Angular CLI

Upload your source maps using the Angular CLI, a custom Angular builder and the Sentry webpack plugin.

You can use the Angular CLI together with our Sentry webpack plugin to automatically create releases and upload source maps to Sentry when building your app (with ng build, for example). Due to Angular's closed build system, to register the webpack plugin, you'll first need to configure a custom builder. In the end, you'll be able to automatically upload source maps whenever you're creating a production build of your app.

Install the custom webpack builder for Angular and the Sentry webpack plugin:

npm install --save-dev @angular-builders/custom-webpack @sentry/webpack-plugin

With these packages installed, configure your app to upload source maps in three steps:

In your angular.json, replace the default builder (@angular-devkit/build-angular) with @angular-builders/custom-webpack:

  "projects": {
    "my-project": {
      "architect": {
        "build": {
          "builder": "@angular-builders/custom-webpack:browser",
          "options": {
            "customWebpackConfig": {
              "path": "./webpack.config.js"
            // ... other options
          // ... other options
        // ... other options
      // ... other options

This guide assumes you are using a Sentry SDK on version 7.47.0 or higher.

If you are on an older version and you want to upload source maps we recommend upgrading your SDK to the newest version.

To upload source maps you have to configure an auth token. Auth tokens can be passed to the plugin explicitly with the authToken option, with a SENTRY_AUTH_TOKEN environment variable, or with an .env.sentry-build-plugin file in the working directory when building your project. We recommend you add the auth token to your CI/CD environment as an environment variable.


Register the Sentry Webpack plugin in your webpack.config.js:

const { sentryWebpackPlugin } = require("@sentry/webpack-plugin");

module.exports = {
  // ... other config above ...

  devtool: "source-map", // Source map generation must be turned on
  plugins: [
      org: "example-org",
      project: "example-project",
      authToken: process.env.SENTRY_AUTH_TOKEN,

Learn more about configuring the plugin in our Sentry webpack plugin documentation.

To upload the source maps, build your Angular application:

ng build # add --prod for Angular versions below 13

The Sentry webpack plugin doesn't upload source maps in watch-mode/development-mode. We recommend running a production build to test your implementation.

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