Android: Distributed tracing for RN (cross-thread)

[adhorodyski]

Describe the feature

We want to provide an automatic way of context sharing between JS and Native. No matter where you collect your telemetry, it will be correctly marked for you.

Spec: https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/context/api-propagators.md

JS:
https://opentelemetry.io/docs/languages/js/propagation/
https://github.com/open-telemetry/opentelemetry-js/blob/main/api/src/context/types.ts#L49

Java:
https://opentelemetry.io/docs/languages/java/api/#context-api

https://github.com/open-telemetry/opentelemetry-java/blob/f17b8b0414eeaf3f6bf8558f1da0ef462997c99e/context/src/main/java/io/opentelemetry/context/Context.java#L88

https://github.com/open-telemetry/opentelemetry-java/blob/b468a2e9bf0f3e46b5c18c1fcf038f387ad5ed1b/context/src/main/java/io/opentelemetry/context/ContextStorage.java#L63

Motivation

Effortless context sharing between JS and Native contexts.

Related Issues

[adhorodyski]

I might have been wrong and this might require setting up a custom Context Manager that syncs bidirectionally.

https://github.com/open-telemetry/opentelemetry-js/blob/fb2fdd293fcd2a4479d0ee10f1dfef12283225d7/packages/opentelemetry-sdk-trace-web/src/StackContextManager.ts