentry/angular';

@Component({
  selector: 'app-root',
  template: '<router-outlet></router-outlet>',
})
export class AppComponent {
  constructor(private router: Router) {
    // Router events are automatically tracked
    // Transaction names will match route paths
  }
}

Advanced Configuration

Complete Angular Setup

// main.ts
import { bootstrapApplication } from '@angular/platform-browser';
import { init, browserTracingIntegration, replayIntegration } from '@sentry/angular';
import { AppComponent } from './app/app.component';
import { appConfig } from './app/app.config';

init({
  dsn: 'YOUR_DSN_HERE',
  
  environment: 'production',
  release: '[email protected]',
  
  integrations: [
    browserTracingIntegration(),
    replayIntegration({
      maskAllText: true,
      blockAllMedia: true,
    }),
  ],
  
  // Performance
  tracesSampleRate: 0.2,
  tracePropagationTargets: ['localhost', /^https:\/\/api\.example\.com/],
  
  // Session Replay
  replaysSessionSampleRate: 0.1,
  replaysOnErrorSampleRate: 1.0,
  
  // Error filtering
  ignoreErrors: [
    'Non-Error exception captured',
    'ResizeObserver loop limit exceeded',
  ],
  
  beforeSend(event, hint) {
    // Filter or modify events
    if (event.exception) {
      console.log('Error captured:', hint.originalException);
    }
    return event;
  },
});

bootstrapApplication(AppComponent, appConfig);

// app.config.ts
import { ApplicationConfig, ErrorHandler, provideAppInitializer, inject } from '@angular/core';
import { provideRouter } from '@angular/router';
import { createErrorHandler, TraceService } from '@sentry/angular';
import { routes } from './app.routes';

export const appConfig: ApplicationConfig = {
  providers: [
    provideRouter(routes),
    
    {
      provide: ErrorHandler,
      useValue: createErrorHandler({
        showDialog: true,
        logErrors: true,
      }),
    },
    
    provideAppInitializer(() => {
      inject(TraceService);
    }),
  ],
};

Best Practices

TraceService

Always inject TraceService to enable automatic route tracking.

ErrorHandler

Component Tracking

Use TraceDirective for template-based tracking, decorators for classes.

Lazy Loading

Component tracking works with lazy-loaded modules automatically.

Next Steps

Router Tracking

Advanced router instrumentation

HTTP Interceptor

Track HTTP requests and responses

Performance

Component performance monitoring

Source Maps

Upload source maps for production

Browser & Frontend

Server & Backend

Full-Stack Frameworks

Serverless & Edge

Installation

Version Compatibility

Basic Setup

ErrorHandler Integration

Performance Monitoring

TraceService Setup

Initialize Browser Tracing

Component Tracking

Custom Performance Tracking

Track Bootstrap Process

Track Service Methods

Error Handling

Manual Error Capture

ErrorHandler Options

HTTP Interceptor

Context & User Information

Router Instrumentation

Advanced Configuration

Best Practices

TraceService

ErrorHandler

Component Tracking

Lazy Loading

Next Steps

Router Tracking

HTTP Interceptor

Performance

Source Maps

Build docs developers (and LLMs) love

Browser & Frontend

Server & Backend

Full-Stack Frameworks

Serverless & Edge

​Installation

​Version Compatibility

​Basic Setup

​ErrorHandler Integration

​Performance Monitoring

​TraceService Setup

​Initialize Browser Tracing

​Component Tracking

​Custom Performance Tracking

​Track Bootstrap Process

​Track Service Methods

​Error Handling

​Manual Error Capture

​ErrorHandler Options

​HTTP Interceptor

​Context & User Information

​Router Instrumentation

​Advanced Configuration

​Best Practices

TraceService

ErrorHandler

Component Tracking

Lazy Loading

​Next Steps

Router Tracking

HTTP Interceptor

Performance

Source Maps

Build docs developers (and LLMs) love

Installation

Version Compatibility

Basic Setup

ErrorHandler Integration

Performance Monitoring

TraceService Setup

Initialize Browser Tracing

Component Tracking

Custom Performance Tracking

Track Bootstrap Process

Track Service Methods

Error Handling

Manual Error Capture

ErrorHandler Options

HTTP Interceptor

Context & User Information

Router Instrumentation

Advanced Configuration

Best Practices

Next Steps