@sentry/webpack-plugin

What is @sentry/webpack-plugin?

The @sentry/webpack-plugin is a plugin for Webpack that enables you to automatically upload source maps to Sentry, facilitating better debugging of JavaScript errors by linking errors to the original source code, rather than the minified or compiled code served to clients. It integrates seamlessly with Sentry's error tracking and monitoring system, making it easier to track down and fix issues in production environments.

What are @sentry/webpack-plugin's main functionalities?

Source Maps Upload

Automatically uploads source maps to Sentry for better error tracking and debugging. This feature is crucial for understanding and resolving issues in production by linking errors back to the original source code.

{
  plugins: [
    new SentryWebpackPlugin({
      include: ".", // The directory to include in source maps upload
      ignore: ["node_modules", "webpack.config.js"], // Files and directories to ignore
      urlPrefix: "~/static/js", // Prefix that will be added to each of the files in the `include` option
      release: process.env.RELEASE_VERSION // The release version to associate the source maps with
    })
  ]
}

Release Health Tracking

Configures release and deploy information, enabling tracking of release health within Sentry. This helps in monitoring the impact of each release on your application's stability and performance.

{
  plugins: [
    new SentryWebpackPlugin({
      release: process.env.RELEASE_VERSION, // Define the release version
      setCommits: {
        repo: 'your-repo-name',
        auto: true
      },
      deploy: {
        env: 'production'
      }
    })
  ]
}

Other packages similar to @sentry/webpack-plugin

source-map-loader

The source-map-loader uses source maps to allow you to debug your original source code instead of the transformed code. While it doesn't upload source maps to Sentry, it serves a similar purpose in improving the debugging experience by handling source maps in Webpack builds.

webpack-bugsnag-plugins

This package provides a set of Webpack plugins for integrating with Bugsnag, similar to how @sentry/webpack-plugin integrates with Sentry. It includes features for uploading source maps to Bugsnag and automatically reporting build information, offering a comparable functionality for error tracking and monitoring in applications.

README

Sentry Webpack Plugin

A Webpack plugin that provides source map and release management support for Sentry.

Installation

Using npm:

npm install @sentry/webpack-plugin --save-dev

Using yarn:

yarn add @sentry/webpack-plugin --dev

Using pnpm:

pnpm install @sentry/webpack-plugin --dev

Example

// 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: [
    sentryWebpackPlugin({
      org: process.env.SENTRY_ORG,
      project: process.env.SENTRY_PROJECT,

      // Auth tokens can be obtained from https://sentry.io/settings/account/api/auth-tokens/
      // and need `project:releases` and `org:read` scopes
      authToken: process.env.SENTRY_AUTH_TOKEN,
    }),
  ],
};

Options

• org
• project
• authToken
• url
• headers
• debug
• silent
• errorHandler
• telemetry
• disable
• sourcemaps
  • assets
  • ignore
  • rewriteSources
  • filesToDeleteAfterUpload
• release
  • name
  • inject
  • create
  • finalize
  • dist
  • vcsRemote
  • setCommits
  • deploy
  • cleanArtifacts
  • uploadLegacySourcemaps
• _experiments
  • injectBuildInformation

org

Type: string

The slug of the Sentry organization associated with the app.

project

The slug of the Sentry project associated with the app.

This value can also be specified via the SENTRY_PROJECT environment variable.

authToken

Type: string

The authentication token to use for all communication with Sentry. Can be obtained from https://sentry.io/settings/account/api/auth-tokens/. Required scopes: project:releases (and org:read if setCommits option is used).

This value can also be specified via the SENTRY_AUTH_TOKEN environment variable.

url

Type: string

The base URL of your Sentry instance. Use this if you are using a self-hosted or Sentry instance other than sentry.io.

This value can also be set via the SENTRY_URL environment variable.

Defaults to https://sentry.io/, which is the correct value for SaaS customers.

headers

Type: Record<string, string>

Headers added to every outgoing network request.

debug

Type: boolean

Print useful debug information. Defaults to false.

silent

Type: boolean

Suppresses all logs. Defaults to false.

errorHandler

Type: (err: Error) => void

When an error occurs during release creation or sourcemaps upload, the plugin will call this function.

By default, the plugin will simply throw an error, thereby stopping the bundling process. If an errorHandler callback is provided, compilation will continue, unless an error is thrown in the provided callback.

To allow compilation to continue but still emit a warning, set this option to the following:

errorHandler: (err) => {
  console.warn(err);
}

telemetry

Type: boolean

If set to true, internal plugin errors and performance data will be sent to Sentry.

At Sentry we like to use Sentry ourselves to deliver faster and more stable products. We're very careful of what we're sending. We won't collect anything other than error and high-level performance data. We will never collect your code or any details of the projects in which you're using this plugin.

Defaults to true.

disable

Type: boolean

Completely disables all functionality of the plugin. Defaults to false.

sourcemaps

Options for uploading source maps.

sourcemaps.assets

Type: string | string[]

A glob or an array of globs that specifies the build artifacts that should be uploaded to Sentry.

If this option is not specified, the plugin will try to upload all JavaScript files and source map files that are created during build.

The globbing patterns follow the implementation of the glob package. (https://www.npmjs.com/package/glob)

Use the debug option to print information about which files end up being uploaded.

sourcemaps.ignore

Type: string | string[]

A glob or an array of globs that specifies which build artifacts should not be uploaded to Sentry.

Default: []

The globbing patterns follow the implementation of the glob package. (https://www.npmjs.com/package/glob)

Use the debug option to print information about which files end up being uploaded.

sourcemaps.rewriteSources

Type: (source: string, map: any) => string

Hook to rewrite the sources field inside the source map before being uploaded to Sentry. Does not modify the actual source map. Effectively, this modifies how files inside the stacktrace will show up in Sentry.

Defaults to making all sources relative to process.cwd() while building.

sourcemaps.filesToDeleteAfterUpload

Type: string | string[]

A glob or an array of globs that specifies the build artifacts that should be deleted after the artifact upload to Sentry has been completed.

The globbing patterns follow the implementation of the glob package. (https://www.npmjs.com/package/glob)

Use the debug option to print information about which files end up being deleted.

release

Options related to managing the Sentry releases for a build.

More info: https://docs.sentry.io/product/releases/

release.name

Type: string

Unique identifier for the release you want to create.

This value can also be specified via the SENTRY_RELEASE environment variable.

Defaults to automatically detecting a value for your environment. This includes values for Cordova, Heroku, AWS CodeBuild, CircleCI, Xcode, and Gradle, and otherwise uses the git HEAD's commit SHA. (the latterrequires access to git CLI and for the root directory to be a valid repository)

If you didn't provide a value and the plugin can't automatically detect one, no release will be created.

release.inject

Type: boolean

Whether the plugin should inject release information into the build for the SDK to pick it up when sending events. (recommended)

Defaults to true.

release.create

Type: boolean

Whether the plugin should create a release on Sentry during the build. Note that a release may still appear in Sentry even if this is value is false because any Sentry event that has a release value attached will automatically create a release. (for example via the inject option)

Defaults to true.

release.finalize

Type: boolean

Whether the Sentry release should be automatically finalized (meaning an end timestamp is added) after the build ends.

Defaults to true.

release.dist

Type: string

Unique identifier for the distribution, used to further segment your release.

release.vcsRemote

Type: string

Version control system remote name.

This value can also be specified via the SENTRY_VSC_REMOTE environment variable.

Defaults to 'origin'.

release.setCommits

Option to associate the created release with its commits in Sentry.

release.setCommits.previousCommit

Type: string

The commit before the beginning of this release (in other words, the last commit of the previous release).

Defaults to the last commit of the previous release in Sentry.

If there was no previous release, the last 10 commits will be used.

release.setCommits.ignoreMissing

Type: boolean

If the flag is to true and the previous release commit was not found in the repository, the plugin creates a release with the default commits count instead of failing the command.

Defaults to false.

release.setCommits.ignoreEmpty

Type: boolean

If this flag is set, the setCommits step will not fail and just exit silently if no new commits for a given release have been found.

Defaults to false.

release.setCommits.auto

Type: boolean

Automatically sets commit and previousCommit. Sets commit to HEAD and previousCommit as described in the option's documentation.

If you set this to true, manually specified commit and previousCommit options will be overridden. It is best to not specify them at all if you set this option to true.

release.setCommits.repo

Type: string

The full repo name as defined in Sentry.

Required if the auto option is not set to true.

release.setCommits.commit

Type: string

The current (last) commit in the release.

Required if the auto option is not set to true.

release.deploy

Adds deployment information to the release in Sentry.

release.deploy.env

Type: string

Environment for this release. Values that make sense here would be production or staging.

release.deploy.started

Type: number | string

Deployment start time in Unix timestamp (in seconds) or ISO 8601 format.

release.deploy.finished

Type: number | string

Deployment finish time in Unix timestamp (in seconds) or ISO 8601 format.

release.deploy.time

Type: number

Deployment duration (in seconds). Can be used instead of started and finished.

release.deploy.name

Type: string

Human readable name for the deployment.

release.deploy.url

Type: string

URL that points to the deployment.

release.cleanArtifacts

Type: boolean

Remove all previously uploaded artifacts for this release on Sentry before the upload.

Defaults to false.

release.uploadLegacySourcemaps

Type: string | IncludeEntry | Array<string | IncludeEntry>

Legacy method of uploading source maps. (not recommended unless necessary) One or more paths that should be scanned recursively for sources.

Each path can be given as a string or an object with more specific options.

The modern version of doing source maps upload is more robust and way easier to get working but has to inject a very small snippet of JavaScript into your output bundles. In situations where this leads to problems (e.g subresource integrity) you can use this option as a fallback.

The IncludeEntry type looks as follows:

type IncludeEntry = {
    /**
     * One or more paths to scan for files to upload.
     */
    paths: string[];

    /**
     * One or more paths to ignore during upload.
     * Overrides entries in ignoreFile file.
     *
     * Defaults to `['node_modules']` if neither `ignoreFile` nor `ignore` is set.
     */
    ignore?: string | string[];

    /**
     * Path to a file containing list of files/directories to ignore.
     *
     * Can point to `.gitignore` or anything with the same format.
     */
    ignoreFile?: string;

    /**
     * Array of file extensions of files to be collected for the file upload.
     *
     * By default the following file extensions are processed: js, map, jsbundle and bundle.
     */
    ext?: string[];

    /**
     * URL prefix to add to the beginning of all filenames.
     * Defaults to '~/' but you might want to set this to the full URL.
     *
     * This is also useful if your files are stored in a sub folder. eg: url-prefix '~/static/js'.
     */
    urlPrefix?: string;

    /**
     * URL suffix to add to the end of all filenames.
     * Useful for appending query parameters.
     */
    urlSuffix?: string;

    /**
     * When paired with the `rewrite` option, this will remove a prefix from filename references inside of
     * sourcemaps. For instance you can use this to remove a path that is build machine specific.
     * Note that this will NOT change the names of uploaded files.
     */
    stripPrefix?: string[];

    /**
     * When paired with the `rewrite` option, this will add `~` to the `stripPrefix` array.
     *
     * Defaults to `false`.
     */
    stripCommonPrefix?: boolean;

    /**
     * Determines whether sentry-cli should attempt to link minified files with their corresponding maps.
     * By default, it will match files and maps based on name, and add a Sourcemap header to each minified file
     * for which it finds a map. Can be disabled if all minified files contain sourceMappingURL.
     *
     * Defaults to true.
     */
    sourceMapReference?: boolean;

    /**
     * Enables rewriting of matching source maps so that indexed maps are flattened and missing sources
     * are inlined if possible.
     *
     * Defaults to true
     */
    rewrite?: boolean;

    /**
     * When `true`, attempts source map validation before upload if rewriting is not enabled.
     * It will spot a variety of issues with source maps and cancel the upload if any are found.
     *
     * Defaults to `false` as this can cause false positives.
     */
    validate?: boolean;
};

_experiments

Type: string

Options that are considered experimental and subject to change. This option does not follow semantic versioning and may change in any release.

_experiments.injectBuildInformation

Type: boolean

If set to true, the plugin will inject an additional SENTRY_BUILD_INFO variable. This contains information about the build, e.g. dependencies, node version and other useful data.

Defaults to false.

Configuration File

As an additional configuration method, the Sentry Webpack plugin will pick up environment variables configured inside a .env.sentry-build-plugin file located in the current working directory when building your app.

More information

• Sentry Documentation
• Sentry Discord
• Sentry Stackoverflow