Improve User Interactions naming

[krystofwoldrich]

Description

Currently the user interactions require manually specified label <MyComponent labelKey={"manually-specicied-value"}>.

We could improve the naming by automatically using {File}:{Component}:{Line}:{Col} as a fallback label when none specified.

Result transaction naming would be -> HomeScreen.MediaCard.tsx:AddButton:123:12

What is needed?

• Should be opt-in (change the behaviour)
• Update docs as https://docs.sentry.io/platforms/react-native/integrations/component-names/ will be required for this to work
• Check if the annotation plugin includes line and col.
• Set sensible default to avoid too many unique transaction names (maybe line and col should be opt-in as they are expected to change per release)

[kahest]

Set sensible default to avoid too many unique transaction names

yes, this is important 👍

[antonis]

This is now covered by the work done in the "Make breadcrumbs data more useful on React Native" project. Instead of the {File}:{Component}:{Line}:{Col} format originally proposed, we shipped a richer automatic label fallback chain that produces more human-readable labels.

What's now in place (SDK 8.12.0+):

1. sentry-label — auto-injected from static text children at build time by the Babel plugin when annotateReactComponents is enabled (PR feat(core): Enable autoInjectSentryLabel by default in Metro config #6141)
2. accessibilityLabel / aria-label / testID — read automatically as label fallbacks (PR Auto-inject sentry-label from static JSX text children in Babel plugin #6098)
3. Runtime text extraction from children — extracts text from child components at runtime (PR Enable autoInjectSentryLabel by default in React Native Metro config #6109)
4. Component names (data-sentry-component / data-sentry-source-file) — already available via annotateReactComponents

Both breadcrumb labels and interaction span names (ui.action.click) use this improved fallback chain, so a button wrapping <Text>Save workout</Text> automatically gets the label "Save workout" without any manual annotation.

Closing as covered.