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Spotlight is built that you don’t need Sentry to run it. It can contain any kind of integration. However, Sentry is the first integration we’ve built for Spotlight and it’s a great way to get started.

If you want your Sentry SDKs to talk to the Sidecar, enable the spotlight setting. You don’t need a dsn for Spotlight to work.

Web platforms

In the Browser you don’t need to set spotlight: true, Spotlight.init() will automatically detect if Sentry is available and if so, hook into the SDK.

dsn: '___DSN___',
// In the frontend it's important that you init Spotlight after Sentry

Mobile platforms

SentryAndroid.init(this, options -> {
// You should only enable this in your development environment
options.isEnableSpotlight = BuildConfig.DEBUG;

You also need to allow cleartext traffic from your emulator to the Sidecar on your host machine by adding the following to src/debug/res/xml/network.xml:

<?xml version="1.0" encoding="utf-8"?>
<domain-config cleartextTrafficPermitted="true">
<!-- Allow cleartext traffic from the emulator to the host machine -->
<!-- See for more details -->
<domain includeSubdomains="true"></domain>