# Exploring CompositionLocal API internals in Jetpack Compose

DevFeed: [Exploring CompositionLocal API internals in Jetpack Compose](<https://devfeed.tech/articles/exploring-compositionlocal-api-internals-in-jetpack-compose-25717.md>)

Original publisher: [Read original article](<https://blog.shreyaspatil.dev/exploring-compositionlocal-api-internals-in-jetpack-compose/>)

Author: Shreyas Patil

Published: 2026-03-09T05:19:42Z

Content type: article

Language: en

Sources: [Shreyas Patil's Blog](<https://devfeed.tech/sources/shreyas-patil-s-blog.md>)

Topics: [Compose](<https://devfeed.tech/topics/compose.md>), [Jetpack Compose](<https://devfeed.tech/topics/jetpack-compose.md>), [API](<https://devfeed.tech/topics/api.md>), [Kotlin](<https://devfeed.tech/topics/kotlin.md>), [Code](<https://devfeed.tech/topics/code.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [android-development](<https://devfeed.tech/tags/android-development.md>), [compose](<https://devfeed.tech/tags/compose.md>), [data](<https://devfeed.tech/tags/data.md>), [deep-dive](<https://devfeed.tech/tags/deep-dive.md>), [implementation](<https://devfeed.tech/tags/implementation.md>), [internals](<https://devfeed.tech/tags/internals.md>), [jetpack](<https://devfeed.tech/tags/jetpack.md>), [jetpack-compose](<https://devfeed.tech/tags/jetpack-compose.md>), [kotlin](<https://devfeed.tech/tags/kotlin.md>), [source](<https://devfeed.tech/tags/source.md>)

## AI overview

A deep dive into Jetpack Compose's CompositionLocal API, explaining how values flow implicitly through the composition tree and how the system is implemented with class hierarchies, value holders, persistent maps, and Composer integration.

## Source excerpt

Deep dive into the internals of Jetpack Compose's CompositionLocal API. Trace how data flows implicitly through the composition tree under the hood.